Stress Intensity Factors near the Cracks on the Edges of Openings in Composite Plates

被引：0
|
作者：
V. P. Netrebko
机构：
[1] Lomonosov Moscow State University,Institute of Mechanics
来源：
Mechanics of Composite Materials | 2001年 / 37卷
关键词：
crack; stress intensity factor; photoelasticity method; elasticity; linear viscoelasticity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on the photoelasticity method, the behavior of stress intensity factors (SIFs) near cracks propagating from the edges of openings in plates made of elastic and linearly viscoelastic fibrous composite materials is studied. It is found that the relative value of the SIF, K1/K10 (K10=σ0√πc), near the crack tips on the edges of openings in composite plates is a function of the ratio c/R, whose numerical values depend on the mechanical properties of materials of the plates. Using the quasi-elastic method for solving the viscoelastic problems, the effect of viscoelastic properties of the plate material on the value of K1/K10 is estimated. It is shown that the values of the function K1(t)/>/K10 near the cracks on the opening edges in plates made of linearly viscoelastic fibrous composites grow under creep.
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页码：107 / 114
页数：7
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