Journal
ENGINEERING FRACTURE MECHANICS
Volume 76, Issue 4, Pages 469-478Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2008.10.004
Keywords
Composites; Cohesive zone modelling; Delamination; Damage tolerance; Mode III fracture characterization
Categories
Funding
- Portuguese Foundation for Science and Technology [POCI/EME/57956/2004]
- Fundação para a Ciência e a Tecnologia [POCI/EME/57956/2004] Funding Source: FCT
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A detailed numerical analysis of the Edge Crack Torsion test was performed to verify its adequacy for the mode III interlaminar fracture characterization of composite laminates. A new data reduction scheme based on specimen compliance was proposed. Three-dimensional finite element analyses including a cohesive damage model were performed in order to evaluate the accuracy of perceived G(IIIc) values obtained with the proposed method. Despite some degree of crack length dependency of perceived G(IIIc) acceptable errors could be achieved within a certain crack length range, which is thus recommended for experimental tests. (C) 2008 Elsevier Ltd. All rights reserved.
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