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Contact search strategies for FEM simulation of the blow molding process
Author(s) -
Wang Song,
Makinouchi Akitake
Publication year - 2000
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(20000610)48:4<501::aid-nme887>3.0.co;2-s
Subject(s) - process (computing) , finite element method , molding (decorative) , stability (learning theory) , computer science , mathematical optimization , algorithm , engineering , mechanical engineering , mathematics , structural engineering , machine learning , operating system
In this paper, the efficiency and accuracy of contact search algorithms for the blow molding simulation were discussed. In order to increase the efficiency of the contact search, we proposed and implemented three kinds of global search algorithms and compared them with two existing methods in terms of both formulation and CPU time. The proposed sorted moving box method was finally proved to be the most efficient one, without loss of stability. To increase the accuracy, a contact–tolerance–adjustable local search algorithm was also proposed. Successful simulation of the stretch blow molding process was given as an example. Copyright © 2000 John Wiley & Sons, Ltd.