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A nonincremental approach for large displacement problems

✍ Scribed by P.-A. Boucard; P. Ladevèze; M. Poss; P. Rougée

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
745 KB
Volume
64
Category
Article
ISSN
0045-7949

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✦ Synopsis

In structural mechanics, nearly all the current computations for time dependent nonlinear problems (e.g. plasticity, viscoplasticity or damage) use step-by-step methods. In contrast, for small displacement problems, the large time incremental (LATIN) method, introduced by Lade&e [C.r. Acad.

Sci. Paris Ser. II 300,4144 (1985).], is an iterative method which accounts for the whole loading process in a single time increment which is not a priori limited. To give an idea of the step length, several loading cycles (or even several thousand) can be simulated in a single time increment. The performance of the method is Iexcellent in problems with many degrees of freedom or complicated loads [

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