DEFORMATION OF PHYSICALLY NONLINEAR STOCHASTIC COMPOSITES

被引:2
|
作者
Khoroshun, L. P. [1 ]
Shikula, E. N. [1 ]
机构
[1] Natl Acad Sci Ukraine, SP Timoshenko Inst Mech, UA-03057 Kiev, Ukraine
关键词
composite material; stochastic structure; physical nonlinearity; effective elastic characteristics; stress-strain state;
D O I
10.1007/s10778-009-0159-x
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The studies of the deformation of physically nonlinear homogeneous and composite materials are systematized. Algorithms to determine the effective elastic properties and stress-strain state of particulate, laminated, fibrous, and laminated fibrous composite materials with physically nonlinear components are outlined, and their deformation patterns are studied. Composites are considered as two-component materials of random structure. Their effective properties are determined using the conditional averaging method. The nonlinear equations that allow for the physical nonlinearity of the components are solved by an iterative method. The relationship between macrostresses and macrostrains is established. Macrostress-macrostrain curves of homogeneous and composite materials are analyzed
引用
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页码:1325 / 1351
页数:27
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