GENERALIZED VARIATIONAL PRINCIPLE ON NONLINEAR THEORY OF NATURALLY CURVED AND TWISTED CLOSED THIN-WALLED COMPOSITE BEAMS

被引：0
|
作者：
虞爱民
机构：
来源：
Applied Mathematics and Mechanics(English Edition) | 2000年 / 03期
关键词：
generalized variational principle; geometric nonlinear; finite displacement;
D O I：
暂无
中图分类号：
O342 [结构力学];
学科分类号：
080102 ;
摘要：
Naturally curved and twisted closed thin_walled slender beams of composite material undergoing small strains, large displacements and rotations have been investigated, and an incomplete generalized variational function on theory of elasticity with finite displacement is established for these beams with complete constrained boundaries at two ends. The balance equations as well as all boundary conditions concerned have been deduced from functional stationary value condition. The above_mentioned method can also be extended to other various incomplete constrained boundaries conveniently. In addition, the fundamental equations and concerned formulas in the small displacement theory of the beams can be derived by using above results.
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页码：327 / 334
页数：8
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