Effect of adhesive thickness on fatigue and fracture of toughened epoxy joints - Part II: Analysis and finite element modeling

被引：42
作者：
Azari, S. [1 ]
Papini, M. [2 ]
Spelt, J. K. [1 ]
机构：
[1] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON M5S 3G8, Canada
[2] Ryerson Univ, Dept Mech & Ind Engn, Toronto, ON M5B 2K3, Canada
来源：
ENGINEERING FRACTURE MECHANICS | 2011年 / 78卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Epoxy; Adhesive; Aluminum; Finite element stress analysis; Fatigue; Fracture; Bondline thickness; BOND THICKNESS; CRACK GROWTH; CONSTRAINT; ALUMINUM; BEHAVIOR; PERFORMANCE;
D O I：
10.1016/j.engfracmech.2010.07.006
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The effect of bondline thickness on the fatigue and fracture of aluminum adhesive joints bonded using a rubber-toughened epoxy adhesive was studied using finite element analysis. The fatigue data of Part I examined the dependence of the fatigue threshold and cyclic crack growth rate on the adhesive thickness under both mode-I and mixed-mode loading. The fracture data of Part I illustrated the relation between the adhesive thickness and the quasi-static crack initiation and steady-state critical strain energy release rates. These experimental trends are explained in terms of the effects of the adhesive thickness and the applied strain energy release rate on the stress distribution in the bondline, the stress triaxiality at the crack tip, and the plastic zone size in the adhesive layer. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：138 / 152
页数：15
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