| 一般硬化材料弹塑性轴对称圆柱壳的工程解法 |
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| 引用本文： | 吴国勋,张行.一般硬化材料弹塑性轴对称圆柱壳的工程解法[J].北京航空航天大学学报,1994,20(4):368-375. |
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| 作者姓名： | 吴国勋 张行 |
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| 作者单位： | 北京航空航天大学飞行器设计与应用力学系 |
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| 摘 要： | 在小弹塑性变形条件下，首先将应力写成应变的奇次四项式的幂函数形式，使其相当精确地拟合材料的拉伸曲线，然后，应用线弹性轴对称圆柱壳的位移模态和一待定系数构成弹塑性壳的位移场，再应用最小势能原理确定该系数，从而得到封闭解。
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| 关 键 词： | 弹塑性问题 圆柱面壳 解 位移场 硬化材料 |
AN ENGINEERING SOLUTION OF ELASTO-PLASTIC AXISYMMETRIC CYLIDRICAL SHELLS MADE OF GENERAL HARDENING MATERIALS |
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| Wu Guoxun, Zhang Xing.AN ENGINEERING SOLUTION OF ELASTO-PLASTIC AXISYMMETRIC CYLIDRICAL SHELLS MADE OF GENERAL HARDENING MATERIALS[J].Journal of Beijing University of Aeronautics and Astronautics,1994,20(4):368-375. |
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| Authors: | Wu Guoxun Zhang Xing |
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| Abstract: | By using the odd function with four term polynomial, the curve of the stress-strain relation can be fitting precisely for various materials. Furthermore, the displacement modes of elastic axisymmetric cylindrical shells and the unknown coefficients are introduced to modify the elasto-plastic displacement field. According to the principle of minimum potential energy,the unknown coefficients as well as the closed solution can be determined. |
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| Keywords: | elastic-plastic problems cylindrical shells solutions (mathematics) elasto-plastic displacement field hardening materials |
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