| 轴向冲击下理想塑性直杆动态屈曲的过应力简化分析模型* |
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| 引用本文： | 揭敏.轴向冲击下理想塑性直杆动态屈曲的过应力简化分析模型*[J].应用数学和力学,1995,16(6):569-572. |
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| 作者姓名： | 揭敏 |
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| 作者单位： | 华中理工大学力学系 武汉 430074 |
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| 基金项目： | 华中理工大学青年科学基金 |
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| 摘 要： | 本文在理想塑性直杆的动态屈曲分析中引入应变率效应,得到相应的动力学微分方程,求出了屈曲半波长,临界载荷和屈曲时间的表达式.讨论了应变率效应对杆的塑性动态屈曲的影响.并与文4]的理论和试验结果作了比较.
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| 关 键 词： | 应变率效应 理想塑性 杆 动态屈曲 |
| 收稿时间： | 1994-08-10 |
A Simplified Over-Stress Analytical Model of the Dynamic Buckling of a Perfectly Plastic Column under Axial Impact |
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| Jie Min.A Simplified Over-Stress Analytical Model of the Dynamic Buckling of a Perfectly Plastic Column under Axial Impact[J].Applied Mathematics and Mechanics,1995,16(6):569-572. |
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| Authors: | Jie Min |
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| Institution: | Department of Mechanics Huazhong University of Science and Technology, Wuhan 430074, P. R. China |
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| Abstract: | This paper introduces the strain-rate effects in the analysis of dynamic buckling of a perfectly plastic column . The corresponding differential equation of dynamics is deduced.The expressions of half-wave,length of buckling mode,oritical load and time of buckling are obtained.Discussicn on the strain-rate effect on the plastic dynamic buckling of a column is presented.The results of this paper are compared with those of the theory and experiment in 4]. |
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| Keywords: | strain rate effect perfectly plastic column dynamic buckling |
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