%0 Journal Article
%T THE VARIATIONAL PRINCIPLE FOR ELASTIC CREEP-DAMAGE PROBLEM<br>用于弹性蠕变损伤问题的参变量变分原理
%A Zeng Pan Sun Xunfang
%A <br>曾攀
%A 孙训方
%J 力学学报
%D 1992
%I 
%X The parametric vanational principle (PVP) is powerful to solve the nonlinear unspecified boundary problems in continuum mechanics. By the PVP, this paper studies the elastic-creep-damage problem. The proposed principle, a development of optimum control theory, is to minimize a constructed potential energy functional under the constrained conditions which are converted from the creep-damage equations. The mathematical proof of principle is given. Also, the paper quotes the results of creep experiments of 2.2...
%K parametric variational principle
%K creep
%K damage<br>参变量变分原理
%K 蠕变
%K 损伤
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=21BF102EF5436FBC3698FE9BA6D9AE73&yid=F53A2717BDB04D52&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=E4EC39E73004B593&eid=20ED669EB429E15C&journal_id=0459-1879&journal_name=力学学报&referenced_num=2&reference_num=0