Mixed mode fracture toughness of adhesively bonded joints with residual stress

被引：13
作者：
Shimamoto, Kazumasa [1 ]
Sekiguchi, Yu [2 ]
Sato, Chiaki [2 ]
机构：
[1] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Engn, Dept Mechanomicro Engn, Midori Ku, 4259 Nagatsuta Cho, Yokohama, Kanagawa 2268503, Japan
[2] Tokyo Inst Technol, Inst Innovat Res, Midori Ku, 4259 Nagatsuta Cho, Yokohama, Kanagawa 2268503, Japan
来源：
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2016年 / 102卷
关键词：
Adhesive joints; Energy release rate; Mixed mode fracture; Residual stress; DOUBLE CANTILEVER BEAM; NOTCHED FLEXURE TEST; ENERGY-RELEASE RATE; INTERLAMINAR FRACTURE; LAMINATION; SPECIMEN; GLASS; BEND;
D O I：
10.1016/j.ijsolstr.2016.10.011
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Adhesively bonded double cantilever beam (DCB) test specimens with residual stress were manufactured. Deforming the adherends during the curing process caused the DCB specimens to curve due to the residual stress and shear load arose at the adhesive layer. Therefore, mixed mode fractures were generated by applying mode I loading to the specimens. The relation between the specimen curvature and the strain energy due to the residual stress was theoretically investigated and the mode II energy release rate for each specimen was calculated using measured specimen curvature. Because the mode I energy release rate for each specimen can be calculated with the DCB test result, the fracture toughness in mixed mode conditions was discussed. By manufacturing the specimens with different residual stresses, mixed mode fracture tests with various mixed mode ratios were conducted and the effect of the mixed mode ratio on the energy release rates was investigated. (C) 2016 Elsevier Ltd. All rights reserved.
引用
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页码：120 / 126
页数：7
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