Influence of Physically Nonlinear Deformation on Short-Term Microdamage of a Laminar Material

被引：0
作者：
L. P. Khoroshun
E. N. Shikula
机构：
[1] National Academy of Sciences of Ukraine,S. P. Timoshenko Institute of Mechanics
来源：
International Applied Mechanics | 2004年 / 40卷
关键词：
laminar composite; microdamage; physical nonlinearity; composite matrix;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The structural theory of short-term damage is generalized to the case where the undamaged components of an N-component laminar composite deform nonlinearly. The basis for this generalization is the stochastic elasticity equations for an N-component laminar composite with porous components whose skeleton deforms nonlinearly. Microvolumes of the composite components meet the Huber–Mises failure criterion. Damaged microvolume balance equations are derived for the physically nonlinear materials of the composite components. Together with the equations relating macrostresses and macrostrains of the laminar composite with porous nonlinear components, they constitute a closed-form system. This system describes the coupled processes of physically nonlinear deformation and microdamage. For a two-component laminar composite, algorithms for calculating the microdamage–macrostrain relationship and plotting deformation curves are proposed. Uniaxial tension curves are plotted for the case where microdamages occur in the linearly hardening component and do not in the linearly elastic component
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页码：878 / 885
页数：7
相关论文
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