摘要
推导了考虑材料随温度变化非线性特征的增量形式Ｈａｍｉｌｔｏｎ半解析有限元法的列式；给出了层合板非线性热弹性问题的求解过程；通过算例，研究了复合材料层合板在固化降温过程非线性热应力分布规律，并同线性分析结果进行了比较。结果表明，非线性分析与线性分析结果存在很大差异。
In this paper,the incremental formulation of Hamilton Semi Analytical Method and corresponding computational process for transient nonlinear thermo elastic problem are given. The numerical results on thermo stresses and deformation are obtained for the composite laminates during the cooling down stage of cure process. The results indicate that the nonlinear effect of the temperature dependent mechanical properties is important on residual thermo stress of composite laminates for the cure analysis.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
1998年第4期128-133,共6页
Acta Materiae Compositae Sinica
基金
国家自然科学基金
辽宁省博士启动基金
关键词
层板
热弹性
半解析法
瞬态
层合板
材料非线性
laminates
thermal elasticity
Hamilton semi analytical method
transient thermo elastic problem
nonlinearity
