4. O​utlook

Congratulations, you have completed the "Introduction to Elastoplastic Analysis" on-demand course!

C​ompetencies Covered

P​LASkn7 Sketch a stress-strain curve for an elastic-perfectly plastic and bi-linear hardening material showing elastic and plastic modulii.
P​LASco1 Discuss salient features of the inleastic response of metals.
P​LASco2 Explain the terms Isotropic Hardening, Kinematic Hardening and Rate Indepdendency.
P​LASco14 Illustrate typical examples of Local Plastic Deformation and Gross Plastic Deformation.

R​eview Competencies in the Plasticity Technical Area

Relevant resources

Introduction to Non-Linear Finite Element Analysis

NAFEMS Publication by A. Becker, e-Library download, Student Access

In many engineering applications, the behaviour of the structure may depend on the load history or result in large deformations beyond the elastic limit. For such nonlinear problems, the solutions from several load cases cannot be superimposed. Examples of nonlinear applications include elastoplasticity of metals, creep behaviour, buckling and metal forming.

"Introduction to Non-Linear Finite Element Analysis" is a set of course notes from Professor Adib Becker that includes an introduction to non-linear analysis, and then introduces plasticity, creep, geometri non-linearity and contact.

An Introduction to the Use of Material Models in FE

NAFEMS Publication by N. Prinja and A. Puri, e-Library download

The aim of the book is to offer physical understanding of the material modelling features. This book is aimed at engineering students and professional engineers who are familiar with the finite element method and its terminology. It will be assumed that the reader’s experience is limited to carrying out linear stress analysis. A non-specialist reader will be able to follow the booklet and understand the important modelling issues, techniques and assumptions.

Examples have been used to illustrate the modelling techniques and also show the sensitivity of the results to the input data used to describe the material behaviour. The book will be useful to practising engineers as it will explain the physical significance of the various input data that has been used to describe the material behaviour.

F​urther Training

Non-Linear FEA

Online course by T. Abbey

This 6-session, live, online course addresses the important features of non-linear FEA. The course is independent of any specific software – you won’t get bogged down in the details of specific menus and workflows! You will be able to focus on key background and practical hints and tips, covering topics including: Background to non-linear FEA, Nonlinear analysis strategy, Geometric nonlinearity, Material nonlinearity, Contact nonlinearity, Explicit analysis background.

Metals Material Modelling: Plasticity

Online course by A. Becker

The course covers plasticity theories that are widely used to analyse practical engineering applications in metals. Mathematical formulations and equations are intentionally kept to a minimum. Emphasis will be placed on how engineering design incorporates these theories and how the FE method models plasticity. Difficulties encountered by both the FE user and the FE software in modelling plasticity will be highlighted using many examples to demonstrate plastic behaviour and how to assess the accuracy of the FE solutions.