The effect of adhesive thickness on tensile and shear strength of polyimide adhesive

被引：75
|
作者：
Naito, Kimiyoshi [1 ]
Onta, Mutsumi [2 ]
Kogo, Yasuo [2 ]
机构：
[1] Natl Inst Mat Sci, Hybrid Mat Unit, Composite Mat Grp, Tsukuba, Ibaraki 3050047, Japan
[2] Tokyo Univ Sci, Fac Ind Sci & Technol, Noda, Chiba 2788510, Japan
来源：
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2012年 / 36卷
关键词：
High temperature adhesives; Polyimide; Aluminum and alloys; Butt joints; Lap-shear; Stress analysis; Stress distribution; Fracture; SINGLE-LAP JOINTS; LIGHTWEIGHT MATERIALS; ANALYTICAL-MODELS; FRACTURE; BEHAVIOR; FATIGUE;
D O I：
10.1016/j.ijadhadh.2012.03.007
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The effect of adhesive thickness on tensile and shear strength of a polyimide adhesive has been investigated. Tensile and shear tests were carried out using butt and single lap joints. Commercially available polyimide (Skybond 703) was used as adhesive and aluminum alloy (5052-H34) was used as adherends. The tensile strength of the butt joints decreased with increasing adhesive thickness. In contrast, adhesive thickness did not seem to affect the shear strength of single lap joints. The fabricated joints using the polyimide adhesive failed in an interfacial manner regardless of adhesive thickness. The linear elastic stress analysis using a finite element method (FEM) indicates that the normal stress concentrated at the interface between the adherend and the adhesive. The FEM analysis considering the interfacial stress well explains the effect of adhesive thickness on the joint strength. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：77 / 85
页数：9
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