Influence of the Loading System on Mode I Delamination Results in Carbon-Epoxy Composites

被引：4

作者：

Vina, J. ^{[1
]}

Argueelles, A. ^{[2
]}

Lopez, A. ^{[1
]}

Mollon, V. ^{[1
]}

Bonhomme, J. ^{[2
]}

机构：

[1] Univ Oviedo, Dept Mat Sci & Met Engn, Gijon 33203, Asturias, Spain

[2] Univ Oviedo, Dept Construct & Mfg Engn, Gijon 33203, Asturias, Spain

来源：

EXPERIMENTAL TECHNIQUES | 2014年 / 38卷 / 01期

关键词：

Polymer-Matrix Composites; Delamination; Fracture; Mode I; FRACTURE;

D O I：

10.1111/j.1747-1567.2011.00793.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, a modified mechanical grip fitting is used to perform double cantilever beam (DCB) tests. The advantage of using mechanical grips instead of piano hinges or end blocks lies in the fact that the use of adhesive bonding is not required to fix the sample. Adhesive bonding can be an important source of uncertainty and unexpected debondings in fatigue tests. Mechanical fittings are also well suited for high temperature applications where adhesive bonds usually undergo premature failure. An experimental programme has been developed in order to compare the performance of the modified mechanical hinges with classical hinges and end blocks. The highest G(Ic) values and scattering were found for the end block system, while hinges and mechanical hinges furnished similar results. The material used to perform the experimental study was a Hexcel AS4/3501-6 unidirectional laminate.

引用

页码：53 / 58

页数：6

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