Fatigue crack propagation rate of CFRP/aluminum adhesively bonded DCB joints with acrylic and epoxy adhesives

被引：16
|
作者：
Imanaka, Makoto [1 ]
Ishii, Kiyoshi [2 ]
Hara, Keisuke [3 ]
Ikeda, Toru [4 ]
Kouno, Yosuke [5 ]
机构：
[1] Osaka Univ Educ, Dept Technol Educ, Osaka 5828582, Japan
[2] Osaka Sangyo Univ, Fac Jr Coll Automobile Ind, Nakagaito Daito City, Osaka 5748530, Japan
[3] Yonago Coll, Natl Inst Technol, Tottori 6838502, Japan
[4] Kagoshima Univ, Dept Mech Engn, Kagoshima 8900065, Japan
[5] Hiroshima Prefectural Technol Res Inst, Western Reg Ind Res Ctr, Agaminai Kure City, Hiroshima 7370004, Japan
来源：
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2018年 / 85卷
基金：
日本学术振兴会;
关键词：
Fatigue crack propagation rate; Double cantilever-beam specimen; Carbon-fiber-reinforced plastics; Adhesively bonded joint; Residual stress; DOUBLE-LAP JOINTS; FINITE-ELEMENT; STEEL JOINTS; BEHAVIOR; GROWTH; PREDICTION; STRENGTH; TESTS;
D O I：
10.1016/j.ijadhadh.2018.06.003
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Recently, structural acrylic adhesives have received increased interest because they can be cured at room temperature. However, there are few studies investigating the strength behavior of CFRP/metal joints bonded with acrylic adhesive, especially under cyclic loading. In this study, the fatigue crack growth rate was measured using adhesively bonded CFRP/aluminum double cantilever beam (DCB) joints made with an acrylic adhesive. To compare fatigue crack growth behavior with heat-cured type adhesive, fatigue testing was also conducted for DCB joints with an epoxy adhesive. For CFRP/aluminum asymmetrical joints, the ratio of the thickness of the lower adherend to the upper adherend is an important factor determining the mode ratio and stress distribution at the crack tip which are affected by the residual stress generated in the curing process. The effect of the thickness ratio for the DCB joints on the fatigue crack growth rate was investigated for DCB joints with both acrylic and epoxy adhesives.
引用
收藏
页码：149 / 156
页数：8
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