RESIDUAL SURFACE STRESSES IN LAMINATED CROSS-PLY FIBER-EPOXY COMPOSITE-MATERIALS

被引：44

作者：

GASCOIGNE, HE

机构：

[1] California Polytechnic State University, San Luis Obispo, 93407, CA

来源：

EXPERIMENTAL MECHANICS | 1994年 / 34卷 / 01期

关键词：

D O I：

10.1007/BF02328439

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Residual (curing) stresses in a cross-ply laminated plate are related to the strains released when individual plies are separated. Released displacements are determined using high-sensitivity moire interferometry and linearized strain-displacement equations are used to determine residual strains. Elastic orthotropic stress-strain relations are used to calculate residual stresses remote from free-edges of a [90(20)/0(20)/90(20)] graphite-epoxy cross-ply panel. The measured strains compare favorably with those predicted by laminated plate theory. In a second example, the circumferential and radial residual strains and stresses at the end-section of a thick-walled cross-ply graphite-epoxy cylinder are determined.

引用

页码：27 / 36

页数：10

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