期刊
ENGINEERING FRACTURE MECHANICS
卷 76, 期 12, 页码 1785-1799出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2009.03.014
关键词
Interface fracture; Bonded joints; Toughness testing; Polymer matrix composites
类别
资金
- Korea government (MOST) [R01-2007-000-20655-0]
- National Research Foundation of Korea [2007-0055508, R01-2007-000-20655-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Anisotropic/isotropic interfacial cracks with frictional contact along bi-material interfaces are investigated to predict the load-bearing capacity of adhesive-bonded joints. An asymptotic solution for an interfacial crack in an anisotropic/isotropic bi-material is presented. The adhesion strength of composite/steel bonding is evaluated in terms of the energy release rate of an interfacial crack and the fracture toughness of the interface. The applicability of the finite crack-extension strain-energy release rate is validated by comparing the critical finite extension energy release rate of double-lap joints with the measured fracture toughness from bi-material end-notched flexure tests, and the asymptotic solution is compared with finite element analysis results to investigate the range of applicability. (C) 2009 Elsevier Ltd. All rights reserved.
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