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關于組合法和復合法用于計算含MSD結構的應力強度因子的討論

2014-08-08 11:40:12 作者：本站整理來源：

毛可毅，楊亞寧，于朋濤，馮振宇

中國民航大學天津市民用航空器適航與維修重點實驗室，天津， 300300

　　摘要：對比分析了組合法與復合法的原理，揭示出兩種方法存在著本質上的區別。本文分別采用了組合法和復合法，并基于三種邊界條件分解方法針對含MSD結構的應力強度因子計算，基于FRANC2D的計算結果進行比對，給出了計算MSD裂紋應力強度因子更為準確的方法。

　　關鍵詞：多位置損傷；應力強度因子；組合法；復合法

Discussion on a Compounding Method and Empirical Method Applying on Calculating the Stress Intensity Factor in MSD

Mao Keyi, Yang Yaning, Yu Pengtao, Feng Zhenyu

（Tianjin Key Laboratory of Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, Tianjin 300300, China）

　　Abstract: Compare and analyze the principle of the combination method and composite method, reveal that these two methods exist material difference. We use combination method and composite method respectively in this paper, and calculate the stress intensity factor of MSD structure based on three kinds of decomposition methods of the boundary conditions, and compared with the calculation results based on FRANC2D. At last, provide a more accurate method to calculate the stress intensity factor of MSD crack.

　　Key words: MSD; Stress intensity factor; Combination method; Composite method

　　聯系方式

　　楊亞寧：597049275@qq.com

責任編輯：趙澤南

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