期刊
COMPUTATIONAL MATERIALS SCIENCE
卷 91, 期 -, 页码 91-101出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.commatsci.2014.04.052
关键词
3D woven composite material; Fatigue; Finite element analysis (FEA); Damage mechanisms
资金
- National Science Foundation of China [11272087]
- National High-Technology R&D Program of China (863 Program) [2012AA03A206]
This paper reports a computational scheme on three-dimensional orthogonal woven composites (3DOWC) fatigue behavior under three-point low-cycle bending. Based on three-point cyclic bending fatigue tests, a microstructure model was established at yarn level for predicting the fatigue behaviors. The stiffness degradation and damage morphologies of the 3DOWC were obtained from finite element analysis (FEA) and compared with those from experimental. The stress distribution, energy absorption and damage morphologies in the different parts of the 3DOWC sample were obtained to analyze fatigue failure mechanisms. The influences of warp yarns, weft yarns and Z-yarn systems were discussed. It is found that warp yarn system bears the most cyclic load as well as energy absorption. The stress concentration area was located in the central loading area, especially in the warp yarns that is close to the Z-yarns side and its channels. The triangle damage area was gradually generated from up to down in the stress concentration area as the loading cycle increased. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据