An analytical analysis of energy release rate in bonded composite joints in a mode i condition

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DOIResolve DOI: http://doi.org/10.1016/j.compositesb.2012.01.082
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TypeArticle
Journal titleComposites Part B: Engineering
ISSN1359-8368
Volume44
Issue1
Pages704713; # of pages: 10
SubjectAdhesive bond; Analytical analysis; Composite joint; Critical strain energy; Double cantilever beam models; Peel stress; Short beams; Test case; Theoretical result; Theoretical solutions; Mathematical techniques; Joints (structural components)
AbstractA complete analytical solution of mode I strain energy release rate, G I, was derived for bonded composite joints based on an augmented double cantilever beam (DCB) model. Good agreement was obtained between current and existing comparable theoretical solutions for this joint with a long adhesive bond. For a short bond length joint, the current solution can greatly reduce the degree of the mathematical singularity encountered in analyses of thick, short beams and avoid it entirely for thin, long beams. A correlation between the current theoretical and associated ASTM solutions was established. A bonded DCB laminate test case was conducted, and good agreement was obtained between the experimental and current theoretical results. Commentary was included regarding the tested critical strain energy release rate and the deduced critical adhesive peel stress. © 2012 Published by Elsevier Ltd.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace (AERO-AERO)
Peer reviewedYes
NPARC number21269582
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Record identifier917d4eb8-73ab-4d97-8d81-6d928a5869fb
Record created2013-12-13
Record modified2016-05-09
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