Current position: Home >> Scientific Research >> Paper Publications

拉压不同模量材料的参变量变分原理和有限元方法

Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2012-01-01

Journal: 工程力学

Included Journals: CSCD、ISTIC、PKU、EI、Scopus

Volume: 29

Issue: 8

Page Number: 22

ISSN: 1000-4750

Key Words: 拉压不同; 非线性; 参变量变分原理; 互补问题; 有限元

Abstract: 对具有拉伸和压缩不同模量的材料,建立了平面静力问题的参变量变分原理。基于参变量变分原理,并结合有限元方法,将拉压不同模量平面问题转化为互补问题求
   解。经典的Lemke算法被用于求解此互补问题。该方法避免了应力状态的假设和刚度矩阵的更新,算法稳定,且收敛速度快。

Prev One:Symplectic algorithms based on the principle of least action and generating functions

Next One:An efficient computational method for mechanical analysis of bimodular structures based on parametric variational principle