Application of cohesive-zone models to delamination behaviour of composite material

被引：6

作者：

Peng, L. L. ^{[1
]}

Gong, X. J. ^{[1
]}

Wong, K. J. ^{[1
,2
]}

Guillaumat, L. ^{[3
]}

机构：

[1] Univ Bourgogne, Dept Rech Ingn Vehicules Environm, Nevers, France

[2] Univ Teknol Malaysia, Fac Mech Engn, Ctr Composites, Johor Baharu, Malaysia

[3] Arts & Metiers ParisTech, LAMPA, Angers, France

来源：

WORLD JOURNAL OF ENGINEERING | 2012年 / 9卷 / 02期

关键词：

Cohesive-zone models; Delamination of composites; Interface strength; Interface stiffness;

D O I：

10.1260/1708-5284.9.2.109

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The parameters of cohesive elements have to be chosen correctly in the simulation of composite delamination by finite element method: such as interface strength, interface stiffness and shape of cohesive law. The purpose of this work is to investigate their influence on the accuracy of the results obtained. A three-dimensional cohesive-zone model has been established using Ls-dyna to simulate Double-Cantilever-Beam mode I (DCB) and Edge-Notched-Flexure mode II (ENF) tests. The influence of these parameters of cohesive element on the maximum load and the slope of load-displacement curve have been discussed by comparing experimental and numerical results. Four traction-separation laws: bilinear, linear-parabolic, exponential and trapezoidal were considered associated with a large variation of the interface strength and of the initial interface stiffness.

引用

页码：109 / 117

页数：9

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