| 复合材料层合板非线性热屈曲分析 |
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| 引用本文： | 息志臣,陈浩然.复合材料层合板非线性热屈曲分析[J].复合材料学报,1993,10(4):43. |
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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, 116023 |
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| 摘 要： | 本文基于高阶变形理论和修正型Hahn-Tsai非线性本构模型,提出一种复合材料层合板非线性热屈曲分析方法.针对四边简支反对称角铺设复合材料层合板,导出了非线性热屈曲临界温度封闭解.数值结果表明:材料非线性能显著降低层合板临界温度.
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| 关 键 词： | 热屈曲 材料非线性 复合材料层合板 高阶理论 |
| 收稿时间： | 1991-12-03 |
NONLINEAR BUCKLING ANALYSIS OF COMPOSITE LAMINATES |
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| Xi Zhichen Chen Haoran.NONLINEAR BUCKLING ANALYSIS OF COMPOSITE LAMINATES[J].Acta Materiae Compositae Sinica,1993,10(4):43. |
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| Authors: | Xi Zhichen Chen Haoran |
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| Affiliation: | Institute of Engineering Mechanics, Dalian University of Technology, Dalian 116023 |
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| Abstract: | A method is presented for carrying out nonlinear thermal buckling anlysis of composite laminates,based on a high-order displacement theory and a modified Hahn-Tsai nonlinear constitutive model.The high-order displacement theory takes account for both transverse shear deformation and transverse normal strain effects. The nonlinear constitutive model includes nonlinearity not only between shear stresses and shear strains but also between transverse normal stresses and strains. A damping parameter approach is used in order to improve the accuracy of solutions. Numerical results show that material nonlinearities significantly affects nonlinear thermal buckling behaviors of composite laminates. |
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| Keywords: | thermal buckling material nonlinearity composite laminate high-order theory |
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