Title: Progressive failure analysis of Z-pinned composite laminates under tension loading

Authors: Xie ShunLi; Zhang CaiLi; Zhang ChunLi; Cai Xin

Addresses: Zhongyuan University of Technology, Zhengzhou, 450007, China ' Zhongyuan University of Technology, Zhengzhou, 450007, China ' Zhongyuan University of Technology, Zhengzhou, 450007, China ' Zhongyuan University of Technology, Zhengzhou, 450007, China

Abstract: Based on micromechanical characters of Z-pinned composite laminate, a finite element model is established to predict progressive failure properties of Z-pinned composite laminate under tension loading. For Z-pinned composite laminates, four failure modes: matrix cracking, matrix compressive failure, fibre breakage and fibre kinking are included in the present model. The calculated failure strength is compared with those obtained from experiments and other model. Failure mode pictures and stress-strain curves under tension load are obtained. The results indicate fibre breakage due to the matrix cracking is the main failure mode in Z-pinned carbon/epoxy composites under tension.

Keywords: Z-pinned composite; finite element analysis; progressive failure; tensile strength.

DOI: 10.1504/IJNM.2018.093479

International Journal of Nanomanufacturing, 2018 Vol.14 No.3, pp.279 - 290

Received: 04 May 2017
Accepted: 26 Oct 2017

Published online: 11 Jul 2018 *

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