期刊
COMPOSITE STRUCTURES
卷 142, 期 -, 页码 286-297出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2016.01.100
关键词
Composite materials; 3D reinforcement; Finite element analysis (FEA); Damage; Mechanical properties
资金
- Engineering and Physical Sciences Research Council, UK [EPSRC EP/P505658/1, EP/K503101/1]
- Early Career Research and Knowledge Transfer Awards from the University of Nottingham
- Engineering and Physical Sciences Research Council [1220995] Funding Source: researchfish
An experimental and numerical investigation was undertaken to characterise the collapse of 3D orthogonal woven carbon fibre composites during the load cases of in-plane tension, in-plane compression and out-of-plane bending. Two different fibre architectures, varying only by the density of through-thickness reinforcement, were investigated. Cantilever beam tests were carried out to isolate two distinct collapse mechanisms, i.e. bending governed and shear governed deformation. A qualitative comparison was made with a similar UD-laminate material. 3D woven composites exhibited significantly reduced delamination. An investigation into the efficacy of an embedded element modelling strategy for in-plane tension, in plane compression and out-of-plane bending load cases was undertaken. The predictions were generally in good agreement with the experimental measurements for both in-plane and out-of-plane loading. (c) 2016 The Authors. Published by Elsevier Ltd.
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