High resolution tomographic imaging and modelling of notch tip damage in a laminated composite

被引：93

作者：

Wright, P. ^{[1
]}

Moffat, A. ^{[1
]}

Sinclair, I. ^{[1
]}

Spearing, S. M. ^{[1
]}

机构：

[1] Univ Southampton, Sch Engn Sci, Southampton SO17 1BJ, Hants, England

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

Carbon fibres; Matrix cracking; Thermal properties; Finite element analysis (FEA); Synchrotron X-ray tomography; MICROTOMOGRAPHY;

D O I：

10.1016/j.compscitech.2010.04.012

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Synchrotron radiation computed tomography (SRCT) has been used to observe in situ damage growth and enable micromechanical damage characterization in [90/0]s carbon fibre-epoxy composite samples loaded in uniaxial tension to stresses ranging from 30% to 90% of the nominal failure stress. A 3-D finite element model has been constructed to predict crack opening displacements and shear displacements in the 0 degrees plies resulting from thermal residual stress imposed during autoclave cure and from the application of mechanical load. Of particular interest is the demonstration of SRCT as a technique to enable direct, in situ, 3-D, non-destructive damage quantification to assist model development and provide model validation. In addition it has been identified that SRCT has the potential for full field analysis of strain re-distributions during damage growth. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1444 / 1452

页数：9

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