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Delamination buckling: A finite element study with realistic delamination shapes, multiple delaminations and fibre fracture cracks
Imperial College London.
Imperial College London.
RISE, Swerea, Swerea SICOMP.
2010 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 41, no 5, 684-692 p.Article in journal (Refereed)
Abstract [en]

This paper presents a finite element model of a carbon fibre composite laminate with multiple delaminations of realistic shape and including fibre fracture cracks loaded under compression. The modelling technique is initially applied on circular and elliptical delaminations of single ply sublaminates, which are compared with existing analytical solutions. The techniques are then applied to models with multiple delaminations of realistic shape and their behaviour in buckling and post-buckling is captured. An inverse method is used to determine the stiffness reduction caused by the damage, and shows significant stiffness reduction caused by peanut shaped delaminations. When fibre fracture cracks are added, their contribution to further stiffness reduction is minimal but they have some significant effects on the buckling shapes. © 2010 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2010. Vol. 41, no 5, 684-692 p.
Keyword [en]
A. Carbon fibre, B. Buckling, B. Impact behaviour, C. Finite element analysis (FEA)
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13177DOI: 10.1016/j.compositesa.2010.01.019OAI: oai:DiVA.org:ri-13177DiVA: diva2:973373
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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Swerea SICOMP
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Composites. Part A, Applied science and manufacturing
Materials Engineering

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