McCartney, L N (2013) Derivations of energy-based modelling for ply cracking in general symmetric laminates. J. Compos. Mater., 47 (20-21). pp. 2641-2673.

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Abstract

This paper is a contribution to the World-wide Exercise on Failure Exercise - Phase III concerning damage mechanics for composite materials. Participants are required to provide a complete description of the methods they use. The objective of this paper is to describe in detail the methodology that has been developed to predict ply crack formation in general symmetric
laminates that are subject to general in-plane loading and to thermal residual stresses. This is achieved by first showing how to predict the stress and displacement distributions associated with a uniformly spaced array of ply cracks in general symmetric laminates for conditions of multi-axial loading. It is then shown how these results can be used to predict the effective
thermo-elastic constants of a laminate having a non-uniform distribution of ply cracks. Finally, energy methods are used to predict progressive ply crack formation during the loading of the laminate. Examples of applications are given in a companion paper.

Item Type:	Article
Keywords:	Composites, laminates, ply cracking, properties, failure
Subjects:	Advanced Materials Advanced Materials > Composites
Identification number/DOI:	10.1177/0021998313492359
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/5995

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