Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 64, Issue 13-14, Pages 2139-2152Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2004.03.007
Keywords
polymer-matrix composites; fracture toughness; delamination; laminates
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A critical review has been performed of the published experimental research concerning delamination onset and growth in composite laminate interfaces of different lay-ups under single-mode loadings. It was found that, depending on the loading mode and interface lay-up, the traditional fracture toughness characterization by unidirectionally reinforced composite tests can lead to marked under- or overestimation of material resistance to crack growth. Empirical models of fracture toughness as a function of delamination front orientation with respect to reinforcement directions of the adjacent laminae have been validated and their applicability range established. (C) 2004 Elsevier Ltd. All rights reserved.
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