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Lismore Session 2 Session 2

Unit Summary

Unit type

UG Coursework Unit

Credit points

12

AQF level

7

Level of learning

Advanced

Unit aim

Addresses the prediction of failure of machine components and structures by computer modelling of stresses and strains using the Finite Element Method (FEM) and by assessment of criteria to predict fracture. The lectures on FEM are focussed on modelling and interpreting results from a commercial software package, rather than the underlying mathematical theory.

Unit content

Introduction to Finite Element Method  

Strain energy, Castigliano's theorem, interpolation functions  

Element types, 2-D analysis types, plate and shell models  

Force and displacement boundary conditions  

Introduction to nonlinear finite element models  

Using commercial finite element software  

Linear-elastic and elastic-plastic fracture mechanics  

Fatigue  

Non-destructive testing

Failure analysis

Learning outcomes

Unit Learning Outcomes express learning achievement in terms of what a student should know, understand and be able to do on completion of a unit. These outcomes are aligned with the graduate attributes. The unit learning outcomes and graduate attributes are also the basis of evaluating prior learning.

GA1: Intellectual rigour, GA2: Creativity, GA3: Ethical practice, GA4: Knowledge of a discipline, GA5: Lifelong learning, GA6: Communication and social skills, GA7: Cultural competence
On completion of this unit, students should be able to: GA1 GA2 GA3 GA4 GA5 GA6 GA7
1 understand how a finite element package works Intellectual rigour Knowledge of a discipline
2 use a commercial finite element package to solve linear static elasticity problems, and to critically evaluate the output Intellectual rigour Creativity Knowledge of a discipline
3 use energy methods to predict by hand the structural deflections and reactions in simple statically indeterminate structures, as a means of checking computed results Intellectual rigour Knowledge of a discipline
4 apply Linear Elastic Fracture Mechanics to analyse brittle fracture Intellectual rigour Knowledge of a discipline
5 analyse simple fatigue failures by applying fracture mechanics principles to fatigue crack growth Intellectual rigour Knowledge of a discipline
6 apply the concepts of Elastic Plastic Fracture Mechanics to simple fracture situations Intellectual rigour Knowledge of a discipline
7 understanding the basics of non-destructive testing techniques. Knowledge of a discipline

On completion of this unit, students should be able to:

  1. understand how a finite element package works
    • GA1: Intellectual rigour
    • GA4: Knowledge of a discipline
  2. use a commercial finite element package to solve linear static elasticity problems, and to critically evaluate the output
    • GA1: Intellectual rigour
    • GA2: Creativity
    • GA4: Knowledge of a discipline
  3. use energy methods to predict by hand the structural deflections and reactions in simple statically indeterminate structures, as a means of checking computed results
    • GA1: Intellectual rigour
    • GA4: Knowledge of a discipline
  4. apply Linear Elastic Fracture Mechanics to analyse brittle fracture
    • GA1: Intellectual rigour
    • GA4: Knowledge of a discipline
  5. analyse simple fatigue failures by applying fracture mechanics principles to fatigue crack growth
    • GA1: Intellectual rigour
    • GA4: Knowledge of a discipline
  6. apply the concepts of Elastic Plastic Fracture Mechanics to simple fracture situations
    • GA1: Intellectual rigour
    • GA4: Knowledge of a discipline
  7. understanding the basics of non-destructive testing techniques.
    • GA4: Knowledge of a discipline

Prescribed texts

  • Recommended but not compulsory: Liu, GR & Quek, SS, 2013, The Finite Element Method: A Practical Course, 2nd edn, Butterworth-Heinemann. ISBN: 0080983561.
Prescribed texts may change in future study periods.