AN ITERATIVE ALGORITHM FOR LIMIT ANALYSIS WITH NONLINEAR YIELD FUNCTIONS

被引:91
作者
ZOUAIN, N
HERSKOVITS, J
BORGES, LA
FEIJOO, RA
机构
[1] UNIV FED RIO DE JANEIRO,DEPT ENGN MECAN,RIO JANEIRO,BRAZIL
[2] LAB NACL COMPUTACAO CIENTIF,RIO JANEIRO,BRAZIL
关键词
Algorithms - Finite element method - Iterative methods - Nonlinear equations - Nonlinear programming;
D O I
10.1016/0020-7683(93)90220-2
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A mathematical programming algorithm is proposed for the general limit analysis problem. Plastic behavior is described by a set of linear or nonlinear yield functions. Abstract formulations of limit analysis are first considered and a Quasi-Newton strategy for solving the optimality conditions is then sketched. The structure of the problem arising from a finite element discretization is taken into account in order that the algorithm should be able to solve large scale problems.
引用
收藏
页码:1397 / 1417
页数:21
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