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A Mode I cohesive law characterization procedure for through-the-thickness crack propagation in composite laminates
Journal article   Peer reviewed

A Mode I cohesive law characterization procedure for through-the-thickness crack propagation in composite laminates

Andrew Bergan, Carlos Dávila, Frank Leone, Jonathan Awerbuch and Tein-Min Tan
Composites. Part B, Engineering, v 94, pp 338-349
01 Jun 2016
DOI: https://doi.org/10.1016/j.compositesb.2016.03.071
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Abstract

A. Polymer-matrix composites (PMCs) B. Fracture toughness C. Finite element analysis (FEA) D. Mechanical testing
A method is proposed for the experimental characterization of through-the-thickness damage propagation in multidirectional carbon fiber reinforced polymer laminates. The compact tension specimen configuration is used to propagate damage stably while load and full-field displacements are recorded. These measurements are used to compute the fracture toughness and crack opening displacement from which a trilinear cohesive law is characterized. The proposed method provides a means to extrapolate to steady-state such that the cohesive law is characterized completely and accurately, even when the test specimens used for the characterization are too small to reach steady-state crack propagation. The characterized cohesive law is demonstrated through a prediction of the structural response and fracture of a geometrically-scaled test specimen.

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45 citations in Web of Science
51 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Multidisciplinary
Materials Science, Composites
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