MEMBERS PRICE: £32
NON-MEMBERS PRICE: £65
P. Jacob & L. Goulding
First Published - July 2002
Hardback, 128 Pages
This Primer is one of many documents produced to help new and
experienced analysts solve a range of problem types. It complements
the books entitled A Finite Element Primer and NAFEMS Introduction
to Non-linear Finite Element Analysis and is the first
NAFEMS’ booklet on explicit analysis.
Explicit finite element codes have become increasingly more accessible to analysts and engineers for the solution of dynamic problems that are both non-linear and transient in nature. The functionality of these codes has also seen rapid development, as new applications are defined and older ones better understood. This primer document attempts to outline the theory behind some of the more common functionality, and, where possible to present objective methods on how best to apply it in analyses.
The document is basically divided into three sections, Chapters 1 and 2 provide an introductory overview of the evolution and philosophy on how an explicit finite element code is arranged. Chapters 3 to 6 describe the basic functionality used in the generation of a model, namely material properties, loading and boundary conditions, contact and results selection. Contact is included as a separate chapter because it was (and still is) one of the main drivers for the development of explicit codes. Chapters 7 and 8 offer some guidance on methods of optimising the computational performance of a model and on alternative solution sequences that can be used to overcome problems of extreme mesh deformation.
The primer is targeted at readers with one to two years of experience using general finite element packages. It is impossible in a short document such as this to cover all aspects of the functionality and subtleties of each and every commercial code. Consequently, we have deliberately kept the subjects of each chapter general in nature. Additionally, we have deliberately refrained from exhaustive theoretical discourse on material models, preferring to indicate texts that treat this subject in a more rigorous manner in a bibliography section. We have tried to bring out the salient points of the topics of each chapter and where possible present a description of what can go wrong with an analysis, how to identify the problems and most importantly how to correct or minimise them. Finally, the primer is not intended as a substitute for the theory and user manuals of commercial programs and we would always recommend that these be consulted as the first point of reference before commencing the solution to a problem.
1.0 Introduction 1
2.0 Theoretical Overview 17
3.0 Material Modelling 35
4.0 Loading and Boundary Conditions 59
5.0 Contact Modelling 71
6.0 Selection of Analysis Results 87
7.0 Model Optimisation 95
8.0 Mesh Adaptivity, Rezoning & Euler Solutions Seqs. 105
9.0 Concluding Remarks 111
10.0 Bibliography 113
11.0 References 117
Members Price: £32 | $49 | €38
Non-Members Price: £65 | $99 | €77
Order Ref: R0085
Date: July 1, 2002