| 钛合金焊接件疲劳特性评估的当量Kt法 |
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| 引用本文： | 王向明,刘文珽,王忠波. 钛合金焊接件疲劳特性评估的当量Kt法[J]. 北京航空航天大学学报, 2002, 28(1): 102-104. DOI: 10.3969/j.issn.1001-5965.2002.01.026 |
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| 作者姓名： | 王向明 刘文珽 王忠波 |
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| 作者单位： | 北京航空航天大学 飞行器设计与应用力学系 |
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| 摘 要： | 针对先进飞机结构广泛采用的钛合金焊接结构,提出了描述焊接件疲劳特性的当量理论应力集中系数Kt(Kte)的概念;建立了以钛合金材料疲劳性能为基础,通过一组谱载下钛合金焊接件疲劳试验来确定Kte的技术途径.以TC4钛合金氧弧焊试件为例给出了确定Kte的具体方法和结果.
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| 关 键 词： | 钛合金 疲劳 应力集中 焊接件 |
| 文章编号： | 1001-5965(2002)01-0102-03 |
| 收稿时间： | 2000-07-11 |
| 修稿时间： | 2000-07-11 |
Equivalent Kt Method for Evaluating Fatigue Properties of Titanium Alloy Welding Specimens |
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| WANG Xiang ming LIU Wen ting WANG Zhong bo. Equivalent Kt Method for Evaluating Fatigue Properties of Titanium Alloy Welding Specimens[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(1): 102-104. DOI: 10.3969/j.issn.1001-5965.2002.01.026 |
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| Authors: | WANG Xiang ming LIU Wen ting WANG Zhong bo |
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| Affiliation: | Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics |
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| Abstract: | With regard to the Titanium alloy welding structures generally used in advanced aircraft structures,an equivalent theoretical stress concentration coefficient K t (K te ) was introduced to describe the fatigue property of welding specimen. On the basis of the fatigue properties of Titanium alloy specimens,a technological approach used to determine K te is established through fatigue testing for the Titanium alloy welding specimen under a spectrum load. The detailed process determining K te and some useful results are given by taking the TC4 titanium alloy oxy arc welding specimen for example. |
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| Keywords: | Titanium alloys fatigue stresses welding specimenfficient |
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