Non-linear progressive failure analysis of open-hole composite laminates under combined loading

Date

2013-05-01

Author

Gunel, Murat
Kayran, Altan

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This article presents a finite element-based study of geometrically non-linear progressive failure analysis of open-hole composite laminates, subjected to combined in-plane and out-of-plane loading. Different ply- and constituent-based failure criteria and material property degradation schemes have been coded in Patran command language and a progressive failure analysis code is developed. Progressive failure analyses of the sample composite laminate, with an open-hole, subject to different combined loading are performed to study the effect of the geometric non-linearity on the first ply failure and progression of failure. For mode independent failure criteria, a method is proposed for the determination of separate degradation factors for fiber and matrix failures which are assumed to occur simultaneously. The results show that under combined in-plane and out-of-plane loading, depending on the load case linear analysis can significantly underestimate or overestimate the failure progression compared to the geometrically non-linear analysis even at low levels of out-of-plane loading.

Subject Keywords

Mechanical Engineering, Mechanics of Materials, Ceramics and Composites

URI

https://hdl.handle.net/11511/47858

Journal

JOURNAL OF SANDWICH STRUCTURES & MATERIALS

DOI

https://doi.org/10.1177/1099636213483651

Collections

Department of Aerospace Engineering, Article

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Citation Formats

M. Gunel and A. Kayran, “Non-linear progressive failure analysis of open-hole composite laminates under combined loading,” JOURNAL OF SANDWICH STRUCTURES & MATERIALS, pp. 309–339, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47858.