Generalized incremental algorithm for nonlinear structural analysis

被引：0
|
作者：
Chen, W.-J. [1 ]
Dong, S.-L. [1 ]
Fu, G.-Y. [1 ]
Zhou, D. [1 ]
Hu, J.-J. [1 ]
机构：
[1] Research Center of Space Structures, Shanghai Jiaotong University, Shanghai 200030, China
来源：
| 2001年 / Tsinghua University卷 / 18期
关键词：
Algorithms - Buckling - Finite element method - Matrix algebra;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A unified generalized incremental algorithm (GIA) is formulated herein in detail for the critical and non-critical points. The relationship between the basis of the null space for the augmented matrix and the incremental solution is established so that the incremental solution can be directly obtained from the basis of the null space. The nonlinear FEM based on GIA is implemented in Matlab IDE environment. Numerical results show that the algorithm is correct and effective.
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