• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Effects of hydrothermal ageing on the behaviour of composite tubes under multiaxial stress ratios
【24h】

Effects of hydrothermal ageing on the behaviour of composite tubes under multiaxial stress ratios

机译：水热时效对多轴应力比下复合管性能的影响

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

The effects of accelerated hydrothermal ageing on the behaviour of composite tubes under multiaxial stress were experimentally investigated. A set of [+/- 55 degrees](4) tubes were hydrothermally aged at 80 degrees C for 1500 h. An indigenous automated test rig was fabricated to accommodate five stress ratios-0H: 1A, 1H: 1A, 2H: 1A, 4H: 1A, and 1H: 0A. The cyclic test involved, pressurising the tube with 1-min pressure and 1-min no-pressure cycles. The first ply failure points were determined from the axial and hoop stresses. Failure envelopes were constructed at the aforesaid five stress ratios. Fourier transform infrared results show an increase in the intensity of absorbance peaks of the OH stretching bands at the interphase. The scanning electron microscopy micrographs of aged samples show clear debonding between the epoxy resin and the glass fibres, which is a cause of failure. Moisture uptake by the epoxy leads to matrix osmotic cracking, resulting in damage. (C) 2016 Elsevier Ltd. All rights reserved.
机译：实验研究了加速水热老化对复合材料管在多轴应力下的行为的影响。将一组[+/- 55度]（4）管在80摄氏度下水热老化1500小时。制造了本地自动测试设备，以适应五个应力比：0H：1A，1H：1A，2H：1A，4H：1A和1H：0A。涉及循环测试，以1分钟的压力和1分钟的无压力循环对管加压。根据轴向应力和环向应力确定第一层破坏点。以上述五个应力比构造破坏包络线。傅里叶变换红外结果表明，在中间相处，OH伸缩带的吸收峰强度增加。老化样品的扫描电子显微镜显微照片显示出环氧树脂和玻璃纤维之间的清晰脱胶，这是导致失效的原因。环氧树脂吸收水分会导致基质渗透性开裂，从而导致损坏。 （C）2016 Elsevier Ltd.保留所有权利。

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