| 结构疲劳可靠性设计的等损伤设计方法 |
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| 引用本文： | 熊峻江.结构疲劳可靠性设计的等损伤设计方法[J].北京航空航天大学学报,1999,25(5):554-557. |
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| 作者姓名： | 熊峻江 |
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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： | 简述了疲劳可靠性设计的发展历程;提出用于结构疲劳可靠性设计的"等损伤设计"概念与原理,进行了实验验证.实验表明:按此方法设计构件的零件能在设计寿命下,同时发生破坏;在给定寿命下,零件几乎"等损伤".从而证明按此方法对结构进行疲劳可靠性设计完全可行,且易为实际工程所应用.根据此设计方法,对结构进行疲劳可靠性设计,更能保证结构使用安全、可靠、重量轻.
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| 关 键 词： | 疲劳寿命 应力集中 可靠性 等损伤设计 p-S-N曲线 γ-p-S-N曲线 |
| 收稿时间： | 1998-04-23 |
| 修稿时间： | : 1998-04-23 |
Equal Damage Design Method for Fatigue Reliability Design of Structure |
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| Xiong Junjiang.Equal Damage Design Method for Fatigue Reliability Design of Structure[J].Journal of Beijing University of Aeronautics and Astronautics,1999,25(5):554-557. |
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| Authors: | Xiong Junjiang |
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| Institution: | Beijing University of Aeronautics and Astronautics,Dept. of Flight Vehicle Design and Applied Mechanics |
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| Abstract: | The brief development course of fatigue reliability design is reviewed. The concept and principle of equal damage design for fatigue reliability design of structure are proposed. Then the test is carried out in order to validate this design principle, and it is indicated that the parts of a structure designed according to the equal damage design method have the same damage at the given life and break down at the same time. And so it is feasible and easy for the structure to be designed by means of the method presented in this paper, and this method can be conveniently used by the engineers. On the basis of this fatigue reliability design method, the structure may be designed to be safe, reliable and light. |
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| Keywords: | fatigue life stress concentration reliability equal damage design p-S-N curve γ-p-S-N curve |
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