摘要
本文借助于摄动法用分段线性加载面讨论了弹塑性结构在准静态载荷下的安定问题,给出了一个普遍适用的不等式,由此导出了广义的米兰(Melan,1938)安定准则以及位移与塑性变形的界,并举例进行了说明。
In this paper, the shakedown problem is dealt with of elastoplastic structures subjected to the quasi-statically varying loads within a given domain. The work-hardening yield surface of the material is assumed to be piecewise linear. A general inequality is presented, according to which, the generalized Melan's shakedown criterion as well as bounds on displacement and plastic strain are derived. Moreover, applications of the derived result are illustrated by a simple example.
出处
《力学学报》
EI
CSCD
北大核心
1991年第6期743-749,共7页
Chinese Journal of Theoretical and Applied Mechanics
基金
国家自然科学基金
关键词
摄动法
准静态载荷
结构
安定
perturbation method, shakedown, quasi-static loading.
