...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Plastics, Rubber and Composites >Experimental and numerical investigation into fatigue damage mechanisms in multifibre microcomposites
【24h】

Experimental and numerical investigation into fatigue damage mechanisms in multifibre microcomposites

机译：多纤维微复合材料疲劳损伤机理的实验和数值研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Polarised light microscopy has been used to investigate the influnce of stress level, interfibre spacing, and fibre-matrix adhesion on the fatigue micromechanisms in carbon-epoxy model composites consisting of a planar array of five intermediate modulus carbon fibres. It was found that an increase in fatigue stress results in an increase in the number of fibre breaks, a more coordinatefibre fracture pattern as a result of fibre interaction, and extensive interfacial damage. In addition, it was shown that a smaller interfibre spacing results in a higher level of fibre-interaction. Finally, in the case of surface treated carbon fibres (good fibre-matrix adhesion), a more coordinated fibre failure pattern was observed owing to stronger fibre-fibre interaction, whereas in the case of untreated carbon fibres (poor fibre-matrix adhesion), extensive debonding was observed which resulted in a more random fibre failure pattern. Finally, the experimental results were validated by means of a three-dimensional finite element analysis.
机译：偏光显微镜已被用来研究应力水平，纤维间间距和纤维-基质粘附对由五种中模量碳纤维平面排列组成的碳-环氧树脂模型复合材料疲劳微观机制的影响。已经发现，疲劳应力的增加导致纤维断裂的数量增加，由于纤维相互作用而导致更多的配位纤维断裂模式，以及广泛的界面损伤。另外，已经表明，较小的纤维间间距导致较高水平的纤维相互作用。最后，对于经过表面处理的碳纤维（良好的纤维-基体附着力）而言，由于较强的纤维-纤维相互作用，观察到了更为协调的纤维破坏模式，而对于未经处理的碳纤维（较差的纤维-基体附着力），观察到广泛的脱粘，这导致了更随机的纤维破坏模式。最后，通过三维有限元分析验证了实验结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号