| 拉压弹性模量不等材料杆的过屈曲分析 |
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| 引用本文： | 王康建,赵永刚,王铭慧,李长宏.拉压弹性模量不等材料杆的过屈曲分析[J].甘肃科学学报,2014,26(6):19-22. |
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| 作者姓名： | 王康建 赵永刚 王铭慧 李长宏 |
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| 作者单位： | 兰州理工大学理学院,甘肃兰州,730050 |
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| 摘 要： | 基于杆的过屈曲问题,考虑拉压弹性模量不等材料,建立位移形式的过屈曲控制方程.通过对压应力区和拉应力区的应力分析,推导内力和变形的物理关系,考虑非线性变形,研究拉压性能不同杆的过屈曲平衡路径.通过具体问题的数值结果,分析拉压弹性模量不等材料杆的过屈曲问题的力学特征.
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| 关 键 词： | 拉压弹性模量不等 压杆 非线性 过屈曲 打靶法 |
Analysis of Post-Buckling of Rods Made of Material with Different Tension-Compression Moduli |
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| WANG Kang-jian,ZHAO Yong-gang,WANG Ming-hui,LI Chang-hong.Analysis of Post-Buckling of Rods Made of Material with Different Tension-Compression Moduli[J].Journal of Gansu Sciences,2014,26(6):19-22. |
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| Authors: | WANG Kang-jian ZHAO Yong-gang WANG Ming-hui LI Chang-hong |
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| Institution: | ( School of Sciences ,Lanzhou University of Technology ,Lanzhou 730050 ,China) |
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| Abstract: | Aimed at the problem of post-buckling of rods made of material with different tension-compression moduli, the post-buckling governing equation was established in the form of displacement. Through the stress analysis of compression and tension sections,the constitutive relationship between int：inal force and deformation was deduced, and with nonlinear deformation considered the post-buckling equilibrium path of rods with different tension and compression performances was researched. The mechanical property of postbuckling of rods made of material with different tension-compression moduli was analyzed through the numerical results of specific problems. |
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| Keywords: | Different tension-compression moduli Compressed rod Nonlinearity Post-buckling Dhooting method |
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