Experimental determination of the true epoxy resin strength using micro-scaled specimens

被引：89

作者：

Hobbiebrunken, Thomas

Fiedler, Bodo ^{[1
]}

Hojo, Masaki

Tanaka, Mototsugu

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Engn Mech, Kyoto 6068501, Japan

[2] Tech Univ Hamburg, Inst Polymer Composites, D-21129 Hamburg, Germany

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2007年 / 38卷 / 03期

基金：

日本学术振兴会;

关键词：

fibres; fracture; mechanical properties; cure; theoretical strength;

D O I：

10.1016/j.compositesa.2006.08.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In fibre reinforced composite materials, the matrix is the continuous phase, but the inter-fibre distance is rather small. The strength and the capability of plastic deformation is controlled by the matrix physics properties as well as by the acting stress state and the stressed volume. A new method is explained to produce fibres from epoxy resin. The single fibre strength was measured according to the standard test method for single fibre tests. The measured strength data of these thin epoxy resin fibres is close (60%) to the theoretical strength. The mechanism of fracture was identified by fractographic studies as cohesive failure initiated at pre-existing voids or void nucleation and growth. Before final rupture, the fibres showed necking and plastic deformation, which is a surprising behaviour for a brittle epoxy resin. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：814 / 818

页数：5

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