Applied Mathematics and Mechanics (English Edition) ›› 1999, Vol. 20 ›› Issue (3): 262-268.
石志飞, 黄淑萍, 章梓茂
Shi Zhifei, Huang Shuping, Zhang Zimao
摘要: The generalized variational principles of isothermal quasi-static fluid foll-filled elastic solids are established by using Variational Integral Method. Then by introducing constraints, several kinds of variational principles are worked out, including five-field variable, four-field variable, three-field variable and two-field variable formulations. Some new variational principles are presented besides the principles noted in the previous works. Based on variational principles, finite element models can be set up.