| 具有不同表层夹层扁锥壳的非线性稳定性问题 |
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| 引用本文： | 徐加初,王乘,刘人怀. 具有不同表层夹层扁锥壳的非线性稳定性问题[J]. 华中科技大学学报(自然科学版), 1999, 0(11) |
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| 作者姓名： | 徐加初 王乘 刘人怀 |
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| 作者单位： | 华中理工大学力学系(徐加初，王乘)，暨南大学应用力学研究所(刘人怀) |
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| 摘 要： | 研究了具有不同质、不等厚表层和软夹心的夹层扁锥壳在均布压力作用下的非线性稳定性，利用变分原理导出夹层扁锥壳非线性稳定问题的基本方程，采用修正迭代法得到临界屈曲压力的解析表达式，讨论了几何参数和物理参数对壳体屈曲的影响．
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| 关 键 词： | 不同表层夹层扁锥壳 非线性稳定性 修正迭代法 |
Nonlinear Stability of Shallow Conical Sandwich Shells with Dissimilar Faces |
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| Xu Jiachu Wang Cheng Liu Renhuai. Nonlinear Stability of Shallow Conical Sandwich Shells with Dissimilar Faces[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1999, 0(11) |
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| Authors: | Xu Jiachu Wang Cheng Liu Renhuai |
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| Affiliation: | Xu Jiachu Wang Cheng Liu Renhuai |
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| Abstract: | This paper deals with the problem of nonlinear stability for a shallow conical sandwich shell with dissimilar faces and a soft core under the action of uniform pressure. The fundamental equations and boundary conditions of the nonlinear stability for the shallow conical sandwich shells are derived by means of the calculus of variations. An analytic solution for the critical buckling pressure is obtained by the use of the modified iteration method. The effects of the geometrical and physical parameters on the buckling behavior are discussed. |
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| Keywords: | shallow conical sandwich shells with dissimilar faces nonlinear stability modified iteration method |
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