| 八结点等参奇异元断裂分析方法及其在机身壁板中的应用 |
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| 引用本文： | 安俊平,宋庆国.八结点等参奇异元断裂分析方法及其在机身壁板中的应用[J].航空学报,1990,11(4):151-156. |
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| 作者姓名： | 安俊平 宋庆国 |
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| 作者单位： | 飞机结构强度研究所
(安俊平)，陕西飞机制造公司(宋庆国) |
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| 摘 要： | 为了发展一种结构断裂分析的有效工程方法,本文推导并利用八结点等参奇异元结点位移表示的应力强度因子解。对机身加劲壁板进行了断裂分析,结果表明它能较好满足工程要求。
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| 收稿时间： | 1988-11-16; |
A FRACTURE ANALYSIS USING EIGHT-NODE-ISOPARAMETRIC SINGULAR ELEMENTS AND ITS APPLICATION IN FUSELAGE PANELS |
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| Aircraft Structural Strength Research Institute An JunpingShanxi Aircraft Manufacture Company Song Qingguo.A FRACTURE ANALYSIS USING EIGHT-NODE-ISOPARAMETRIC SINGULAR ELEMENTS AND ITS APPLICATION IN FUSELAGE PANELS[J].Acta Aeronautica et Astronautica Sinica,1990,11(4):151-156. |
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| Authors: | Aircraft Structural Strength Research Institute An JunpingShanxi Aircraft Manufacture Company Song Qingguo |
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| Institution: | Aircraft Structural Strength Research Institute An JunpingShanxi Aircraft Manufacture Company Song Qingguo |
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| Abstract: | In order to develop an effective engineering method for fracture analysis of structures, a stress intensity factor solution represented only by the node displacements of a eight-node-isoparametric singular element has been derived and employed in this paper. A fracture analysis of stiffened fuselage panels, a kind of typical aircraft stiuptures, has been carried out. The results show that the engineering purpose can be satisfactorily fulfilled. |
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| Keywords: | isoparametric singular element stiffened panels stress intensity factor |
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