Journal
COMPOSITES PART B-ENGINEERING
Volume 40, Issue 2, Pages 158-165Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2008.10.006
Keywords
Layered structures; Delamination; Finite element analysis
Funding
- Austrian Aeronautics Research (AAR)/Network for Materials and Engineering by the Austrian Federal Ministry of Economics and Labor
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An approach for the numerical treatment of delamination in laminated composite components is presented. A first ply failure criterion is employed to predict delamination initiation, while delamination propagation is analyzed using linear elastic fracture mechanics. The combination of initiation and propagation criteria yields a conservative estimation of the load earring capacity of a structure. Furthermore, the growth stability, the sensitivity of the results with respect to a change in the interface properties. and the non-linear structural response caused by the delamination growth process are determined. Two structures are investigated, which show the capability of the proposed approach, a curved laminate and a double lap shear test specimen. (C) 2008 Elsevier Ltd. All rights reserved.
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