On the transition from shear-driven fibre compressive failure to fibre kinking in notched CFRP laminates under longitudinal compression

被引：125

作者：

Gutkin, R. ^{[1
]}

Pinho, S. T. ^{[1
]}

Robinson, P. ^{[1
]}

Curtis, P. T. ^{[2
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

[2] DSTL, Dept Phys Sci, Porton Down SP4 0JQ, Wilts, England

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

Carbon fibres; Fracture; Fractography; Scanning electron microscopy (SEM); COMPOSITES;

D O I：

10.1016/j.compscitech.2010.03.010

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This paper investigates longitudinal compressive failure in notched unidirectional and cross-ply carbon/epoxy specimens. Dedicated test jigs were developed to observe the failure processes at the microscale. In situ and post-mortem fractography reveals two types of failure mechanisms: (i) shear-driven fibre compressive failure and (ii) kink-band formation. The sequence of events leading to failure and the reasons for shear-driven fibre compressive failure or kink-band formation are investigated and discussed. Those findings are discussed further in a separate paper (Gutkin et al., accepted for publication) [1] where an FE micromechanical model is used to investigate numerically the failure mechanisms found in longitudinal compression. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1223 / 1231

页数：9

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