疲劳裂纹扩展高分辨率CT分析新进展

基金项目:

航空科学基金(20090756001)

南昌航空大学博士启动基金(EA200908181)

详细信息

New Development of Fatigue Crack Propagation Analysis by High Resolution Computed Tomography

1. Key Laboratory of Nondes uctive Testing(Ministry of Education), Nanchang Hangkong University, Nanchang 330063, China;
2. Flight Automatic Control Research Institute, Aviation In Corporation of China, Xian 710065, China

摘要: 材料疲劳破坏的本质是疲劳裂纹的萌生和扩展,采用高分辨率CT研究疲劳裂纹是当前国际上的研究热点。本文首先总结了高分辨率CT设备的发展现状,指出国内也具备了开展相关研究的设备条件。其次总结分析了高分辨率CT在疲劳裂纹扩展中的应用及国内外研究现状。最后对高分辨率CT在疲劳裂纹中的应用发展趋势进行了展望。
- 高分辨率CT /
- 裂纹扩展 /
- CT尺度 /
- 密度场
Abstract: The essence of fatigue is short crack initiation and propagation, research of fatigue crack by high resolution Computed Tomography (CT) is a research focus in the area of fatigue. In this paper, firstly, the research development of high resolution CT is summarized, and indicates that research of crack is possible in china. Secondly, recent research situation at home and abroad of fatigue crack propagation by high resolution CT are summarized. Lastly, the development directions in the future of CT are pointed out.
- high resolution computed tomography /
- crack propagation /
- CT scale /
- density field