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温度-机械混合载荷作用下先进复合材料格栅加筋截顶圆锥壳体的屈曲分析

, PP. 209-214

Keywords: 先进复合材料格栅加筋,截顶圆锥壳体,格栅非均匀分布,热-力载荷,总体稳定性

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Abstract:

基于均匀化原理,推导了考虑沿格栅加筋圆锥壳体随母线变化的等效刚度阵和等效热膨胀系数,并采用前屈曲薄膜理论给出了在温度和均布外压载荷作用下格栅加筋圆锥截顶壳体稳定性分析的总势能表达式。基于最小势能原理得到了该壳体总体失稳的临界载荷值解析表达式,对典型复合材料格栅加筋截顶圆锥壳体的稳定性计算结果与有限元法所得结果相比较,验证了本文中方法的适用性。基于文中提出的方法,通过对不同温度条件下具有不同顶锥角复合材料格栅加筋截顶圆锥壳体热-力屈曲分析结果的讨论,指出温度对复合材料格栅加筋截顶圆锥壳体稳定性的影响程度将随其顶锥角增加而增大。

References

[1]  Vasiliev V V, Rasin A F. Anisogrid composite lattice structures for spacecraft and aircraft applications[J].Composite Structures, 2006, 76: 182-189.
[2]  陈浩然, 周柏华, 白瑞祥. 含多分层损伤的先进复合材料格栅加筋圆柱壳(AGS)的热-机械耦合非线性屈曲分析[J]. 工程力学, 2008, 25(8): 58-63. Chen Haoran, Zhou Baihua, Bai Ruixiang. Thermal-mechanical buckling behavior of advanced composite grid stiffened shell with multi-delaminations[J]. Engineering Mechanics, 2008, 25(8): 58-63.
[3]  Shi S S, Sun Z, Ren M F, et al. Reinforcing design for advanced grid stiffened composite cylindrical shells with cutouts on buckling response[J]. Composites Part B: Engineering, 2013, 44: 26-33.
[4]  Challagulla K S, Georgiades A V, Kalamkarov A L. Asymptotic homogenization modeling of smart composite generally orthotropic grid-reinforced shells: Part Ⅰ-Theory[J]. European Journal of Mechanics A/Solids, 2010, 29: 530-540.
[5]  朱 亮, 蓝友泽, 徐志伟. 复合材料层合板及机翼格栅结构的动态特性优化设计[J]. 复合材料学报, 2012, 29(5): 184-190. Zhu Liang, Lan Youze, Xu Zhiwei. Optimal design of dynamic characteristics for composite laminates and grid-structures of wing[J]. Acta Materiae Compositae Sinica, 2012, 29(5): 184-190.
[6]  彭兴林, 徐元铭, 梁东平. 填充吸波泡沫的碳纤维复合材料格栅结构吸波性能计算[J]. 复合材料学报, 2009, 26(3): 162-167. Peng Xinglin, Xu Yuanming, Liang Dongping. Analysis of absorbing ability of the carbon fiber composite grid structures filled with foams[J]. Acta Materiae Compositae Sinica, 2009, 26(3): 162-167.
[7]  Chen H J, Tsai S W. Analysis and optimum design of composite grid structures[J]. Journal of Composite Materials, 1996, 30(4): 503-534.
[8]  徐孝诚. C/E复合材料网格加劲壳临界外压计算的实验验证[J]. 强度与环境, 1985, 85(3): 35-40. Xu Xiaocheng. Experimental verification for buckling load prediction of C/E composite grid stiffened shells under external pressure[J]. Structure & Environment Engineering, 1985, 85(3): 35-40.
[9]  王 虎, 王俊奎. 在均布外压作用下复合材料三角形网格加筋圆锥壳体总体稳定性分析[J]. 应用力学学报, 1992, 9(3): 44-51. Wang Hu, Wang Junkui. General instability analysis of composite conical shells with triangular grid stiffeners[J]. Chinese Journal of Applied Mechanics, 1992, 9(3): 44-51.
[10]  石姗姗, 孙 直, 任明法, 等. 格栅非均匀分布效应对复合材料格栅加筋圆锥壳体稳定性的影响[J]. 工程力学, 2012, 29(4): 43-48. Shi Shanshan, Sun Zhi, Ren Mingfa, et al. The effect of non-uniform distribution of grid on stability of advanced grid stiffened composite conical shell[J]. Engineering Mechanics, 2012, 29(4): 43-48.
[11]  Shi S S, Sun Z, Ren M F, et al. Buckling resistance of grid-stiffened carbon-fiber thin-shell structures[J]. Composites Part B: Engineering, 2013, 45(1): 888-896.
[12]  陈绍杰. 复合材料设计手册[M]. 北京: 航空工业出版社, 1990: 104-106. Chen Shaojie. Composites design manual[M]. Beijing: Aviation Industry Press, 1990: 104-106.

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