Micromechanisms of load transfer in a unidirectional carbon fibre-reinforced epoxy composite due to fibre failures: Part 3. Multiscale reconstruction of composite behaviour

被引：56
作者：
Blasslau, S. [1 ,2 ]
Thionnet, A. [1 ,3 ]
Bunsell, A. R. [1 ]
机构：
[1] Ecole Natl Super Mines, Ctr Mat PM Fourt, CNRS, UMR 7633, F-91003 Evry, France
[2] Gaz France Direct Rech 361, F-93211 La Plaine St Denis, France
[3] Univ Bourgogne, F-21078 Dijon, France
来源：
COMPOSITE STRUCTURES | 2008年 / 83卷 / 03期
关键词：
unidirectional composite; multiscale process; failure prediction; micromechanics; fibre failures; pressure vessels;
D O I：
10.1016/j.compstruct.2007.05.004
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
This third article describes a multiscale process which takes into account. the most important microscopic phenomena associated with composite degradation, including fibre fractures and interfacial debonding, overloading of fibres neighbouring a fibre break as well as viscoelastic behaviour of the matrix. The results have been used to accurately predict the macroscopic failure of unidirectional carbon fibre-reinforced epoxy and quantify damage accumulation in pressure vessels made of the same material. The approach described has allowed the acoustic emission activity resulting from fibres breaks to be evaluated and shown how the residual lifetimes of such vessels, when under pressurise, can be predicted. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：312 / 323
页数：12
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