| 压杆纵横弯曲的高阶应变理论解 |
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| 引用本文： | 李成,许晓芳.压杆纵横弯曲的高阶应变理论解[J].平原大学学报,2010(1). |
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| 作者姓名： | 李成 许晓芳 |
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| 作者单位： | 中国科技大学苏州研究院; |
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| 摘 要： | 将高阶应变弹性理论引入细长压杆的纵横弯曲问题中,考察了内禀长度对于纵横弯曲的行为,尤其是中点挠度、最大压力等的影响。结果表明:内禀长度对比外特征尺度不可忽略时,压杆纵横弯曲的最大压力降低;中点挠度也明显受到轴向力、横向力、材料刚度、压杆长度(即外特征尺度)以及内禀长度的影响。工作对于承受纵横弯曲作用的微尺度压杆的设计、制造及使用有一定的指导意义。
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| 关 键 词： | 压杆 纵横弯曲 中点挠度 高阶应变解 |
Higher-order Strain Theoretical Solutions for Vertical and Horizontal Bending of the Compressive Bar |
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| LI Cheng,XU Xiao-fang.Higher-order Strain Theoretical Solutions for Vertical and Horizontal Bending of the Compressive Bar[J].Journal of Pingyuan University,2010(1). |
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| Authors: | LI Cheng XU Xiao-fang |
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| Institution: | Suzhou Institute/a>;University of Science and Technology of China/a>;Suzhou 215123/a>;China |
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| Abstract: | The higher-order strain elasticity theory is applied to the vertical and horizontal bending of compressive bar in this paper.The paper also investigates the effects of internal characteristic length on the bending properties,especially the mid-point deflection,maximal pressure,etc.It is found that maximal pressure decreases when the internal characteristic length can not be ignored compared with the external characteristic length.The mid-point deflection is also influenced significantly by axial force,trans... |
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| Keywords: | compressive bar vertical and horizontal bending mid-point deflection higher-order strain solution |
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