| 复合材料层板结构在冲击载荷作用下非线性动力分析 |
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| 引用本文： | 素瑞芬,胡茂和,孙淑苓,沈成武.复合材料层板结构在冲击载荷作用下非线性动力分析[J].航空学报,1990,11(11):556-560. |
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| 作者姓名： | 素瑞芬 胡茂和 孙淑苓 沈成武 |
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| 作者单位： | 直升机设计研究所
(素瑞芬，胡茂和，孙淑苓)，武汉大学(沈成武) |
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| 摘 要： | <正> 复合材料结构非线性动力分析具有一定难度,本文在这方面作了些探索,以期为复合材料结构在冲击载荷作用下非线性动力分析提供一种途径。本文方法所编制的计算程序计算两个算例。第二个算例,是某飞机水平尾翼在特殊飞行中,承受瞬态冲击分布外压载荷,其作用时间只有几毫秒。用此法计算得到的响应与试验结果比较吻合。
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| 关 键 词： | 冲击载荷 变动的拉格朗日方法 增量 层板结构 |
NONLINEAR DYNAMIC ANALYSIS OF LAMINATED COMPOSITE STRUCTURE UNDER IMPACT LOADS |
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| Chinese Helicopter Research and Development Institute Qin Ruifen Hu Maohe and Sun Shulin Wuhan University Shen Chengwu.NONLINEAR DYNAMIC ANALYSIS OF LAMINATED COMPOSITE STRUCTURE UNDER IMPACT LOADS[J].Acta Aeronautica et Astronautica Sinica,1990,11(11):556-560. |
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| Authors: | Chinese Helicopter Research and Development Institute Qin Ruifen Hu Maohe and Sun Shulin Wuhan University Shen Chengwu |
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| Institution: | Chinese Helicopter Research and Development Institute Qin Ruifen Hu Maohe and Sun Shulin Wuhan University Shen Chengwu |
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| Abstract: | Hill's plastic theory of anisotropic materials is used and nonlinear finite element equations of laminated plate structure by Updated Lagrange method is set up in this paper. These dynamic equations are solved by incremental and Wilson-θ method. Furthermore, using a special technique to deal with pressure-boundary conditions, it also considers transverse shear and material extension-compression moduli. Finally, the local failure of strength of anisotropic materials is discussed. |
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| Keywords: | impact-load Updated-Langrange method incremental laminated plate structure |
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