• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>High temperature ceramic matrix composites 8 >DAMAGE EVALUATION IN GLASS-CERAMIC MATRIX COMPOSITES VIA COMBINED INFRARED THERMOGRAPHY AND ACOUSTIC EMISSION
【24h】

DAMAGE EVALUATION IN GLASS-CERAMIC MATRIX COMPOSITES VIA COMBINED INFRARED THERMOGRAPHY AND ACOUSTIC EMISSION

机译：红外热成像和声发射相结合的玻璃陶瓷基复合材料损伤评估

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

Infrared thermography (IRT) and acoustic emission (AE) were combined to assess damage initiation and evolution in SiC-fiber reinforced barium osumilite (barium-magnesium-aluminium-silicate, BMAS) glass-ceramic matrix composites under static and fatigue loads. IRT proved powerful in monitoring crack propagation under both types of loadings as well as in identifying the critical damage mechanisms leading to ultimate fracture. IRT also enabled early prediction of the composite's residual life, as early as at 73% of the duration of the final loading cycle. A novel lock-in IRT methodology that overcomes the limitations of the Woehler's curve approach is also proposed herein for the rapid and accurate assessment of the fatigue limit of CMCs by using information from as few tests as on one single specimen. AE enabled real-time monitoring of the fracture behavior with energy- and frequency- related descriptors proving able to discern instances of high stress. AE results were successfully benchmarked across IRT heat dissipation results.
机译：结合红外热成像（IRT）和声发射（AE）来评估在静态和疲劳载荷下SiC纤维增强钡osumilite（钡-镁-铝-硅酸盐，BMAS）玻璃陶瓷基复合材料的破坏开始和演变。事实证明，IRT在监视两种载荷下的裂纹扩展以及识别导致最终破裂的关键破坏机制方面均具有强大的功能。 IRT还可以尽早预测复合材料的剩余寿命，最早达到最终加载周期的73％。本文还提出了一种新颖的锁定式IRT方法，该方法克服了Woehler曲线方法的局限性，可通过使用来自与单个样本一样少的测试信息来快速，准确地评估CMC的疲劳极限。 AE可以使用能量和频率相关的描述符对断裂行为进行实时监控，事实证明能够辨别出高应力实例。 AE结果已成功跨IRT散热结果进行了基准测试。

著录项

  • 来源
  • 会议地点 XIan(CN)
  • 作者

    Konstantinos G. Dassios; Evangelos Z. Kordatos; Dimitris G. Aggelis; Theodore E. Matikas;

  • 作者单位

    Department of Materials Science Engineering, University of Ioannina, 45110 Ioannina,Greece;

    Department of Materials Science Engineering, University of Ioannina, 45110 Ioannina,Greece;

    Department of Mechanics of Materials and Constructions, Vrije Universiteit Brussel, Pleinlaan 2,1050 Brussels, Belgium;

    Department of Materials Science Engineering, University of Ioannina, 45110 Ioannina,Greece;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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