| 复合材料层合板表面椭圆形分层非线性屈曲分析 |
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| 引用本文： | 息志臣,陈浩然.复合材料层合板表面椭圆形分层非线性屈曲分析[J].大连理工大学学报,1993,33(1):15-21. |
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| 作者姓名： | 息志臣 陈浩然 |
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| 作者单位： | 大连理工大学工程力学研究所
(息志臣)，大连理工大学工程力学研究所(陈浩然) |
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| 摘 要： | 基于修正型Ｈａｈｎ－Ｔｓａｉ非线性本构模型，利用Ｒａｙｌｅｉｇｈ－Ｒｉｔｚ法，研究了复合材料层合板表面椭圆形分层非线性屈曲性态．采用阻尼因子法有效地克服了非线性迭代过程中屈曲应变的振荡现象．数值结果表明：某些层合板椭圆形分层非线性临界应变与线性临界应变有明显差别．
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| 关 键 词： | 复合材料 分层压裂 板 屈曲 |
Nonlinear buckling of sublaminate in composite laminate |
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| Xi Zhichen,Chen Haoran.Nonlinear buckling of sublaminate in composite laminate[J].Journal of Dalian University of Technology,1993,33(1):15-21. |
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| Authors: | Xi Zhichen Chen Haoran |
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| Abstract: | A method is developed for analzing nonlinear buckling of a sublaminate in a composite laminate. The modified Hahn-Tsai nonlinear stress-strain relationships including both transverse and shear nonlinearities are used. The Rayleigh-Ritz method is employed to formulate nonlinear buckling governing equation of a sublaminate. Numerical results indicate that the present nonlinear solutions are different from those by the previous linear approach. |
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| Keywords: | composite laminate separate stratum fracturing buckling of plate non-linear materials |
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