This non-linear FE course is intended for delegates interested in using FE to analyse advanced non-linear problems involving material non-linearities, geometric non-linearities and contact problems.
The objectives of this FE course are:
This non-linear FE course is aimed at engineers and scientists who want to gain an understanding of the fundamental theory of non-linear FE analysis and its application to practical problems.
As this is an advanced FE course, a pre-requisite for this course is a reasonable knowledge of linear FE theory and applications. However, no prior knowledge of non-linear FE theory is required. The course is independent of any FE software code.
● Brief Overview of Linear FE analysis
A brief overview of linear FE formulation, numerical algorithms, etc. to provide a foundation for the non-linear formulation.
● General Introduction to Non-linear problems
Classifications of non-linear problems, Comparison of linear and non-linear FE analysis, Non-linear algorithms and procedures, Difficulties in modelling non-linear problems.
Basic plasticity theory, Uniaxial and multi-axial plasticity, Work hardening, FE treatment of plasticity, Solution strategy and accuracy, Discussion of typical practical plasticity applications.
● Creep and Visco-elasticity
Basic theory of creep, FE algorithms for creep problems and time marching, Explicit and implicit time integrations, Discussion of typical practical creep applications.
● Contact Problems
Basic theory of contact mechanics, classification of contact configurations, Hertzian and non-Hertzian contact problems, FE contact algorithms, Penalty methods and Lagrange multipliers, Difficulties in modelling contact problems, Tips and guidelines, Discussion of practical contact problems.
● Geometric Non-linearity
Basic theory of geometric non-linearity, GNL stress-strain definitions, FE algorithms for geometric non-linearities, Arc-length and line-search methods, Solution strategy and accuracy, Discussion of typical GNL problems.
● Brief introduction to other advanced FE Applications
A brief overview of Fracture Mechanics, Fatigue Analysis, Explicit FE codes, Buckling analysis.
Adib Becker is Professor of Mechanical Engineering at the University of Nottingham. He has been teaching Finite Element courses for 25 years, and has created and taught many short courses on FEA, aimed at industry, since 1990. He has written two textbooks on both linear and non-linear FE analysis, and has published over 230 papers on computational mechanics.
Prof. Becker has been involved in many NAFEMS activities, and is the Chairman of the NAFEMS Education and Training Working Group. He is also the Chairman of the IMechE Structural Technology and Materials Committee.
Please note NAFEMS cancellation policy for all UK events is as follows:-
NAFEMS will discuss the possibility of transferring to an alternative event/course, however an administration charge will be applicable.
This policy is subject to change.