INTENSITY OF THE STRESS SINGULARITY AT THE INTERFACE CORNER BETWEEN A BONDED ELASTIC AND RIGID LAYER

被引:99
作者
REEDY, ED
机构
[1] Sandia National Laboratories, Albuquerque
关键词
D O I
10.1016/0013-7944(90)90113-U
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A stress singularity of type Krδ (δ < 0) exists at the interface corner between bonded elastic quarter planes. The intensity of this stress singularity, referred to here as the free-edge stress intensity factory Kf, characterizes the magnitude of the stress state in the region of the interface corner. The value of Kf has been fully determined for a thin elastic layer (L/h > 20) bonded to rigid adherends and subjected to either transverse tension or a uniform temperature change. Specifically, Kf = σ*h1 -λ A(v), where σ* is a characteristic stress, 2h is layer thickness, and λ -1 is the order of the stress singularity. The parameters 1 -A, and A depend only on Poisson's ratio v, and their values are tabulated and plotted. The reported relation for Kf is applicable to both plane strain and axisymmetric geometries. © 1990.
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页码:575 / 583
页数:9
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