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Failure of stitched composite L-joints under tensile loading: experiment and simulation

Michael D.K., Michael D.k. and Tong, L. and Luo, Q. and Sun, X. and Katzos, A. and Rispler, A.R. (2009) Failure of stitched composite L-joints under tensile loading: experiment and simulation. Journal of Reinforced Plastics & Composites, 28 (6). pp. 715-742. ISSN 0731-6844

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This article presents an experimental and numerical investigation into the influence of transverse stitching on failure of composite L-joints under tensile loading. Six unstitched and six stitched L-joint specimens were manufactured and tested under quasi static tensile loading. It was observed that the average measured failure load and the associated crosshead displacement for the stitched L-joint specimens are increased significantly compared to those for the unstitched specimens. Full 3D and 2D plane strain finite element (FE) models were developed to simulate both stitched and unstitched L-joints with an implemented stitch element. The load—displacement curves and results predicted via FE models compare favorably with the experimental results. For the stitched L-joints, it is shown that the observed delamination in the elbow region of the flange can be modeled by using a softening model for epoxy layer.

Item Type: Journal Article
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics
Depositing User: Ms Neha Harakh
Date Deposited: 25 May 2009 03:39
Last Modified: 13 Jul 2012 08:23

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