IOSIPESCU SHEAR CHARACTERIZATION OF POLYMERIC AND METAL MATRIX COMPOSITES

被引：33

作者：

PINDERA, MJ ^{[1
]}

IFJU, P ^{[1
]}

POST, D ^{[1
]}

机构：

[1] VIRGINIA POLYTECH INST & STATE UNIV,DEPT ENGN SCI & MECH,BLACKSBURG,VA 24061

来源：

EXPERIMENTAL MECHANICS | 1990年 / 30卷 / 01期

关键词：

D O I：

10.1007/BF02322710

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper outlines the results of an experimental/analytical investigation of deformation and stress fields in the test section of graphite/epoxy and boron/aluminum Iosipescu specimens using high-resolution moiré interferometry and finite-element analysis. Very good correlation between experimental and analysis is demonstrated for the graphite/epoxy speciments. This, in turn, justifies the use of correction factors employed in the previous investigations to eliminate differences in the inital shear moduli obtained from 0-deg and 90-deg losipescu specimens. The significant discrepancies observed in the case of boron/aluminum specimens are attributed to localized yielding at the notch tips caused by the clamping action, the associated in-plane bending effects and changing boundary conditions due to slippage in the grips. © 1990 Society for Experimental Mechanics, Inc.

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页码：101 / 108

页数：8

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