GTS NX - CSPFea

Release Notes
Release Date: August, 2016
Product Ver.: GTSNX 2016(v2.1)
Integrated Solver Optimized for the next generation 64-bit platform
Finite Element Solutions for Geotechnical Engineering
Enhancements
1. Analysis
1.1 Infinite Element
1.2 Display Water Level for 'Define Water Level for Mesh Set'
1.3 Auto Time Step
1.4 Detail Output of *.mec File
1.5 Improvement in Free Field Analysis
2. Post Processing
2.1 Improvement in Save Result Image Files
2.2 Improvement in Probe Results
Integrated Solver Optimized for the next generation 64-bit platform
Finite Element Solutions for Geotechnical Engineering
GTS NX 2016
Enhancements
GTS NX 2016(v2.1) Release Notes
1. Analysis
1.1 Infinite Element (Mesh > Prop./CSys./Func. > Property : Other Property > Infinite)
 Without modeling all region, a model can be reduced considering the area of interests by assigning infinite element on the boundary which does not have significant effects on the
result. All analysis types are applicable except dynamic analysis. (Free field element is used in dynamic analysis.)
 It isn't possible to use all kind of load & boundary condition (Self Weight, Constraint, Nodal Head, Review, etc.) in the node or element of infinite element.
 Infinite Type : Select infinite element type. It is divided into
‘Line’ type and ‘Plane’ type for 2D model and 3D model
respectively.
 Constitutive Behavior : Select Constitutive Behavior of
infinite element. It is divided into ‘From Adjacent Element’
type which adopt material property of adjacent element and
‘User Defined’ type which can assign other material property
for only infinite element. ‘Material’ is directly inputted for
only 'User Defined' type.
[Property of Infinite Element]
[2D/3D Infinite element coordinate system]
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GTS NX 2016
Enhancements
GTS NX 2016(v2.1) Release Notes
1. Analysis
1.1 Infinite Element (Mesh > Element > Infinite)
 Without modeling all region, a model can be reduced considering the area of interests by assigning infinite element on the boundary which does not have significant effects on the
result. All analysis types are applicable except dynamic analysis. (Free field element is used in dynamic analysis.)
 It isn't possible to use all kind of load & boundary condition (Self Weight, Constraint, Nodal Head, Review, etc.) in the node or element of infinite element.
 It is divided into ‘Line, and ‘Plane’ tab according to the type. For the
adjacent element with infinite element, analysis is only for Quad /
Wedge / Hexa typed Low/High order element with 'Plane Strain /
Axisymmetric / Solid' property.
 Polar Coordinate : If adjacent element is high order element, infinite
element is also created as high order and used to set the reference
point of mid-node. User can manually define the location of polar
coordinates system. If Location option is not checked on, central
location of whole model is considered for analysis.
(Infinite element uses different geometrical shape to finite element thus
any mid-node is required in a direction of infinite element regardless of
the order of element and polar coordinates system is needed to set the
reference point. This is important factor which defines the accuracy of
the result so engineer’s decision is important.
 Property : Select Line/Plane type infinite element
[Create/Modify Infinite Element]
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GTS NX 2016
Enhancements
GTS NX 2016(v2.1) Release Notes
1. Analysis
1.2 Display Water Level for 'Define Water Level for Mesh Set' (Static / Slope Analysis > Construction Stage > Stage Set > Define Construction Stage)
 Water level can be checked from the model view even when groundwater level is considered within 'Define Water Level for Mesh Set' option in Construction Stage and Analysis
Case.
 Label show/hide is registered as same as existing option, the ‘Define Water Level for Global’. However, the 'Define Water Level for Mesh Set‘ is only drawn for corresponding mesh
set region.
[Display Water Level for 'Define Water Level for Mesh Set']
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GTS NX 2016
Enhancements
GTS NX 2016(v2.1) Release Notes
1. Analysis
1.3 Auto Time Step (Seepage / Consolidation Analysis > Construction Stage > Stage Set : Stage Type - Consolidation / Fully Coupled Stress Seepage)
 It will automatically choose appropriate time steps for a consolidation or fully coupled stress seepage analysis.
 When the calculation runs smoothly, resulting in very few iterations per step, then the program will choose a larger time step. When the calculation uses many iterations due to an
increasing amount of plasticity, then the program will take smaller time steps.
 Duration : Insert the duration to be analyzed. ‘User Defined Step’ generates steps by dividing
with Step Number. ‘Auto Time Step’ automatically divides defined period with time step.
 Auto Time Step : This function reduces the pore water pressure result errors when loading is
applied in short period of time.
 Initial Time Step : Initial Time Step can be either manually defined by user or calculated
automatically within solver. The automatic calculation formula is as follows:
 Max. Pore Pressure Changes per Step : Input Max. Pore Pressure Changes per step. When pore
pressure changes exceeds the maximum value, step size is automatically reduced and analyzed.
 Ratio of Max Time Step to Initial : Input the maximum value of time step ratio compared to
‘Initial Critical Time Step’.
 Save Step : Select the output method of results. 'Last Increment': Only output results from last
step, 'Every Increment': Output results from all steps.
[Definition of Auto Time Step]
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GTS NX 2016
Enhancements
GTS NX 2016(v2.1) Release Notes
1. Analysis
1.4 Detail Output of *.mec File
 Detail output of Mareial/Property data within *.mec file which is generated during solving.
 Output Material/Property parameters which are included in analysis. However, material for ‘User Supplied Behavior for Shell Interface & User Supplied material’ and property for
‘User Supplied Behavior for Shell Interface’ is not outputted.
[Example of *.mec File]
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GTS NX 2016
Enhancements
GTS NX 2016(v2.1) Release Notes
1. Analysis
1.5 Improvement in Free Field Analysis (Dynamic Analysis > Tools > Free Field Analysis)
 Option which considers water level has been added. Stratum ID inputted in Ground Material can be selected, and it calculates assuming that the water level exists from the
selected stratum. (Analysis > Analysis Case > 1D Ground Response)
 Total Pressure is added. Total Pressure(soil pressure) is calculated using unit weight inputted in material property and the water level condition inputted in analysis case. The unit
weight of water is taken from the value inputted in 'File > Project Setting'. (Result > Result Table > Soil Profile Table)
[Definition of Water Level]
[Total Pressure Output]
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GTS NX 2016
Enhancements
GTS NX 2016(v2.1) Release Notes
2. Post Processing
2.1 Improvement in Save Result Image Files (Result > Etc. > Image File)
 Specific results of all steps are saved when result image files are saved.
 Consider All Steps : Function which allows to Select/Unselect Stage/Step/Result/Component level at the same time. If this option is unchecked, it will Select/Unselect individually.
 All the subordinate components are checked for all stages when the result level is selected.
 Only components are checked for all stages when the component level is selected.
[Add Consider All Steps]
[Result Level Example]
[Component Level Example]
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GTS NX 2016
Enhancements
GTS NX 2016(v2.1) Release Notes
2. Post Processing
2.2 Improvement in Probe Results (Result > Advanced > Probe)
 User can attach tag on the node or element when checking the results. The value can also be reviewed in exponential form and decimal Point can be controlled as well.
[Example if Probe Results]
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