A mixed-mode damage model for delamination growth applied to a new woven composite

被引：12

作者：

Benzerga, D. ^{[1
,2
]}

Haddi, A. ^{[1
]}

Seddak, A. ^{[2
]}

Lavie, A. ^{[1
]}

机构：

[1] Univ Artois, Fac Sci Appl, LAMTI, F-62400 Bethune, France

[2] Fac Gen Mecan, Dept Mecan, Oran 31000, Algeria

来源：

COMPUTATIONAL MATERIALS SCIENCE | 2008年 / 41卷 / 04期

关键词：

composites materials; interface; damage; delamination;

D O I：

10.1016/j.commatsci.2007.05.022

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

In this paper, delamination initiation and propagation of reinforced fibrous composite laminate, in single and mixed mode, are numerically predicted by taking into account the existence of imperfect interfaces between the plies. The bonding conditions between layers are characterised by jumps in displacements which are proportional to the traction stresses. In order to describe the interface damage an approach based on the indirect use of fracture mechanics considering a softening stress-relative displacements law is presented. The accuracy of the predictions is evaluated in single-mode delamination tests, in the mixed-mode bending test, and in a structural configuration consisting of the debonding of a new woven laminated composite reinforced by particles of date cores for orthopedic use. The interface is regarded as being a whole of several interfacial bonds. Each bond is supposed to be made up of three stiffnesses acting in the three directions. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：515 / 521

页数：7

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