National Centre for Maritime Engineering & Hydrodynamics Australian Maritime College JEE220 MECHANICS OF SOLIDS Semester 1, 2017 Unit Outline Prof. Kiril Tenekedjiev CRICOS Provider Code: 00586B CONTACT DETAILS Unit coordinator Unit coordinator: Kiril Tenekedjiev Campus: Newnham Email: [email protected] Phone: 03 6324 9724 Room location and number: Swanson Building, G70 Consultation hours: by appointment Other teaching staff Tutor: Howan Kim Campus: Newnham Email: [email protected] Room location and number: RHD Hub, Connell Building Consultation hours: by appointment Tutor: Damon Howe Campus: Newnham Email: [email protected] Room location and number: RHD Hub, Connell Building Consultation hours: by appointment © The University of Tasmania 2017 CONTENTS WHAT IS THE UNIT ABOUT? 2 UNIT DESCRIPTION 2 INTENDED LEARNING OUTCOMES 2 GRADUATE QUALITY STATEMENT 3 ALTERATIONS TO THE UNIT AS A RESULT OF STUDENT FEEDBACK 3 PRIOR KNOWLEDGE &/OR SKILLS 3 HOW WILL I BE ASSESSED? 4 ASSESSMENT SCHEDULE 4 ASSESSMENT DETAILS 4 HOW YOUR FINAL RESULT IS DETERMINED 6 SUBMISSION OF ASSIGNMENTS 7 ACADEMIC REFERENCING 8 ACADEMIC MISCONDUCT 9 WHAT LEARNING OPPORTUNITIES ARE THERE? 10 MYLO 10 RESOURCES 10 ACTIVITIES 12 UNIT SCHEDULE 13 COMMUNICATION 16 FURTHER INFORMATION AND ASSISTANCE 16 Page 1 JEE220 Mechanics of Solids WHAT IS THE UNIT ABOUT? Unit description This is the foundation unit in the study of structures. By applying the knowledge gained in Statics and combining it with the concepts gained in Materials Technology, the students are introduced to fundamental theories and techniques required to analyse the state of stress and the state of strain in any point of structural members subjected to external loads. This knowledge will allow students to perform the engineering calculations required to ensure that a structural member meets strength, stiffness and stability requirements. In addition to learning the theoretical bases of structural analysis, the student will also develop her/his applied structural engineering skills by taking part in a problem based learning activity conducted throughout the semester. Intended Learning Outcomes On completion of this unit, you will be able to: 1. Apply the concept of static equilibrium to determine qualitatively and quantitatively the internal forces and deformations in common structural members (i.e. tension bar, cable, strut, column, shaft, and beam); 2. Demonstrate knowledge of the concepts of stress, strain, and buckling and apply it to meet strength, stiffness and stability design and construction requirements; 3. Recognize common structural members present in real structures and explain their respective functions; 4. Apply knowledge of material science and solid mechanics in the investigation of the mechanical properties of materials and in the design of structural members and report the process and outcomes to a professional standard in oral and written form. Page 2 JEE220 Mechanics of Solids Graduate Quality Statement Successful completion of this unit supports your development of course learning outcomes, which describe what a graduate of a course knows, understands and is able to do. Course learning outcomes are published in the Bachelor of Engineering Course Rules. This document is available on the AMC website. Course learning outcomes are developed with reference to national discipline standards, Australian Qualifications Framework (AQF), any professional accreditation requirements and the University of Tasmania’s Graduate Quality Statement. The University of Tasmania experience unlocks the potential of individuals. Our graduates are equipped and inspired to shape and respond to the opportunities and challenges of the future as accomplished communicators, highly regarded professionals and culturally competent citizens in local, national, and global society. University of Tasmania graduates acquire subject and multidisciplinary knowledge and skills and develop creative and critical literacies and skills of inquiry. Our graduates recognise and critically evaluate issues of social responsibility, ethical conduct and sustainability. Through respect for diversity and by working in individual and collaborative ways, our graduates reflect the values of the University of Tasmania. Alterations to the unit as a result of student feedback None Prior knowledge &/or skills To enrol in this unit you must have successfully completed JEE135 Statics (or an equivalent unit). The knowledge studied in both JEE125 Materials Technology and JEE113 Engineering Design and Communication will be helpful. Page 3 JEE220 Mechanics of Solids HOW WILL I BE ASSESSED? Assessment schedule Assessment task Date due Percent weighting Links to Intended Learning Outcomes Class Test 1 10/04/2017 10 1,2,3,4 Class Test 2 22/05/2017 10 1,2,3,4 Online Weekly Tests Partial delivery 10 1,2,3 Project 28/04/2017 (Oral Presentation) 5/05/2017 (Construction and Testing) 31/05/2017 (Research and Design Report delivery) 20 1,2,4 Final Exam Exam period 50 1,2,3,4 Assessment details Class Test 1 Task description A closed book class test. Supplementary tables and/or formulae would be provided, if needed for the problems. Assessment criteria Detailed assessment criteria will be provided during the semester. Links to unit’s intended learning outcomes 1,2, and 3 Task length 110 minutes Date due Week 7, Monday 10/04/2017 Class Test 2 Task description Assessment criteria Links to unit’s intended learning outcomes Task length Date due A closed book class test. Supplementary tables and/or formulae would be provided, if needed for the problems. Detailed assessment criteria will be provided during the semester. 1,2, and 3 110 minutes Week 12, Monday 22/05/2017 Page 4 JEE220 Mechanics of Solids Online Weekly Tests Task description Assessment criteria Links to unit’s intended learning outcomes Task length Date due A test in the form of online problems set with different data for each student will be assigned weekly using Pearson’s Mastering Engineering tool. The conditions of each assignment will be announced in MyLO. The intermediate and final results have to be delivered through the Mastering Engineering tool. Each problem has a different weight within one weekly test, but each weekly test weights equally towards the final mark. An input result for a problem is accepted as a true one if it is within 2% of the precise result. 1,2, and 3 From 2 to 4 hours weekly Weekly during the semester Project Task description Foam Beam Project (FBP): A basic structural design and construction project is to be conducted. In order to complete this project-based learning activity the student will need to work effectively in a team, apply critical thinking, manage his time and others, and prepare/present technical information professionally. Assessment criteria • Demonstrate and apply theoretical and practical knowledge of Mechanics of Solids and related engineering principles to design a load bearing structure. • Investigate the mechanical properties of non-conventional materials/connections to make/justify design decisions. • Solve problems in the construction and testing phases of a load bearing structure. • Communicate as a team in writing in the form of a technical report and orally in the form of a team presentation. Links to unit’s intended learning outcomes 1,2, and 4 Task length a) Team Oral Presentation: 15 min delivery + 5 min questions (individual mark without peer assessment- 25%) b) Construction and Testing (team mark with peer assessment-25%) c) Research and Design Report: 3000 max - 1500 min words, experimental data, detailed Technical drawings, calculations and bill of materials (team mark with peer assessment- 50%) Date due Week 8, Friday 28/04/2017, activity a) Oral Presentation; Week 9, Friday 5/05/2017, activity b) Construction & Testing; Week 13, Friday 31/05/2017, activity c) Research and Design Report delivery Page 5 JEE220 Mechanics of Solids Final Exam Description / conditions A closed book class test which will cover all aspects of the unit. The primary emphasis will be problem identification, formulation and solution and demonstration of basic fundamentals of mechanics of solids. Supplementary tables and/or formulae would be provided, if needed for the problems. Assessment criteria Detailed assessment criteria will be provided during the semester Links to unit’s intended learning outcomes 1,2,3, and 4 Duration 180 minutes Date The final exam is conducted by the Student Centre in the formal examination period. See the Examinations and Results page on the University’s website (http://www.utas.edu.au/exams/), or access your personal exams timetable by logging into the eStudent Centre - Personal Exams Timetable for specific date, time and location closer to the examination period: http://www.studentcentre.utas.edu.au/eStudentCentre/exams/ti metable.aspx How your final result is determined The grade that you receive for this unit will be determined by a committee of examiners. The raw marks that you receive from each piece of assessable material will be combined in order to determine a letter grade for the unit (see Assessment Schedule for per cent weighting). The raw marks may undergo a scaling process. Assessments will be awarded a grade from HD to NN in accordance to a criterion based grading system where applicable (see BE Course Rules). Where applicable, this will be based on an assessment matrix (to be handed out before the assignment due date), which identifies the level of performance by indicative characteristics associated with each level against each criterion. The criterion based grading system will provide students with the following grades for each assignment, with the final grade obtained by combining the grades of the assessments in line with allocated weighting. Grade HD- to HD+ DN- to DN+ CR- to CR+ PP- to PP+ NN (Fail) To pass the unit, students must: • Achieve a minimum of 25% in on each of the tutorials • Achieve a minimum of 25% in each of the two Class Tests • Achieve a minimum of 40% in the Class Tests overall • Achieve a minimum of 50% overall Page 6 JEE220 Mechanics of Solids Submission of assignments All assignments, reports, etc. must be completed using the template provided on the AMC website, unless otherwise specified by the lecturer. All coursework must have the AMC Assignment Cover Sheet attached. All assignments and reports must be typed and completed using Word, Excel, approved Engineering drawing software and include the relevant theory, illustrations, results, analysis, and conclusion. Group reports must be signed by all participants. Hard copies of the team reports, signed by all participants, must be placed in the lecturer’s assignment box by the due dates (ground floor in the Swanson Building). Electronic submissions are not acceptable (unless otherwise instructed by the lecturer). The assessed work will be returned during lecture or as agreed between the students and the lecturer. Please remember that you are responsible for lodging your coursework on or before the due date. We strongly recommend that you keep a copy. Even in the most ‘perfect’ of systems, items sometimes go astray. Requests for extensions Extensions will only be granted on medical or compassionate grounds. Requests for extensions should be made via email to the lecturer prior to the due date. Medical certificates or other evidence must be included (electronically or the hard copy mailed) and must contain information which justifies the extension sought. Penalties Late assignments which have not been granted an extension will, at the lecturer’s discretion, be penalised by deducting ten per cent of total marks for each day overdue. Assignments submitted more than five days late will normally not be accepted by the lecturer. Failure to adhere with the WH&S standards whilst taking part in any assessed activity that involves field trips and/or that requires the use of UTAS or AMC facilities will result in the following penalties: • first offense - 5% penalty (applicable to the whole team in team projects); • second offense by student (or another member of the same team in team projects) - 20% penalty (applicable to the whole team in team projects); and • third offense - a fail grade in the assessment. Page 7 JEE220 Mechanics of Solids Review of results and appeals If you have questions about, or problems with, your assessment you should discuss this with the following people: (1) The person who marked the assessment. (2) Unit Coordinator. (3) Course Coordinator. (4) Deputy Director (Students and Education), NCMEH. (5) Director, NCMEH. If this does not resolve the issue, you may file a formal appeal. The procedure is given at: http://www.utas.edu.au/exams/results Academic referencing In your written work you will need to support your ideas by referring to scholarly literature, works of art and/or inventions. It is important that you understand how to correctly refer to the work of others, and how to maintain academic integrity. Failure to appropriately acknowledge the ideas of others constitutes academic dishonesty (plagiarism), a matter considered by the University of Tasmania as a serious offence. The University library provides information on presentation of assignments, including referencing styles and should be referred to when completing tasks in this unit: http://utas.libguides.com/referencing Please read the following statement on plagiarism. Should you require clarification please see your unit coordinator or lecturer. Plagiarism Plagiarism is a form of cheating. It is taking and using someone else's thoughts, writings or inventions and representing them as your own; for example, using an author's words without putting them in quotation marks and citing the source, using an author's ideas without proper acknowledgment and citation, copying another student's work. If you have any doubts about how to refer to the work of others in your assignments, please consult your lecturer or tutor for relevant referencing guidelines. You may also find the Academic Honesty site on MyLO of assistance: https://mylo.utas.edu.au/d2l/home/83246 The intentional copying of someone else’s work as one’s own is a serious offence punishable by penalties that may range from a fine or deduction/cancellation of marks and, in the most serious of cases, to exclusion from a unit, a course or the University. Page 8 JEE220 Mechanics of Solids The University and any persons authorised by the University may submit your assessable works to a plagiarism checking service, to obtain a report on possible instances of plagiarism. Assessable works may also be included in a reference database. It is a condition of this arrangement that the original author’s permission is required before a work within the database can be viewed. For further information on this statement and general referencing guidelines, see http://www.utas.edu.au/students/learning/academic-integrity or the Academic Honesty site on MyLO. Academic misconduct Academic misconduct includes cheating, plagiarism, allowing another student to copy work for an assignment or an examination, and any other conduct by which a student: a. seeks to gain, for themselves or for any other person, any academic advantage or advancement to which they or that other person are not entitled; or b. improperly disadvantages any other student. Students engaging in any form of academic misconduct may be dealt with under the Ordinance of Student Discipline, and this can include imposition of penalties that range from a deduction/cancellation of marks to exclusion from a unit or the University. Details of penalties that can be imposed are available in Ordinance 9: Student Discipline – Part 3 Academic Misconduct. Page 9 JEE220 Mechanics of Solids WHAT LEARNING OPPORTUNITIES ARE THERE? MyLO MyLO is the online learning environment at the University of Tasmania. This is the system that will host the online learning materials and activities for this unit. Getting help with MyLO It is important that you are able to access and use MyLO as part of your study in this unit. To find out more about the features and functions of MyLO, and to practice using them, visit the Getting Started in MyLO unit: https://mylo.utas.edu.au/d2l/home/17591 For access to information about MyLO and a range of step-by-step guides in pdf, word and video format, visit the MyLO Student Support page on the University website: http://www.utas.edu.au/mylo/student-support If something is not working as it should, contact the Service Desk ([email protected], phone 6226 1818), or Request IT Help Online: http://servicedesk.its.utas.edu.au/ Resources Required readings You will need the following text available for purchase from the Co-op Bookshop: Hibbeler R.C., Mechanics of Materials, SI Edition (9e), Pearson, 2014 : ISBN 9789810694364 See at http://www.pearson.com.au/9789810694364 You will also need the student access code for the Mastering Engineering tool available from the Persons website. There are two options available and either one will do: • Mechanics of Materials, SI Edition MasteringEngineering with eText (9e) : ISBN 9789814514521 See at http://www.pearson.com.au/9789814514521 • Mechanics of Materials, SI Edition - MasteringEngineering without eText (9e) : ISBN 9789814514545 See at http://www.pearson.com.au/9789814514545 It is important that you have ongoing access to the requisite text. Although the book may be available for loan from the University of Tasmania Library, you are strongly encouraged to purchase a copy of the text as it will be a useful resource throughout your study. Page 10 JEE220 Mechanics of Solids Recommended readings Goodno B.J. and Gere J.M., Mechanics of Materials, Ninth Edition, SI, Cengage Learning, 2016 Eberhart M.E., Why Things Break, 1st Ed, Three Rivers Press, New York USA, 2003 Levy M. and Salvadori M., Why buildings fall down, Norton, 1992 These materials may be useful for developing your knowledge and understanding of the content in this unit, but you are not required to purchase them. When seeking sources of evidence to support your assignment work, you may find these a useful starting point. Equipment, materials, software, accounts Materials to be provided by the student • A non-programmable scientific calculator (e.g. Casio fx-100AU PLUS) is required at all times • Raw materials for the Foam Beam Project Materials to be provided by AMC • Loading platforms for the Foam Beam and metal samples for glue testing. Extra costs • Safety glasses • Lab coat or overalls • Safety shoes Computer hardware & software • Computational software AutoCAD, Inventor, Rhinoceros, MS Word, MS Excel, MathType, Endnote and MATLAB are provided for students in the computer labs. • Mastering Engineering is an online learning environment developed by the text book publisher and will be used for solving and for assessing the tutorial online problem sets. It can also have video solved examples and e-text, depending on the purchasing conditions. See http://www.pearsonmylabandmastering.com/au/ for further information about accessing your course environment. • The Companion Website is additional resource developed by the text book publisher and contains lots of Video Solutions and Animations. The access code for the Companion Website can be used only once and can be found on back of the front cover of the book. See http://www.pearsoned-asia.com/hibbeler/ for further information. Page 11 JEE220 Mechanics of Solids Activities Learning expectations The University is committed to high standards of professional conduct in all activities, and holds its commitment and responsibilities to its students as being of paramount importance. Likewise, it holds expectations about the responsibilities students have as they pursue their studies within the special environment the University offers. The University’s Code of Conduct for Teaching and Learning states: Students are expected to participate actively and positively in the teaching/learning environment. They must attend classes when and as required, strive to maintain steady progress within the subject or unit framework, comply with workload expectations, and submit required work on time. Details of teaching arrangements CLASS Lecture Lecture Lecture Lecture Lecture Lecture DAY Monday, except week 3 Monday, except week 3 Tuesday, except week 8 Friday, only week 2 Friday, only week 2 Thursday, only week 7 TIME LOCATION GROUP 11am-12pm Lecture Th5 All 12pm-1pm Lecture Th5 All 11am-12pm AMC Auditorium (NH.Communal Centre 131. Lecture Rm) All 9am-10am Lecture Th5 All 10am-11am Lecture Th5 All 2pm-3pm Lecture Th7 All Tutorial Wednesday 11am-12pm F45 Group 1 Tutorial Wednesday 12pm-1pm F45 Group 2 9am-10pm F44 Group 3 11am-12pm F44 Group 3 Tutorial Tutorial Thursday except week 7 Tuesday only week 7 Check tutorial groups and lab timetable/groups to identify your designated time and day. Page 12 JEE220 Mechanics of Solids 7 READINGS/ FURTHER INFO TOPIC/ MODULE Ch6, Ch 1, Ch 2 and Ch3 App A and Ch6 Statics Revision: centroid of an area; second order characteristics of an area Statics Revision: principal axis and moments of inertia Statics Revision: external loads and support reactions, resultants of distributed loads, equilibrium of a rigid and deformable bodies; axial force diagram, torque diagram, shear force diagram and bending moment diagram Statics Revision: method of sections for obtaining the equations of the internal loads; graphical method for drawing diagrams Stress: state of stress; average normal stress in an axially loaded member; average shear stress; allowable stress design; limit state design Strain: deformations and state of strain; normal strain; shear strain; small strain analysis Mechanical properties of materials: the tension and compression test; stressstrain diagram; stress-strain behaviour of ductile and brittle materials Mechanical properties of materials: Hooke’s law; strain energy; Poisson’s ratio Ch 3 Mechanical properties of materials: the shear stress-strain diagram; failures due to creep and fatigue Transverse shear: shear in strait members; shear formula Transverse shear: shear flow in build-up members Page 13 Ch 6 Ch 5 Ch 4 Axially loaded members: Saint-Venant’s principle; elastic deformation of an axially loaded member; principle of superposition Axially loaded members: statically indeterminate axially loaded members Axially loaded members: thermal stress; stress concentrations in axially loaded members Torsion: torsional deformation of a circular shaft; torsion formula Torsion: power transmission; angle of twist; statically indeterminate torqueloaded members Torsion: solid noncircular shafts; stress concentrations in circular shafts Bending: Bending deformation of a straight member; flexure formula Bending: unsymmetric bending; composite beams Bending: reinforced concrete beams; stress concentrations in bending members CT1 on Mon 10/04 from 11am till 1pm in Lecture Th5 JEE220 Mechanics of Solids Ch 7 27 March 6 10 April 5 3 April 4 ACTIVITIES DATE 6 March 3 20 March 2 13 March 1 27 February WEEK Unit schedule 13 FBP, activity a) on Friday 28/04 Ch 7, Ch 8 Transverse shear: shear centre for open thin-walled members1 Combined loading: thin-walled pressure vessels Design of beams and shafts: fully stressed beams; shaft design Buckling: critical load; ideal column with pin supports Buckling: columns having various supports Page 14 FBP, activity c) on Friday 31/05 Ch 11 Ch 12 Ch 10 Ch 8 and Ch 9 Combined loading: state of stress caused by combined loadings FBP, Stress transformation: general equations of plane-stress transformation; activity b) principal stresses and maximum in-plane shear stress on Friday Stress transformation: Mohr’s circle-plane stress; absolute maximum shear 05/05 stress Strain transformation: general equations of plane-strain transformation; principal strains and maximum in-plane shear strain Strain transformation: Mohr’s circle-plane strain; absolute maximum shear strain; strain rosettes Strain transformation: material property relationships; theories of failure Deflections of beams: the elastic curve.31 Deflections of beams: slope and displacement by integration Deflections of beams: method of superposition for statically indeterminate beams CT2 on Mon 22/05 Design of beams and shafts: basis for beam design; prismatic and non- from 11am prismatic beam design till 1pm in Lecture Th5 Ch 11 and Ch 13 15 May 12 29 May 11 22 May 10 1 May 9 8 May 8 24 April Mid-semester/Easter break (13-19 April) JEE220 Mechanics of Solids Topics coverer 1. Statics Revision Centroid of an area; second order characteristics of an area; principal axis and moments of inertia; external loads and support reactions, resultants of distributed loads, equilibrium of a rigid and deformable bodies; axial force diagram, torque diagram, shear force diagram and bending moment diagram; method of sections for obtaining the equations of the internal loads; graphical method for drawing diagrams. 2. Stress State of stress; average normal stress in an axially loaded member; average shear stress; allowable stress design; limit state design. 3. Strain: Deformations and state of strain; normal strain; shear strain; small strain analysis. 4. Mechanical properties of materials The tension and compression test; stress-strain diagram; stress-strain behaviour of ductile and brittle materials; Hooke’s law; strain energy; Poisson’s ratio; the shear stress-strain diagram; failures due to creep and fatigue. 5. Axially loaded members Saint-Venant’s principle; elastic deformation of an axially loaded member; principle of superposition; statically indeterminate axially loaded members; thermal stress; stress concentrations in axially loaded members. 6. Torsion Torsional deformation of a circular shaft; torsion formula; power transmission; angle of twist; statically indeterminate torque-loaded members; solid noncircular shafts; stress concentrations in circular shafts. 7. Bending Bending deformation of a straight member; flexure formula; unsymmetric bending; composite beams; reinforced concrete beams; stress concentrations in bending members 8. Transverse shear Shear in strait members; shear formula; shear flow in build-up members; shear centre for open thin-walled members. 9. Combined loading Thin-walled pressure vessels; state of stress caused by combined loadings. 10. Stress transformation General equations of plane-stress transformation; principal stresses and maximum inplane shear stress; Mohr’s circle-plane stress; absolute maximum shear stress. 11. Strain transformation General equations of plane-strain transformation; principal strains and maximum inplane shear strain; Mohr’s circle-plane strain; absolute maximum shear strain; strain rosettes; material property relationships; theories of failure. Page 15 JEE220 Mechanics of Solids 12. Design of beams and shafts Basis for beam design; prismatic and non-prismatic beam design; fully stressed beams; shaft design. 13. Deflections of beams The elastic curve; slope and displacement by integration; method of superposition for statically indeterminate beams. 14. Buckling Critical load; ideal column with pin supports; columns having various supports. Specific attendance/performance requirements Attendance at all assigned class times is expected. You are responsible for all information (both academic and administrative) presented during class times. Should you miss a class for whatever reason it is your responsibility to obtain information and content that was missed. Attendance at all tutorials, laboratory and practical sessions (including any project work) is compulsory. Work Health and Safety (WHS) The University is committed to providing a safe and secure teaching and learning environment. In addition to specific requirements of this unit you should refer to the University’s Work Health and Safety website and policy: http://www.utas.edu.au/work-health-safety/ Communication News and announcements may be posted to MyLO News, and students will be expected to be aware of the content of such posts within 48 hours of them being posted. Students are also expected to check their UTAS email very regularly (at least once a day) for important announcements. Further information and assistance More information with regard to content, assessments, grading, GPA etc. is found in the Course Rules Document, available on the AMC website. If you are experiencing difficulties with your studies or assignments, have personal or life-planning issues, disability or illness which may affect your course of study, you are advised to raise these with the unit coordinator in the first instance. There is a range of University-wide support services available to you including Student Learning Support, Student Advisers, Disability Services, and more which can Page 16 JEE220 Mechanics of Solids be found on the Student Learning Development and Student Advice page of the University website: http://www.utas.edu.au/students/learning Should you require assistance in accessing the Library, visit their website for more information: http://www.utas.edu.au/library/study Page 17 JEE220 Mechanics of Solids
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