Journal
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
Volume 129, Issue -, Pages 167-176Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2017.09.002
Keywords
Adhesion; Damage criteria; Delamination; Mixed-mode fracture; Interface; Cohesive zone model; Traction-separation relations
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Funding
- National Science Foundation Nanosystems Engineering Research Center on Nanomanufacturing Systems for Mobile Computing and Mobile Energy Technologies (NASCENT)- NSF EEC [1160494]
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A semi-analytical methodology is developed to study mixed-mode interface fracture that combines beam theory and cohesive zone interactions. The method is validated with predictions from a non-linear commercial finite element package and results in the literature. Compared to commercial finite element packages, the method is significantly faster (>1000X) and robustly converges. Scaling equations are extracted that predict load, crack length, damage zone length and mode-mix. These equations can be used to extract cohesive zone interactions from experimentally obtained load-displacement data. (C) 2017 Elsevier Ltd. All rights reserved.
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