| 正交各向异性薄板的弹塑性屈曲分析 |
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| 引用本文： | 刘腾喜,黄世清,傅衣铭,丁皓江.正交各向异性薄板的弹塑性屈曲分析[J].上海力学,2002,23(4):552-557. |
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| 作者姓名： | 刘腾喜 黄世清 傅衣铭 丁皓江 |
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| 作者单位： | [1]浙江大学建筑工程学院，杭州310027 [2]湖南大学工程力学系，长沙410082 |
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| 基金项目： | 国家科委九五攻关项目基金(95-A22-03-04) |
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| 摘 要： | 本文应用混合硬化正交各向异性塑性理论和屈曲的能量法则，推导了正交各向异性薄板在面内压缩情况下的弹塑性稳定方程，计算了相应的临界荷载，并讨论几何形状、边界条件及诱导荷载比等对临界应力的影响。分析表明材料的各向异性性质对弹塑性临界应力的有较大的影响。
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| 关 键 词： | 正交各向异性 弹塑性 屈曲 临界应力 |
| 修稿时间： | 2001年11月21 |
Elasto-plastic Buckling Analysis for Orthotropic Plates |
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| LIU Teng-xi,HUANG Shi-qing,FU Yi-ming,DING Hao-jiang.Elasto-plastic Buckling Analysis for Orthotropic Plates[J].Chinese Quarterly Mechanics,2002,23(4):552-557. |
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| Authors: | LIU Teng-xi HUANG Shi-qing FU Yi-ming DING Hao-jiang |
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| Abstract: | Based on the plastic theory of mixed hardening orthotropic material and the energy principle of buckling, the elasto-plastic stability equations were established and the critical stresses were calculated for orthotropic plates under in-plane pressing. The influences of geometry of plates and ratio of loads along two directions on the elastic-plastic critical stresses were discussed. The numerical examples show that the influence of orthotropy of material is unignorable. |
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| Keywords: | orthotropic elastic-plastic buckling critical stress |
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