非线性弹性动力学率型广义变分原理及子域原理  

Rated Generalized Sub-Region Variational Principles in Nonlinear Elastodynamics

作　　者：赵国桥[1] 

机构地区：[1]中石化北京设计院

出　　处：《应用数学和力学》1993年第12期1069-1075,共7页Applied Mathematics and Mechanics

基　　金：中国石化北京设计院资助课题

摘　　要：本文基于拖带坐标描述和S-R分解定理,建立了包含速度梯度、动量、速度、应力和应变率等五类独立场变量的非线性弹性动力学率型广义变分原理和广义子域混合杂交变分原理.In this paper, Lhe rated generalized sub-rogion mixed and hybrid variational principles in nonlinear elastodynamics aro consiructej on the basis of co-moving coordinate description and S-R djcomposition theorem, which contain five independent arguments, or velocity gradient, momsntum, velocity, stress and strain rate.

关 键 词：弹性动力学 非线性 变分原理 

分 类 号：O343.5[理学—固体力学]