Materials Testing Systems
DYNAMIC
Multipurpose
Dynamic Testing Systems
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DYNAMIC
Materials Testing Systems
Multipurpose Dynamic
Materials Testing Systems
Series LFV
1 - 600 kN
Designed to evaluate the mechanical properties in static, quasi-static and dynamic (fatigue)
loading of materials, components, manufactured assemblies or finished goods. w+b offers
the wide selection of different models from
small table top units, floor-standing machines
up to high force capacity systems to test the
wide spectrum across material testing.
The reliable servohydraulic frames combined
with latest digital control system, software and
extensive range of accessories turn this machines into flexible & most innovative systems.
walter+bai Testing Machines
w+b multipurpose dynamic testing system are
available with actuator mounted in the base of
the machine for materials testing of standard
samples and fracture mechanical studies or
with actuator on top with integral T-slot platen providing the ultimate flexibility suitable to
fix grips or fixtures, components, specimens,
manufactures assemblies or finished goods.
Materials Testing Systems
DYNAMIC
Content - Section E
67
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Machine Type
Capacity Range
Page
Overview - Dynamic Multipurpose Testing Systems
68
Electromechanical Table-Top
72
1 - 2.5 kN
Servohydraulic Load Frames Series LFV 1 - 600 kN
- Table-Top Low Force
1 - 25 kN
- Compact Low Force
1 - 10 kN
- Compact
10 - 63 kN
- Actuator mounted on Crosshead
100 - 600 kN
- Actuator integrated in the Base
63 - 600 kN
Biaxial Testing Systems
High Force Testing Systems
86
88
Applications Dynamic Fatigue Testing - Medical Engineering
- Testing under Simulated Environmental Conditions
- Dynamic Fatigue Testing
- Biaxial Testing
- High Force 1000 kN and higher
- TMF - Thermo-Mechanical Fatigue Testing
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DYNAMIC
Materials Testing Systems
Multipurpose
Dynamic Testing Systems
For static, quasi-static and dynamic tensile,
compression or bending tests on materials, biomaterials, components and finished goods.
The Series LFV testing systems provide advanced solutions to static and cyclic dynamic fatigue testing applications in the range
of Newtons up to 3000 kN or higher. These
flexible, precise and compact systems are designed to meet the toughest challenges including uniaxial, multiaxial or axial-torsional
applications. The machines are modular constructed and can be configured with a variety of grips and fixtures, extensometers, force
transducers, environmental chambers, thermo-mechanical testing equipment, different
software packages and other accessories to
suits your specific testing needs and provide
the ultimate flexibility.
walter+bai Testing Machines
The Series LFV family of testing systems are available for
Examples of Specimens
Examples of Test Types
•
•
•
•
•
•
•
•
•
•
•
•
•
Biomechanical Products
Biomedical Implants
Aluminium
Composites
Steel and Metals
Super Alloys
Components
Wood and Paper
Plastics
Elastomers
Soil
Asphalt and Bituminous Materials
•
•
•
•
•
•
•
•
•
•
Static Tension, Compression, Flexure
and Shear Testing
LCF - Low Cycle Fatigue Testing
HCF - High Cycle Fatigue Testing
Component Life Testing
Fatigue Crack Growth Testing
Fracture Toughness Testing
Tensile Proof & Ultimate Strength Testing
Creep and Visco Elastic Characteristics
Modulus of Elasticity
Poisson’s Ratio
TMF - Thermo Mechanical Fatigue
Materials Testing Systems
DYNAMIC
Load Frames 1 – 600 kN
69
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Series LFV - E
1 - 2.5 kN
Electrodynamic Actuator:
mounted on the upper crosshead
Series LFV - L
1 - 25 kN
Series LFV
1 - 10 kN
Actuator:
mounted on the upper crosshead
Actuator:
mounted on the upper crosshead
Hydraulic Supply:
- integrated in base or
- external free standing
Hydraulic Supply:
- integrated in base or
- external free standing
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Series LFV
10 - 63 kN
Series LFV
100 - 600 kN
Series LFV
63 - 600 kN
Actuator:
mounted on the upper crosshead
Actuator:
mounted on the upper crosshead
Actuator:
integrated in the machine base
Hydraulic Supply:
- integrated in base
- external free standing
Hydraulic Supply:
external free standing
Hydraulic Supply:
external free standing
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DYNAMIC
High Force Testing
The servohydraulic high force testing machines are customized systems available in various configurations to accommodate a wide range
of specimens, components or finished goods. The load frames are rigid
4-column units providing superior axial and lateral stiffness and precision aligned for advanced static or dynamic testing of high strength
specimen and materials. A variety of high force grips and fixtures are
available to complete the system.
Biaxial Testing
Series LFV-T is specially equipped with rotary actuator to the end of the
linear actuators for axial/torsional testing requirements. It is well suited for static and dynamic testing applications. The system is supplied
with multi-channel controllers providing biaxial and therefore maximum performance and flexibility. It can be combined the full range of
axial actuators with different rotary actuators having specific torsional
torque capacity and torsional displacement.
walter+bai Testing Machines
Materials Testing Systems
Materials Testing Systems
DYNAMIC
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DYNAMIC
Materials Testing Systems
Electrodynamic
Testing Systems
Series LFV – E 1 - 2.5 kN
State-of-the-art ServoElectric testing system to
execute both static and dynamic testing on materials and components including biomaterials
and biomedical / dental implants, plastics, textiles composites and automotive or electronic
components.
The Series LFV-E are fluid-free non-hydraulic
systems currently available with force capacities up to 2.5 kN for fatigue and durability testing, tensile, compression, bend, peel or shear
strength testing as well as crack initiation.
These table top systems with its SerovElectric drive mounted on upper crosshead represents a versatile and reliable fatigue rated
testing machines combined with latest drive
technology. These machines are selected from
testing professionals in quality control, R&D
or Universities who desire a compact space
saving, clean and quite low force testing unit
that requires no environmental consideration
and virtually no maintenance.
The ServoElectric drive with its in-line digital
displacement transducer provides noise-free
stroke measurement or control. This drive features backlash-free motion with no fluid compressibility to compromise position accuracy.
The system is available with integral T-slot
platen providing high degree of flexibility or
attachable (to the upper crosshead) closed
frame often used from those who test e.g.
dental implants in combination with saline
bath.
The upper crosshead can be lift or lowered
through integrated electrical spindles to adjust the desired test space. Only unclamp the
crosshead by twisting the lever clamps and
pushing the up / down bottom without any
tools. The spindles for lift/lower are protected
against dust or mechanical damage. An emergency stop is available direct at the testing
machine as well as on the remote control unit
which can be used for precise of the actuator
through digital hand-wheel.
Features
•
•
•
•
•
•
•
•
walter+bai Testing Machines
Flexible system for simple static to high
frequency fatigue tests
Clean and quite non-hydraulic drive
with integral bearings
Backlash-free motion with no fluid
compressibility
Integrated noise-free stroke transducer
Virtually maintenance free system with
lower life cycle cost
Reduced moving parts
Easy to operate
Space saving compact design
Materials Testing Systems
DYNAMIC
Specifications
73
A
Accuracy
In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.
Control
Standard:
Option:
Actuator
Mounted on upper crosshead.
Piston Stroke
Standard:
Crosshead Adjustment
Standard: ME mechanically locked and electrical adjustment.
Option: M mechanically locked and manual adjustable.
Power Requirements
3 x 400 V, 50 Hz. Others upon request.
force and displacement closed loop controlled.
with extensometer strain closed loop controlled.
B
±25 mm. Others upon request.
C
D
E
Type LFV - E








Max. Test Load Dynamic
Max. Test Load Static
Piston Stroke (Kh)
Test Chamber Height (Ph)
Distance betw. Columns (LW)
Column Diameter (Sd)
Width (B)
Depth (T)
Height (H)
Weight Frame
Frame Stiffness
Working Height with Base (A)
Total Dimensions with Base
Total Weight Machine with Base
kN
kN
mm
mm
mm
mm
mm
mm
mm
kg
kN/mm
mm
mm
kg
1
2.5
±1
±1
±25
740
440
80
730
500
1640
180
40
1100
1400 x 700 x 2750
340
±2.5
±2.5
±25
740
440
80
730
500
1640
220
40
1100
1400 x 700 x 2750
380
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DYNAMIC
Materials Testing Systems
Multipurpose Dynamic
Servohydraulic Testing Systems
Series LFV
In rigid 2-column-constructions for superior axial and lateral stiffness Precision aligned for advanced testing according to relevant standards.
Options
for Testing Actuator
• mounted on upper crosshead
• integrated in the machine base
Options
for Hydraulic Power Supply
• integrated in the machine base
• separate free standing power pack
Options
for Crosshead Adjustment
M
ME
HM
HH
Lock: Mechanical
Lock: Mechanical
Lock: Mechanical
Lock: Hydraulic
Lift: Manual
Lift: Electrical
Lift: Hydraulic
Lift: Hydraulic
Features
• Machine can be equipped with integral
T-slot platen suitable to fix components,
specimens or manufactured assemblies.
• Compression platens or bending / folding
devices may be fixed direct into wedge
grips or interfaced with backlash-free
washers.
• Manifold is attached direct on actuator
providing close-coupled servovalve and
accumulators for improved performance.
• Equal area actuator with hydrostatic
bearings mounted on crosshead or integrated in the machine base.
• Columns are chrome plated and hardened for easy cleaning and longest life.
• Dynamic rated Precision flat load cell
mounted on piston rod end
• Integrated displacement transducer.
• Including grip control system mounted directly at the machine.
Load Frame
The Series LFV load frames are designed for
precision Testing for a wide range of dynamic
applications. They are rigid two- or four-column construction for superior axial and lateral stiffness and precision aligned ensure consistent loading is applied to specimen. If the
actuator is mounted on upper crosshead the
walter+bai Testing Machines
machine having a integral T-slot platen suitable to fix grips or fixtures, components, specimens, manufactured assemblies or finished
goods. The actuator is well suited for high
piston speed at virtually service-free fatigue
testing with manifold attached direct on actuator providing close-coupled servovalve and
accumulators for improved performance with
highest possible respond and reduced pressure fluctuations. To facilitate re-positioning,
the upper crosshead of the Series LFV is adjustable and the columns are chrome plated
for easy cleaning and longest life.
Actuator
Part of the load frame of the Series LFV is a
double ended, in equal area constructed actuator to generate equal axial force in tension
and compression with hydrostatic bearings.
The hydrostatic bearings provides extremely
low fiction for the most accurate control and
longest reliable lifetime at full ratings. A precision displacement transducer is integrated
in the actuators. They are well suited for all
types of testing (from static to dynamic) and
are known for their excellent fatigue reliability, accuracy and repeatability. These actuators
are the most versatile and by far the most
popular solution for all types of the Series LFV
multipurpose testing machines.
Load Cell
The dynamic testing systems are equipped
with precision fatigue rated load cells for
accurate force measurement and control.
They are either mounted on actuators piston rod end as required for component, finished goods or biomedical test applications
or otherwise on upper crosshead / alignment
fixture.
Hydraulic Power Supply
The dynamic performance of a particular Test
System is governed by oil flow and pressure.
The Series LFV with force capacities up to
50 kN and actuator on crosshead are available with in the machine base integrated power supply with up to 8 l/min oil flow. For larger oil flows the full range of external power
packs with ratings up to 500 l/min or even
higher is available to suit your requirements.
The power packs includes beside of the hydraulic system also all electrical parts as indicators and system management buttons. As
cooling systems air/oil cooler, water/oil cooler or alternative closed loop re-cooler system
are available.
Materials Testing Systems
DYNAMIC
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DYNAMIC
Materials Testing Systems
Table-Top
Dynamic Testing Systems
Series LFV – L
1 - 25 kN
Versatile and compact test systems configurable to meet the demands of modern testing
laboratories, R & D centres, institutes and universities. The Series LFV - L tabletop systems
are currently available in with force capacities
ranging from 1 kN up to 25 kN.
These fatigue rated systems represents the ideal solution to perform a large variety of static
and dynamic materials tests. This series is well
suited to perform static tension, compression,
flexure and shear tests, LCF - low cycle fatigue
testing, fatigue crack growth testing, fracture
toughness testing, further typically applications
includes testing of biomechanical products and
implants and more. The load frame features rigid designed with high axial and lateral stiffness
with high natural frequency. The upper crosshead is mechanically clamped and features automatic, motorized, positioning (lifting/lowering). Integrated in the upper crosshead is the
fatigue rated actuator with co-axially mounted displacement transducer. The manifold with
servo valve is mounted direct on the actuator
for the highest possible response and most accurate test control. The close coupled accumulators minimize the hydraulic pressure fluctuations. The fatigue rated, low-profile, low mass
designed precision load cell features high natural frequency and excellent long term stability.
The LFV-L is available with the alignment fixture for the adjustment of load string alignment
complying with ASTM E1012 or other standards. It is capable to perform alignment adjustments while the load train is fully preloaded.
As accessory the alignment verification equipment with strain-gauged specimen, electronic and software is available. The system is supplied with the state-of-the-art machine base. As
space saving system the solution with integrated hydraulic power pack up to 6 l/min. oil flow
is available. Otherwise the machine is supplied
with the low noise free standing hydraulic power pack Series PAC. To meet the full range of
mechanical testing needs the LFV-L can be configured with a variety of grips and fixtures, extensometers, environmental chambers, different
software packages and other accessories. The
LFV-L is also available with axial/ torsional drive,
upgrading your system from axial only to axial/
torsional performance. Standard ratings are 20,
50, 100 and 200 Nm. The torsional angle can
be chosen to meet your specific testing needs.
walter+bai Testing Machines
Materials Testing Systems
DYNAMIC
Specifications
A
Accuracy
In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.
Control
Standard:
Option:
Actuator
Mounted on upper crosshead.
Piston Stroke
Standard:
Option:
Crosshead Adjustment
Standard: ME mechanically locked and electrical adjustment.
Option: M mechanically locked and manual adjustable.
Hydraulic Power Pack
Standard:
Option:
Power Requirements
3 x 400 V, 50 Hz. Others upon request.
force and displacement closed loop controlled.
with extensometer strain closed loop controlled.
±50 mm
±75, ±100 or ±125 mm
Integrated in the base of the machine.
Free standing power pack for higher oil flows.
Type LFV - L








Max. Test Load Static
Max. Test Load Dynamic
Piston Stroke (Kh)
Max. Distance betw. Adapters (Ph)
Distance betw. Columns (LW)
Column Diameter (Sd)
Width (B)
Depth (T)
Height (H)
Weight Frame
Frame Stiffness
Working Height with Base
Total Dimensions with Base
Weight Base without PAC
Weight Base with PAC
77
kN
kN
mm
mm
mm
mm
mm
mm
mm
kg
kN/mm
mm
mm
kg
kg
1 / 2.5
6
±2.5
±2
±50
765
440
80
730
500
1850
150
110
±6
±5
±50
765
440
80
730
500
1850
150
110
140
350
B
C
D
E
16
25
±10
±16
±8
±12
±50
±50
765
765
440
440
80
80
730
730
500
500
1850
1850
150
150
110
110
1100
1400 x 790 x 2835
140
140
140
350
350
350
10
±25
±20
±50
765
440
80
730
500
1850
150
110
140
350
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DYNAMIC
Materials Testing Systems
Compact Low Force
Dynamic Testing Systems
Series LFV
1 – 10 kN
Specially designed for fatigue testing of low
strength materials such as biomedical implants
and dental implants as well as plastics, aluminium, elastomers, components and finished goods.
The upper crosshead features the innovative
electrical height adjustment for quick and accurate positioning for test set-up.
Actuator
mounted on upper crosshead
Crosshead Options
Standard:
ME
Option:
M
Hydraulic Power Options
Standard:
integrated in base
Option:
separate free standing
This multipurpose dynamic testing system
features the innovative electrical height adjustment for quick and accurate positioning
of the upper crosshead for different sizes of
specimens and different testing devices.
Also a salt bath for testing of implants in salt
solution up to 37° can be mounted into the
machine. The bath can easily be moved in and
out of the testing chamber.
Features
•
•
•
•
•
•
•
•
•
walter+bai Testing Machines
Rigid two-column construction
Precision aligned
Equal area actuator with hydrostatic
bearings mounted on top of crosshead
Manifold is attached direct on actuator
providing close-coupled servovalve and
accumulators for improved performance and reduced pressure fluctuations
Upper crosshead adjustable to facilitate
repositioning.
Columns are chrome plated and hardened for easy cleaning and longest life
Precision flat load cell mounted on piston rod end.
Integrated displacement transducer
Compression platens, bending or folding devices may be fixed directly into
wedge grips or backlash-free washers.
Materials Testing Systems
DYNAMIC
Specifications
A
Accuracy
In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.
Control Standard:
Option:
Actuator Mounted on upper crosshead.
Piston Stroke
Standard:
Option:
Crosshead Adjustment Standard: MEmechanically locked and electrical adjustment.
Option: M mechanically locked and manual adjustable.
Hydraulic Power Pack Standard: Option: Power Requirements 3 x 400 V, 50 Hz. Others upon request.
force and displacement closed loop controlled.
with extensometer strain closed loop controlled.
±25 mm
±50, ±75, ±100 or ±125 mm
Integrated in the base of the machine.
Free standing power pack for higher oil flows.
Type LFV
Max. Test Load Static
Max. Test Load Dynamic
Piston Stroke (Kh)
Max. Distance betw. Adapters (Ph)
Distance betw. Columns (LW)
Column Diameter (Sd)
Working Height (A)
Width (B)
Depth (T)
Height (H)
Weight (without Grips)
Frame Stiffness
79
B
C
D
E
1
2.5
6
10
kN
kN
mm
mm
mm
mm
±1
±1
±25
800
440
50
±2.5
±2
±25
800
440
50
±6
±5
±25
800
440
50
±10
±8
±25
800
440
50
mm
800
800
800
800
mm
mm
mm
kg
kN/mm
650
900
2400
480
80
650
900
2400
480
80
650
900
2400
480
80
650
900
2400
480
80
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DYNAMIC
Materials Testing Systems
Compact
Dynamic Testing Systems
Series LFV 10 - 63 kN
Specially designed for fatigue testing and research of biomedical implants, advanced materials, components, manufactured assemblies or
finished goods.
The crosshead features automatic adjustment
with hydraulic unlocking and hydraulic moving
through two long stroke actuators.
Actuator
mounted on upper crosshead
Crosshead Options
Standard:
HH
Option:
M, HM
Hydraulic Power Options
Standard:
integrated in base
Option:
separate free standing
These compact testing systems have the hydraulic power pack integrated in the base of
the machine. These machines are self-contained, stand-alone units. The actuator is
mounted on the upper crosshead. The machines are equipped with integral T-Slot platen suitable to fix components, specimens or
manufactured assemblies. The standard model features the hydraulically moveable crosshead with passive clamping for an easy and
accurate positioning of the upper crosshead.
Features
•
•
•
•
•
•
•
•
walter+bai Testing Machines
Rigid two-column construction
Precision aligned
Equal area actuator with hydrostatic
bearings mounted on top of crosshead
Manifold is attached direct on actuator providing close-coupled servo
valve and accumulators for improved
performance and reduced pressure
fluctuations.
Upper crosshead hydraulically adjustable to facilitate repositioning.
Columns are chrome plated and hardened for easy cleaning and longest life
Precision flat load cell mounted on piston rod end.
Integrated displacement transducer.
Materials Testing Systems
DYNAMIC
Specifications
A
Accuracy
In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.
Control Standard:
Option:
Actuator Mounted on upper crosshead.
Piston Stroke
Standard:
Option:
Crosshead Adjustment Standard: HHhydraulic unlocking and hydraulic lift.
Option: M mechanically locked and manual adjustable.
HMmechanically locked and hydraulic lift.
Hydraulic Power Pack Standard: Option: Power Requirements 3 x 400 V, 50 Hz. Others upon request.
force and displacement closed loop controlled.
with extensometer strain closed loop controlled.
±50 mm
±75, ±100 or ±125 mm
Width (B)
Depth (T)
Height (H)
Weight (without Grips)
Frame Stiffness
kN
kN
mm
mm
mm
mm
B
C
Integrated in the base of the machine.
Free standing power pack for higher oil flows.
Type LFV
Max. Test Load Static
Max. Test Load Dynamic
Piston Stroke (Kh)
Max. Distance betw. Adapters (Ph)
Distance betw. Columns (LW)
Column Diameter (Sd)
Working Height (A)
81
D
E
10
16
25
40
63
±10
±8
±50
700
420
80
±16
±12
±50
700
420
80
±25
±20
±50
700
420
80
±40
±32
±50
700
420
80
±63
±50
±50
700
420
80
mm
880
880
880
880
880
mm
mm
mm
kg
kN/mm
750
900
2550
850
160
750
900
2550
850
160
750
900
2550
850
160
750
900
2550
850
160
750
900
2550
850
160
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DYNAMIC
Materials Testing Systems
Multipurpose
Dynamic Testing Systems
Series LFV 100 - 600 kN
Versatile servohydraulic testing systems for
higher capacity applicable for the fully
spectrum of static and dynamic testing.
The actuator is mounted on upper crosshead
and the lower platen can be supplied with
T-Slots for the ultimate flexibility.
Actuator
mounted on upper crosshead
Crosshead Options
Standard:
HH
Option:
M, HM
Hydraulic Power Options
Standard:
separate free standing
The cylinder of this Series LFV is mounted on
the upper crosshead. The power pack is a
freestanding unit and can be placed in a separate room. The machines can be equipped
with integral T-slot platen suitable to fix components, specimens or manufactured assemblies. The machine can be configured with climatic chambers, high temperature furnaces,
testing devices and other accessories to suit
your specific testing needs.
Features
•
•
•
•
•
•
•
walter+bai Testing Machines
Hydraulic adjustable upper crosshead
to facilitate quick, easy, and accurate
positioning with passive clamping system and adjustment by two long stroke
actuators.
Equipped with integral T-slot platen
suitable to fix components, specimens
or manufactured assemblies.
Chrome plated and hardened columns
for easy cleaning and longest life.
High quality actuator with hydrostatic
bearings for the best static and dynamic performance in different specifications to depending on application.
Actuator available with integrated displacement transducer and with antirotation system to prevent the natural
tendency to rotate.
Manifold is attached direct on actuator
providing close-coupled servovalve and
accumulators for improved performance and reduced pressure fluctuations
Precision flat load cell mounted on
piston rod end and displacement
transducer.
Materials Testing Systems
DYNAMIC
Specifications


A
Accuracy
In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.
Control Standard:
Option:
Actuator Mounted on upper crosshead.
Piston Stroke
Standard:
Option:
Crosshead Adjustment Standard: HHhydraulic unlocking and hydraulic lift.
Option: M mechanically locked and manual adjustable.
HMmechanically locked and hydraulic lift.
Hydraulic Power Pack Standard: Power Requirements 3 x 400 V, 50 Hz. Others upon request.
Type LFV






Max. Test Load Static
Max. Test Load Dynamic
Piston Stroke (Kh)
Max. Distance betw. Grips (Ph)
Distance betw. Columns (LW)
Column Diameter (Sd)
Working Height (A)
Width (B)
Depth (T)
Height (H)
Weight (without Grips)
Frame Stiffness
83
kN
kN
mm
mm
mm
mm
force and displacement closed loop controlled.
with extensometer strain closed loop controlled.
±50 mm
±75, ±100 or ±125 mm
B
C
D
Free standing power pack.
E
100
150
250
400
600
±100
±80
±50
1000
800
80
±150
±120
±50
1080
650
100
±250
±200
±50
1200
600
100
±400
±320
±50
1200
600
100
±600
±500
±50
1080
700
100
mm
750
800
550
550
900
mm
mm
mm
kg
kN/mm
1220
1000
3330
1800
300
1050
600
3600
1900
750
1050
800
3800
2900
1000
1050
800
3800
2900
1000
1190
750
4550
6500
1400
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84
DYNAMIC
Materials Testing Systems
Compact Multipurpose
Dynamic Testing Systems
Series LFV 63 - 600 kN
Advanced high performance solution for Static, Fracture Toughness, LCF, Thermo Mechanical
Fatigue (TMF), Fatigue Crack Growth and High
Cycle Fatigue Testing. Servohydraulic Testing
Machine in rigid construction with high axial and
lateral stiffness, and precision aligned to satisfy
a wide range of different test types.
Actuator
integrated in the base
Crosshead Options
Standard:
HH
Option:
M, HM
Hydraulic Power Options
Standard:
separate free standing
These machines with its high natural frequency have the actuator integrated in the base of
the machine. The alignment fixture is fixed on
upper crosshead and provides alignment adjustment of the load string complying with
ASTM E1012 and other international standard
as required for LCF and other tests. As accessories the alignment verification equipment
with stain-gauged specimen (rod), electronic
and software is available. This self-supporting
unit is optimized for higher frequencies and
requires no special foundation. The frame with
its movable crosshead by two double acting
actuators provides accurate positioning, large
and easy accessible test space and allows the
integration of fracture toughness bending fixture, environmental or vacuum chamber or
high temperature furnace.
Features
•
•
•
•
•
•
•
•
•
walter+bai Testing Machines
High stiffness construction, precision
aligned
Movable upper crosshead for facilitate
quick, easy, and accurate positioning by
two long-stroke actuators
Passive clamping system
Inductive hardened, grounded and
chromium plated column
Double ended, equal area linear actuator with hydrostatic bearings for the
best friction free static and dynamic
performance, allows high side-loads
and emergency running, integrated in
machine’s base to shorten the force
train.
Integrated LVDT displacement
transducer
Servovalve with manifold mounted direct on the actuator for the highest
possible response and most accurate
test control
Close coupled accumulators to minimize hydraulic pressure fluctuations
and filter is mounted direct at the
actuator
High precision fatigue rated flat load
cell for static and fatigue tests fixed on
upper crosshead
Materials Testing Systems
DYNAMIC
Specifications








A
Accuracy
In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.
Control
Standard:
Option:
Actuator Integrated on upper crosshead.
Piston Stroke
Standard:
Option:
Crosshead Adjustment Standard: HHhydraulic unlocking and hydraulic lift.
Option: M mechanically locked and manual adjustable.
HMmechanically locked and hydraulic lift.
Hydraulic Power Pack Standard: Power Requirements 3 x 400 V, 50 Hz. Others upon request.
Type LFV
Max. Test Load Static
Max. Test Load Dynamic
Piston Stroke (Kh)
Max. Distance betw. Grips (Ph)
Distance betw. Columns (LW)
Column Diameter (Sd)
Working Height (A)
Width (B)
Depth (T)
Height (H)
Weight (without Grips)
Frame Stiffness
85
force and displacement closed loop controlled.
with extensometer strain closed loop controlled.
±50 mm
±75, ±100 or ±125 mm
C
D
Free standing power pack.
63 100*
±100
±80
±50
950
650
100
B
E
150
250
400
600
±150
±120
±50
950
650
100
±250
±200
±50
1150
650
100
±400
±320
±50
800
650
100
±600
±500
±50
800
700
120
kN
kN
mm
mm
mm
mm
±63
±50
±50
800
550
80
mm
800
800
800
800
800
900
mm
mm
mm
kg
kN/mm
900
600
2500
980
250
1100
600
2800
1500
750
1100
600
2800
1500
750
1050
600
3125
1990
1000
1050
600
3125
1990
1000
1300
850
3300
2800
1300
* HM and M Versions same as load frame Type LFV 63
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86
DYNAMIC
Materials Testing Systems
Multipurpose Dynamic
Biaxial Testing Systems
Series LFV – T
Specially designed for the experimental determination of mechanical properties of materials,
components or products subject to combined
axial and torsional loading. Available with customized torsional moment, angle and frequency range upgrading your system from axial
only to axial / torsional performance.
Since no standard testing method exist for
multiaxial fatigue testing, it is important to
choose a testing method suitable for a purpose of each testing. Due to that fact, beside
to the standard axial loadings the torsional
drive can be added to the full line of the multipurpose dynamic Testing Machines Series
LFV with customized torsional moment, angle and frequency range to suit your specific
testing needs.
The Series LFV-T of biaxial fatigue testing machines can torsion loading be coupled with
tension-compression. Both torsion and tension-compression can be loaded independently in phase or out of phase. With related
accessories the Series LFV-T of testing machines allows to perform a wide range of
mixed-mode fatigue testing on rectangular
plate specimens, cruciform specimens, threepoint and four-point bending specimens
with a crack, compact tension shear specimen, compact shear specimen, mode II crack
growth specimen, circumferentially notched
cylindrical specimens, tubular specimen containing a slit, solid cylindrical specimen containing a small hole or initial crack, tubular
specimen for triaxial fatigue testing by applying internal or external pressure and a lot
others.
Features
•
•
•
•
•
•
•
walter+bai Testing Machines
Double ended, equal area linear actuator with hydrostatic bearings for the
best friction free static and dynamic
performance, allows high side-loads
and emergency running, integrated in
the upper or lower crosshead to shorten the force train. With displacement
transducer.
Dynamic rated torsion drive closed coupled to the axial actuator
High precision angle transducer.
One-chamber-design, High stiffness
construction, precision aligned, inductive hardened, grounded and chromium
plated columns.
Servovalve manifold platen mounted
direct on the actuator for the highest
possible response and most accurate
test control.
Close coupled accumulators to minimize hydraulic pressure fluctuations
High precision fatigue rated biaxial
load cell for static and fatigue tests
fixed on the upper crosshead, lower tslot base platen or piston rod end for
testing of components.
Materials Testing Systems
DYNAMIC
Specifications
87
A
Accuracy
In accordance with ISO 7500-1, Grade 0.5.
Closed Loop Control
Axial force, torque displacement, angle
with extensometers also axial strain and
torsional shear strain angle.
Axial-Torsional Grips
Series WGR - H
Series SPG
Series HCG
B
C
Axial-Torsional Extensometers Series 3550
D
E
Typical Axial-Torsional Configurations
All others are also available.
Type LFV
10-T... 25-T...
50-T... 100-T... 250-T... 630-T... 1000-T...
Axial Force
kN
10
25
50
100
250
630
1000
Torsional Capacity
Nm
20
50
50
100
200
500
1000
2000
4000
6000
8000
16000
4000
6000
8000
16000
32000
±50
±150
±360
±1080
±50
±150
±50
±150
±50
±50
±50
±50
Working Rotation Angle
°
For models with working rotation angle ±50° additional ±10°hydraulic damping.
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88
DYNAMIC
Materials Testing Systems
Custom Designed
High Force
Dynamic Testing Systems
w+b offers a wide range of configured high
force testing systems for general materials testing including testing of metals, high
strength alloys, fasteners, ropes, rail and other
components or structures including civil engineering testing.
These testing systems are rugged and reliable
designed according to your testing needs in
various configurations. Typically built in rigid
4-column-construction providing superior axial and lateral stiffness and precision aligned.
Available are standard or custom models with
walter+bai Testing Machines
actuator in the base or crosshead. The horizontal and vertical daylights can chosen according to the requirements. Machines with
actuator mounted on crosshead can accommodate extended t-slot tables to fix samples, components, manufactured assemblies
or finished goods. This systems can be supplied with hydraulic grips, 3 and 4 point bend
fixtures, compression platen or tables and a
range of other accessories including a range
of extensometer.
Materials Testing Systems
DYNAMIC
89
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90
DYNAMIC
Materials Testing Systems
APPLICATIONS - Medical Engineering
Fatigue Testing of
Dental Implants
according to ISO 14801
Designed for dynamic fatigue testing of endosseous dental Implants
according to ISO 14801. Electrodynamic testing system type
LFV - E 1 kN with integrated saline bath for the simulation of real
conditions under temperatures
of 37°C. With Testing fixture for dental implants and loading device.
Fatigue Testing of
Hip Implant Prostheses
according to ISO 7206
Servohydraulic dynamic testing system with testing devices for testing
in quality control or research according to ISO 7206-1 up to -9. Machine
base is equipped with T-slots for easy
and accurate fixing of partial and total hip joint prostheses. All our actuators are free from wear due to hydrostatic bearings for best friction free
static and dynamic performance.
Testing of Spinal
Implant Constructs
according to ASTM F1717
The dynamic loading is performed
mostly at about 5 Hz frequency and up
to 5 Mio. cycles. The test are performed
in air but also in tempered bath (Ringers solution). The test can be done only
in compression axial direction but also
combined with torsional load. All our
actuators are free from wear due to
hydrostatic bearings for best friction
free static and dynamic performance.
Testing of Lower Limp
Prostheses according to
ISO/DIS 10328 und 22675
The machine is equipped with special
servo controlled tilting plate for the
simulation of the compression force
and walking motion on the tibia of
lower limb prostheses. With 2-channel control of axial load and tilting
plate in connection with PCS8000T2
and testing software DION7.
walter+bai Testing Machines
Materials Testing Systems
DYNAMIC
APPLICATIONS - Medical Engineering
A
Fatigue Testing
of Prosthetics Implants
B
The machine is specially designed
to perform static and dynamic tests
on Prosthetics in accordance with
ISO 10328 and ISO 22675:
•
Prosthetics - Structural testing
of lower-limb prostheses.
•
Prosthetics - Testing of anklefoot devices and foot units.
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Fatigue Testing of
Membranes of
Cardiac Valves
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Especially designed for simultaneous
displacement controlled testing of 6
samples with 6 load cells at a testing frequency up to 30 Hz and testing force of
20 N. Normally the test consist of up to
6006 load cycles during approximately
250 days. In connection with PCS8000
and DION7 for data acquisition and
data storage of all test datas of the
6 samples with min./max. force and
displacement / load cycles.
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Multi-Station
Dental Implant Testing
L
This system is designed for high productive and efficient dental testing.
The system consists of 8 load frames
Type LFV 2 kN with saline bath. In the
base integrated hydraulic power pack
and heated water circulation system.
The system is controlled by 8-channel
control and measuring system Type
PCS8000T8 and PC with materials
testing software DION7.
M
N
O
High Speed Impact
Tests up to 3 m/s
P
The dynamic testing machine Type
LFV 50 kN is specially designed for
static and dynamic high speed and
impact tests on biomedical samples.
For example testing of horse feet for
the determination of forces on joints.
The actuator and the load cell are
specially designed for impact testing
up to 3 m/s. The heavy lower base
platen features integral T-slots suitable to fix components, specimens or
manufactured assemblies. The machine base is vibration-free bedded.
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DYNAMIC
Materials Testing Systems
APPLICATIONS - Simulation of Environmental Conditions
HT Fatigue Testing of
Turbine Materials
with Type LFV 50 kN
Testing and Research
on Asphalt
with Type LFV 50 kN
Dynamic rated hydraulic grips Type
WGR-H 50 kN, high temperature furnace for temperatures up to 1250°C,
dynamic rated through zero high
temperature grips HTG 50 kN, different clevis grips Series CT for ambient
and high temperature testing, several
ambient and high temperature extensometers, and potential drop crack
growth monitor system type DMC-2.
Conducting uniaxial tests of asphalt
mixes to determine resilient modulus,
Poisson’s ratio, indirect tensile creep
and strength, dynamic modulus, tensile strength, phase angle, and flexure fatigue. Further triaxial asphalt,
soil resilient modulus, dynamic foundations design, liquefaction, and conventional UU, CU, and CD soil tests
are performed.
High Temperature
Testing up to 1350°C
in Type LFV 100 kN
Simulation of
Environmental
Conditions
in Type LFV 100 kN
The testing system is configured with
high temperature grips, furnace, extensometer and COD gauges for elevated temperature fatigue, fracture
toughness (JIC and R-Curve) and tensile tests according to international standards. The high temperature
grips are air-cooled for reliable and
accurate test results. COD-gauges are
equipped with ceramic rods.
Thermo Mechanical
Fatigue (TMF) Testing
in Type LFV 100 kN
The dynamic testing system Type LFV
100 kN is specially designed for thermo
mechanical fatigue (TMF) testing. The
machine is equipped with high speed
induction heating system, high temperature capacitive axial extensometer Type
3648 and hydraulic operated dynamic
collet grips Series HCG. The extensometer features through its design a very
low specimen contact force.
Simulation of
Environmental
Conditions in
Type LFV 500 kN
Dynamic testing machine in
4-column construction for superior stiffness. The machine is
equipped with hydraulic grips
Type SPG 500 and climatic
chamber for temperatures range
from -70°C up to +300°C, which
can easily be moved in and out
of the testing chamber.
walter+bai Testing Machines
The machine is equipped with climatic chamber for simulation of temperatures from -150°C up to 600°C and
additional relative humidity 40% up
to 90%, dynamic rated bend fixture
Type BT 399 and COD gauge Type
3541 for fracture toughness tests according to relevant standards.
Multipurpose Testing
with Type LFV 300 kN
Specially designed for dynamic fatigue
tests on various different sample under
normal conditions and under simulated
temperatures from - 70°C to + 40°C.
With pull rods, clevis grips, dynamic extensometers Series EXA, COD-gauge
Series 3541, fully automatic extensometer Type MFL 300, hydraulic grips Type
WGR - H 300 kN, self-aligning tension
grips Type SWG 300 kN.
Fatigue Testing of
Airplane Components
with Type LFV 300 kN
The dynamic testing system is specially equipped with temperature /
humidity chamber. For the execution of static and dynamic tests on
components of the aviation industry under simulated environmental conditions with temperatures
–150°C up to +600°C and additional relative humidity of 30% up
to 95%.
Materials Testing Systems
DYNAMIC
APPLICATIONS - Dynamic Fatigue Testing
Testing of Car Seats
with Type LFV 2 kN
Specially designed for static and dynamic testing of foam and flexible
cellular polymeric materials for car
seats. Integrated environmental test
chamber to perform test at different
air conditions. Test chamber allows to
test complete car seats components.
Standards: Determination of fatigue
by constant-load pounding according
to ISO 3385 or DIN 53574 etc. Determination of hardness by indentation
technique according to ISO 2439 etc.
Testing of
Automotive
Components
with Type LFV 20 kN
The testing machine is specially
equipped with T-slot base platen for
universal easy fixing of various components of the automotive industry.
Specially designed to determine the
fatigue life operating strength of various automotive components.
Testing of Springs
with Type LFV 50 kN
Specially designed for static and dynamic testing of springs. The machine
is equipped with special testing device for testing of 4 springs at one
time. Additionally the machine can
be equipped with load cells of 0.5
kN and 50 kN for very precise force
measurements in the appropriate
force ranges.
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Testing of
Components
with Type LFV 200 kN
The testing machine with extended
horizontal and vertical test space is
equipped with t-slots in the lower
base platen for an easy fixing of
components, assemblies and finished goods. The dynamic multipurpose testing system allows to
perform static monotonic and dynamic fatigue tests for research
and product quality assurance.
Standard Dynamic
Testing System
Type LFV 400 kN
Standardized execution of our dynamic multipurpose testing system family for static monotonic
and dynamic fatigue testing of
high strength materials. The machine is equipped with hydraulic
non-shift grips Series WGR - H
400 kN for precise clamping of
the specimen.
Fatigue Testing of
High Strength
Steel Samples
with Type LFV 500 kN
The multipurpose dynamic testing
system is equipped with dynamic
rated hydraulic parallel grips with
two-piston clamping Type SPG
500 kN and with extensometer
Series EXA for accurate and repeatable test results. The machine is used for research of high
strength steel.
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DYNAMIC
Materials Testing Systems
Applications Biaxial Dynamic Fatigue Testing
Dynamic Biaxial Low
Force Testing System
Type LFV 10 kN T10 Nm
This biaxial testing system is ideal
for specimens such as medical devices and biomaterials, electronic components, polymers, wires and other
components with smaller force rating. Various different test such as
bone screw fatigue, dental implant
wear or hip fatigue can be performed
in this multipurpose materials testing
system.
Dynamic Testing
in Temperature
Controlled Salt Solution
Type LFV 20 kN - T50 Nm
The testing system is specially designed for axial-loads up to 10 kN
and torque-loads up to 50 Nm at a
rotational angle of ±1080°. The testing machine is equipped with a saltwater bath with temperature regulation for biaxial fatigue testing of
medical devices and implants such as
dental, knee, bone or hip.
Dynamic
Biaxial Testing
of Soil Samples
with Type
LFV 50 kN – T200 Nm
This biaxial testing machine is configured with an extra wide and extra high testing area. The testing
system is specially designed for
different biaxial fatigue tests with
mutli-stress application on soil
samples in connection with triaxial cells.
Biaxial Testing
under Simulated
Environmental
Conditions with Type
LFV 100 kN T2000 Nm
The testing machine is equipped
with compression stamp and axial-torsional load cell. Additionally
the machine can be equipped with
climatic chambers for tension-torsion and compression-torsion testing under simulated environmental
conditions.
walter+bai Testing Machines
Tension- / CompressionTorsion Testing
with Type
LFV 250 kN - T1000 Nm
The machine is specially desigend for
axial-loads up to 250 kN and torqueloads up to 1000 Nm. It is an ideal
test system for specimens such as
automotive components, airplane
components, rails, flat and hexagonal specimens a.s.o. The frame of
the machine features a very high
stiffness.
Materials Research
with Type
LFV 300 kN T2000 Nm
The testing machine is equipped
with t-slots platen and axial-torsional rated hydraulic grips Type
WGR - H 300 kN and axial-torsional
extensometer Type 3550. The testing
system is used for defining material properties in a material research
facility. The machine allows to simulate multi-axial stresses on the
material.
High Force
Dynamic Testing
in Type
LFV 600 kN – T20’000 Nm
The biaxial fatigue testing system
is specially designed for high force
testing of various samples. The machine equipped with extended tslots base platen for easy specimen
fixing. The testing system is used
for research purposes on various
materials at a materials laboratory
of an university.
Biaxial Testing
in High Stiffness Load
Frame Type
LFV 500 kN T10’000 Nm
The machine is equipped with torsional rated two-piston hydraulic parallel grips Type SPG 500. The frame
of the machine features additional
strengthening for a very high axial
lateral and torsional stiffness. Various
other tests can be performed for universal use such as static monotonic
compression or bending tests.
Materials Testing Systems
DYNAMIC
Applications High Force Dynamic Fatigue Testing
95
A
Fatigue Testing of
Airplane Landing Gears
in Type LFV 1000 kN
High Force Testing
of Long Specimens
with Type LFV 2000 kN
The dynamic testing system machine
specially designed static and pseudostatic testing of assembled landing
gears, dampers and actuators. The testing rid for compression and tension forces up to 1000 kN and testing of components up to 3.5 meters height. Large
upper platen with threads to fix components and lower base platen with T-slots
and threads.
Dynamic testing system with very
large testing space for testing of
samples up to 2 meters length. The
testing machine is equipped with
hydraulic parallel grips for clamping of flat and round specimens
with different dimensions. The multipurpose testing system is used at a
university for research and material
development.
High Strength
Concrete Rebar
Fatigue Testing
with Type LFV 1000 kN
General Material
Testing Machine
for Civil Engineering
Type LFV 3000 kN
The testing machine in high stiffness
four-column design is equipped
with parallel wedge grips type SPG
1000 kN and fully automatic axial extensometer type MFL 300.
Rebars with different diameters
can be tested in the same grips
through exchangeable gripping
inserts.
Dynamic rated 3000 kN material
testing system in very rigid 4-column construction supplied to government laboratory.
The material testing machine is
used for general materials testing
including components and structures testing for civil engineering
applications.
High Force Bending
and Compression
Fatigue Tests with
Type LFV 1800 kN
Static and Dynamic Tests
on Rail Components
Type LFV 3000 kN
Machine equipped with cart for
specimen loading with laboratory
crane and with motorized moving
in and out of the testing chamber.
Large base platen with t-slots to
fix components. High force
bending rollers fixed on
cart. Servo-actuator for high
speed testing up to 1 m/sec.
The material testing machine is
equipped with slid-in trolley. The
samples can be placed onto the
trolley with the laboratory crane
and easily be entered into the testing chamber. The multipurpose dynamic testing system is used for
static and dynamic testing of various components in the railway
industry.
Dynamic Fatigue
Compression Tests
on Concrete Samples
with Type LFV 3000 kN
Research on
Various High
Strength Materials
with Type LFV 2000 kN
The testing system is specially designed for static an dynamic fatigue
testing of high resistance concrete
cubes and cylinder in a building
material research institute. The machine is equipped with high force
dynamic rated compression platens and other accessories for universal use.
Dynamic rated testing system with extended t-slot base platen. Machine supplied for general materials testing including large components for the railway
industries. The machine is connected to
a central laboratory hydraulic power pack
Series PAR providing the oil supply for the
LFV 2000 kN, LFV 600/T20000 and w+b
10 MN compression testing machine.
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DYNAMIC
Materials Testing Systems
APPLICATION
Thermo-Mechanical
Fatigue Testing - TMF
TMF is a major cause of component failure in
industrial machinery and structures exposed to
temperature conditions and mechanical loads
that change over time.
TMF affects a range of components, including train wheels
and brakes, aircraft and ship engines, components used in gas
turbines for power generation and compressors for gas and
oil pipelines.
International Standards
ASTM E2368-04
Standard Practice for
Strain Controlled TMF-Testing
•
This practice covers the determination of thermo mechanical fatigue (TMF) properties of
materials under uniaxially loaded strain-controlled conditions. A “thermo mechanical”
fatigue cycle is here defined as a condition where uniform temperature and strain fields
over the specimen gage section are simultaneously varied and independently controlled.
This practice is intended to address TMF testing performed in support of such activities
as materials research and development, mechanical design, process and quality control,
product performance, and failure analysis. While this practice is specific to strain-controlled testing, many sections will provide useful information for force-controlled or stresscontrolled TMF testing.
•
This practice allows for any maximum and minimum values of temperature and mechanical strain, and temperature-mechanical strain phasing, with the restriction being that
such parameters remain cyclically constant throughout the duration of the test. No restrictions are placed on environmental factors such as pressure, humidity, environmental
medium, and others, provided that they are controlled throughout the test, do not cause
loss of or change in specimen dimensions in time, and are detailed in the data report.
•
The use of this practice is limited to specimens and does not cover testing of full-scale
components, structures, or consumer products.
European Standard
The International Organisation for Standardization (ISO) set up a working group to draft a TMF
testing standard. Progress towards achieving a balanced document has been hampered because of the lack of pre-normative R&D. The aim of this study is to coordinate EU input to the
ISO working group and to provide the technical basis that will enable researchers to define all
test-related aspects of the draft standard.
walter+bai Testing Machines
Materials Testing Systems
DYNAMIC
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98
DYNAMIC
Materials Testing Systems
Typical System
Configuration of a
TMF - Testing System
In a TMF test the stress and strain applied to
a specimen are varied independently of the
temperature.
Two main types of tests
are usually conducted
•
•
In-Phase TMF
The maximum value of temperature
and the maximum value of mechanical
strain occur at the same time .
Out-of-Phase TMF
The maximum value of temperature
leads the maximum value of mechanical strain by a time value.
•
•
•
•
•
•
•
Force transducer
Extensometer
Water Cooled High Temperature Grips
Heating Device (induction heating system, radiant or forced air heating)
Temperature Measurement (Pyrometer
or Thermo element)
Digital Closed Loop Controller
Series PCS8000
TMF-Testing Software DION7
(compensation for thermal strain)
Typical System Components
Optional Components
•
•
•
•
High stiffness load frame
Series LFV or Series LFMZ
Alignment fixture
walter+bai Testing Machines
Alignment fixture
Vacuum Chamber
Materials Testing Systems
DYNAMIC
99
A
B
HT- Extensometer
HCG- Grip
C
Thermocouples
Induction coil
Mounting bracket for
HT- Exensometer
D
E
Adjusting device
for induktion coil
External air- cooling
for specimen
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Upper crosshead
Alignment fixture
M
Load cell
N
Adjusting cylider of upper traverse
O
PC-Table
P
Q
R
Lower Crosshead
S
T
Hydraulic actuator
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Materials Testing Systems
100
walter+bai Testing Machines