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Title: Experimental assessment of mixed-mode partition theories for generally laminated composite beams
Authors: Harvey, Christopher M.
Eplett, Matthew R.
Wang, Simon
Keywords: Composite materials
Fracture toughness
Mixed-mode tests
Mixed-mode partition
Issue Date: 2015
Publisher: © Elsevier
Citation: HARVEY, C.M., EPLETT, M.R. and WANG, S., 2015. Experimental assessment of mixed-mode partition theories for generally laminated composite beams. Composite Structures, 124, pp. 10-18
Abstract: Three different approaches to partitioning mixed-mode delaminations are assessed for their ability to predict the interfacial fracture toughness of generally laminated composite beams. This is by using published data from some thorough and comprehensive experimental tests carried out by independent researchers (Davidson et al., 2000 and 2006). Wang and Harvey’s (2012) Euler beam partition theory is found to give very accurate prediction of interfacial fracture toughness for arbitrary layups, thickness ratios and loading conditions. Davidson et al.’s (2000) non-singular-field partition theory has excellent agreement with Wang and Harvey’s Euler beam partition theory for unidirectional layups. Although Davidson et al.’s partition theory predicts the interfacial fracture toughness of multidirectional layups reasonably well, overall Wang and Harvey’s Euler beam partition theory is found to give better predictions. In general, the singular-field approach based on 2D elasticity and the finite element method gives poor predictions of fracture toughness.
Description: NOTICE: this is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version will be subsequently published in Composite Structures.
Version: Accepted for publication
DOI: 10.1016/j.compstruct.2014.12.064
URI: https://dspace.lboro.ac.uk/2134/16596
Publisher Link: http://dx.doi.org/10.1016/j.compstruct.2014.12.064
ISSN: 0263-8223
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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