| 钛合金焊接件疲劳寿命估算 |
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| 引用本文： | 徐建新,明平伟,王旭东. 钛合金焊接件疲劳寿命估算[J]. 中国民航学院学报, 2006, 24(5): 30-33 |
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| 作者姓名： | 徐建新 明平伟 王旭东 |
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| 作者单位： | 中国民航大学机电工程学院,天津300300 |
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| 基金项目： | 中国航空工业第一集团公司601研究所与中国民航大学校科研和教改项目 |
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| 摘 要： | 基于有限单元法理论，采用ANSYS有限元分析软件，对航空发动机中常用钛合金焊接试件进行应力应变分析，得到了焊接接头的等效应力场和应变场，并确定出试件等效应力集中系数Kf，运用局部应力-应变法对光滑焊接试件估算疲劳寿命，并采用成组试验法对计算结果进行验证和分析。
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| 关 键 词： | 钛合金 焊接 疲劳寿命 有限元 应力 |
| 文章编号： | 1001-5000(2006)05-0030-04 |
| 收稿时间： | 2006-02-26 |
| 修稿时间： | 2006-04-05 |
Fatigue Life Evaluation of Titanium Alloy Welding Specimens |
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| XU Jian-xin,MING Ping-wei,WANG Xu-dong. Fatigue Life Evaluation of Titanium Alloy Welding Specimens[J]. Journal of Civil Aviation University of China, 2006, 24(5): 30-33 |
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| Authors: | XU Jian-xin MING Ping-wei WANG Xu-dong |
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| Abstract: | In this paper,the stress and strain of titanium alloy welding specimens often used in aero-engine are analyzed by using the Finite Element Method(FEM).Then the stress field and the strain field of titanium alloy welded joints are obtained,and the effective stress concentration coefficient(Kf) is determined.The fatigue life of typical titanium alloy welding specimens has been successfully calculated by using local stress-strain method,and the theoretical results are verified by comparing with the experimental results. |
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| Keywords: | titanium alloy welding fatigue life finite element method stresses |
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