摘要
在对Ｈａｈｎ－Ｔｓａｉ模型和Ｊｏｎｅｓ－Ｎｅｌｓｏｎ模型进行分析研究的基础上，给出了将非线性本构方程用于工程计算的程序和方法。对于Ｊｏｎｅｓ－Ｎｅｌｓｏｎ模型，提出了较之Ｊｏｎｅｓ方法更为合理有效的模型参数确定方法；并在模型扩充实用时引入了应力叠加原理，从而保证了模型在全部应力空间的连续性和适用性。笔者还同时给出了工程计算的计算机程序主框图和部分运行结果。
Based on the research of Hahn-Tsai and Jones -Nelson nonlinear theories, an engineering method for calcnlation of the nonlinear stress-strain response of fiber-reinforced unidirectional laminas and laminates, under multiaxial loading is established' On the use of Jones-Nelson eqnation, the anthor presents a new approach to defermine constants of the equation, which is more reasonable and effective than Joncs-Nelson's, Moreover,stress superposition theorein was successfully introdnced to the equation extensions which ensure continuity and being applicable for whole stress-space to Jones-Nelson equation. The main flow charts and partial tesults of compnter programs were also given in this paper, and it has practical significance for engineers to apply the nonlinear constitutive eqnations in structure design.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
1994年第1期106-111,共6页
Journal of Mechanical Engineering
基金
天津市二十一世纪-青年科学基金
关键词
复合材料
本构方程
非线性
Composite materials, stress-Strain relationship, Nonlinear behavior
