Journal
ENGINEERING FRACTURE MECHANICS
Volume 133, Issue -, Pages 112-137Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2014.11.006
Keywords
Adhesive joints; Cohesive zone modeling; Strain rate effects
Categories
Funding
- IGF [338 ZN]
- AiF under the program for the promotion of joint industrial research and development (IGF) by the Federal Ministry of Economics and Technology based on a decision of the German Bundestag
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The mechanical properties of crash-optimized adhesive BETAMATE 1496V are characterized over a wide range of strain rates. The information gathered from the mechanical tests are used for developing a fully rate-dependent constitutive law for cohesive interface elements considering both, the strain rate dependency of the initiation stress and the strain rate dependency of the fracture toughness. The model is calibrated and verified against experimental data for tapered double cantilever beam (TDCB) and tapered end notched flexure (TENF) tests. Finally, the model is validated against quasi-static and dynamic experimental results on an adhesively bonded T-joint. The numerical predictions show good correlation with the experimental results. (C) 2014 Elsevier Ltd. All rights reserved.
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