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關(guān)于組合法和復(fù)合法用于計(jì)算含MSD結(jié)構(gòu)的應(yīng)力強(qiáng)度因子的討論

2014-08-08 11:40:12 作者：本站整理來(lái)源：

毛可毅，楊亞寧，于朋濤，馮振宇

中國(guó)民航大學(xué)天津市民用航空器適航與維修重點(diǎn)實(shí)驗(yàn)室，天津， 300300

　　摘要：對(duì)比分析了組合法與復(fù)合法的原理，揭示出兩種方法存在著本質(zhì)上的區(qū)別。本文分別采用了組合法和復(fù)合法，并基于三種邊界條件分解方法針對(duì)含MSD結(jié)構(gòu)的應(yīng)力強(qiáng)度因子計(jì)算，基于FRANC2D的計(jì)算結(jié)果進(jìn)行比對(duì)，給出了計(jì)算MSD裂紋應(yīng)力強(qiáng)度因子更為準(zhǔn)確的方法。

　　關(guān)鍵詞：多位置損傷；應(yīng)力強(qiáng)度因子；組合法；復(fù)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(lián)系方式

　　楊亞寧：597049275@qq.com

責(zé)任編輯：趙澤南

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