Article
Version 1
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Free-edge Effect on the Tensile Properties of 3D Woven Composites
Version 1
: Received: 5 May 2023 / Approved: 5 May 2023 / Online: 5 May 2023 (14:09:00 CEST)
How to cite: Wu, Z.; Li, C.; Liao, F.; Liu, G.; Zeng, S. Free-edge Effect on the Tensile Properties of 3D Woven Composites. Preprints 2023, 2023050370. https://doi.org/10.20944/preprints202305.0370.v1 Wu, Z.; Li, C.; Liao, F.; Liu, G.; Zeng, S. Free-edge Effect on the Tensile Properties of 3D Woven Composites. Preprints 2023, 2023050370. https://doi.org/10.20944/preprints202305.0370.v1
Abstract
Free-edge effect is one of the factors affecting the mechanical properties of three-dimensional woven composites under tensile load. However, current research is relatively poorly understood regarding the effect of free-edge on the stiffness and strength of the material. This paper aims at examining the influence of free-edge effect on the mechanical properties of 3D woven composites under tension through experimental and simulation mathods. The three-dimensional DIC technique is used to collect the full-field strains on the specimen surface during the test, and the stress-strain differences in different regions in the width direction are analyzed, and the overlap of the curves in each region is found to be high. Experimental studies are conducted on specimens of different widths (within the range of 15-20 mm), and the results indicate that the differences in mechanical properties of 3D woven composites under tension loading in this width range are not significant. A progressive damage finite element model is developed for calculation and compared with experimental results.
Keywords
3D woven composites; damage; edge-effect
Subject
Engineering, Mechanical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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