• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Detection of cracks in ceramic matrix composites based on surface temperature
【24h】

Detection of cracks in ceramic matrix composites based on surface temperature

机译：基于表面温度的陶瓷基复合材料裂纹检测

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

Ceramic matrix composites are prepossessed at high temperatures and experience significant residual thermal stresses upon cooling to room temperature. These stresses often result in matrix creaking prior to the application of external loads. Matrix cracks may also appear as a result of thermomechanical loading. It is important to detect these matrix cracks using a nondestructive technique. The method proposed in this paper is based on measurements of the surface temperature of a ceramic matrix material subjected to cyclic stresses. The elevated surface temperature is due to friction between the fibers and the matrix that occurs in the presence of bridging matrix cracks. The solution presents a relationship between surface temperature and matrix crack spacing that can be used to identify the extent of the damage.
机译：陶瓷基复合材料被置于高温下，冷却至室温后会承受明显的残余热应力。这些应力通常会导致在施加外部载​​荷之前基体产生龟裂。由于热机械载荷，基体也会出现裂纹。使用非破坏性技术检测这些基体裂纹非常重要。本文提出的方法是基于对陶瓷基体材料承受循环应力的表面温度的测量。表面温度升高是由于纤维与基质之间的摩擦，这种摩擦是在存在桥接基质裂纹的情况下发生的。该解决方案提出了表面温度与基体裂纹间距之间的关系，可用于确定损坏程度。

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