| 双轴载荷作用下柱壳的塑性屈曲 |
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| 引用本文： | 苑世剑,盖秉政. 双轴载荷作用下柱壳的塑性屈曲[J]. 哈尔滨工业大学学报, 2004, 36(8): 1071-1073 |
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| 作者姓名： | 苑世剑 盖秉政 |
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| 作者单位： | 1. 哈尔滨工业大学,材料科学与工程学院,黑龙江,哈尔滨,150001
2. 哈尔滨工业大学,航天学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 哈尔滨工业大学跨学科交叉性研究基金资助项目(HIT.MD2001-14). |
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| 摘 要： | 采用各向异性刚线性硬化模型研究了柱壳的塑性屈曲问题，当把本构方程的起算点设置在线硬化的起始位置时，本构方程具有线性形式，基此建立了柱壳屈曲的基本方程，并用它求解了四边简支柱壳在双轴载荷作用下的屈曲问题，在弱各项异性情况下获得了最小屈曲载荷的解析表达式．
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| 关 键 词： | 双轴载荷 柱壳 塑性屈曲 各向异性 皱纹 塑性失稳现象 |
| 文章编号： | 0367-6234(2004)08-1071-03 |
| 修稿时间： | 2003-12-10 |
Plastic buckling of cylindrical shells under biaxial load |
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| YUAN Shi-jian,GAI Bing-zheng. Plastic buckling of cylindrical shells under biaxial load[J]. Journal of Harbin Institute of Technology, 2004, 36(8): 1071-1073 |
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| Authors: | YUAN Shi-jian GAI Bing-zheng |
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| Affiliation: | YUAN Shi-jian~1,GAI Bing-zheng~2 |
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| Abstract: | The plastic buckling of cylindrical shells under biaxial load was studied using rigid-linear hardening model of anisotropic materials. The constitutive equations were linear when the initial calculation point was assumed to be at the original position of the hardening line. For this suppose, basic equations were established for the plastic buckling of cylindrical shells. A plastic buckling case was then solved for a cylindrical shell with frictionless pin-jointed at the four side boundary by these equations, and an analytical expression of the minimum buckling load was given on the condition of weak anisotropy. |
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| Keywords: | cylindrical shell plastic buckling wrinkle |
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