Nonlinear FE analysis practical book

[capablanca]

Does it exists? A nontrivial,practical book explaining
gaps,slidelines,contact,elastoplastics ,FE formulations.Something like
Cook's "Concepts and Applications of Finite Element Analysis" but for non linear?

 

[mloew]

capablanca,

You probably want to take a look at the excellent primer from MSC.Software: When does F not equal Ku? (

http://www.marc.com/Support/Library/F_Ku.pdf)

There have been several good threads on non-linearities in this forum as well.



Best regards,

Matthew Ian Loew

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[capablanca]

Matthew:
Thanks!I downloaded it and it is very well done.But I continue searching for a book that covers non linear FE analysis at a middle level:formulation and examples.

 

[mloew]

capablanca,

You are welcome. How about these publication from NAFEMS (

http://nafems.org/publications/index.html):

How To Tackle Non-Linear Finite Element Analysis


Executive summary:

Preface
NAFEMS is a non-profit making association of organisations using, developing, or teaching the various forms of numerical analysis in common practice.

This booklet is a continuation of the “How and Why…” set of booklets published by NAFEMS, designed to guide both new and experienced analysts in a range of problem types. The booklets are written to introduce various analysis methodologies to both engineering managers and engineers, in a straightforward and informed manner. They are complemented by more detailed publications from NAFEMS; for example, the Introduction to Non-Linear Finite Element Analysis.

Linear finite element analysis has for many years been widely used in the civil and mechanical engineering fields and, in particular, in the construction, automotive, aerospace, nuclear and offshore sectors. Finite element analysis is an integral part of the design cycle in many companies.

Finite element programs that have the capability to solve non-linear problems have also been available for many years, although they were originally used in the more specialised industries typified by nuclear and aerospace engineering. However, with recent advances both in computing power and commercial packages with high quality non-linear capabilities, the application of non-linear finite element analysis to more general engineering has been growing rapidly. This has enabled engineers to obtain a more realistic simulation of their products, which should lead to a more informed design.

This booklet aims to provide inexperienced users of non-linear finite element analyses with a systematic approach to solving such problems successfully. It also provides a concise summary of many aspects of non-linearity that should be of use to the more experienced analyst.

Following an introduction into the common causes of non-linearity the reader is presented with a series of flow charts. These can be used to establish whether a non-linear analysis is necessary, and if so, will enable the relevant aspects of non-linearity to be identified. Guidelines are then presented which will help the reader to undertake a meaningful non-linear analysis.

In keeping with the philosophy of this series of “How To” booklets, theory and jargon are kept to a minimum in the main body of this booklet. This has been achieved by use of an extensive glossary, which, in this booklet, contains an outline of the underlying principles as well as a definition of terminology. In addition to this the booklet makes extensive reference to other, more detailed sources of information in the field of non-linear finite element analysis.




&

Understanding Non-linear Finite Element Analysis Through Illustrative Benchmarks


Executive summary:

The use of Finite Element software has become very widespread in engineering and its range of applicability has greatly increased. Indeed, it is nowadays difficult to find many engineering applications for which the FE method has not been used or at least attempted. With this rapid increase in the use of the FE method, its increasingly automated procedures, and its user-friendly graphical interfaces, the expectations of FE users have risen, sometimes unrealistically. Inexperienced FE users may be under the impression that they can easily tackle non-linear problems without having to gain a good understanding of the background theory.

NAFEMS has published many benchmarks on non-linear problems, usually devised to address a particular type of non-linearity, such as plasticity, geometric non-linearity, etc. Non-linear FE theory has been included in many FE textbooks. This book is written to fill the gap between the benchmark reports and the textbooks on FE theory, by presenting a carefully selected set of non-linear benchmarks and providing a brief coverage of the background non-linear theory covered in the benchmarks.


I do not have these publications, but I have been very impressed with the quality of their other publications and personnel.


Good luck.

Best regards,

Matthew Ian Loew

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.