An advanced model for initiation and propagation of damage under fatigue loading - part II: Matrix cracking validation cases

被引：16
作者：
May, Michael [1 ]
Pullin, Rhys [2 ]
Eaton, Mark [2 ]
Featherston, Carol [2 ]
Hallett, Stephen R. [1 ]
机构：
[1] Univ Bristol, ACCIS, Bristol BS8 1TR, Avon, England
[2] Cardiff Univ, Cardiff Sch Engn, Cardiff CF10 3NB, S Glam, Wales
来源：
COMPOSITE STRUCTURES | 2011年 / 93卷 / 09期
关键词：
Fatigue; Interface elements; Finite Element analysis; Matrix cracking; Acoustic emission; Radiography; LAP BONDED JOINTS; COMPOSITE-MATERIALS; DELAMINATION GROWTH;
D O I：
10.1016/j.compstruct.2011.03.023
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A series of tests were conducted to act as validation cases for the numerical model developed in part I of this paper to predict the initiation and propagation of damage in composite materials. The onset of matrix cracking in [0(2)/0(4)](s) specimens under tension-tension fatigue loading was studied using acoustic emission (AE) and dye-penetrant enhanced X-rays. The number of cracks identified by significant AE hits correlated well with the number of cracks identified by X-rays. Finite Element simulations of the [0(2)/0(4)](s) specimens using the model from part I for cohesive interface elements fatigue loading showed a good correlation with the experimental results. (C) 2011 Elsevier Ltd. All rights reserved.
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收藏
页码：2350 / 2357
页数：8
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