| 轴对称压—弯下圆板中圆脱层的后屈曲扩展 |
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| 引用本文： | 费志中 Yin.,WL.轴对称压—弯下圆板中圆脱层的后屈曲扩展[J].固体力学学报,1990,11(4):298-304. |
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| 作者姓名： | 费志中 Yin. WL |
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| 作者单位： | 北方交通大学，佐治亚理工学院 |
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| 摘 要： | 本文分析了周边承受轴对称压一弯载荷的圆板中薄圆脱层的后屈曲扩展.运用基于四阶龙格-库塔积分公式的打靶法得到无量纲形式Von Karman非线性方程组的单参数解族.利用与路径无关的M积分导出能量释放率表达式并给出相应的数值解.文中还探讨了分叉、跳跃及扩展的可能性.
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| 关 键 词： | 轴对称 圆板 脱层 后屈曲 |
POSTBUCKLING GROWTH OF A CONCENTRIC DELAMINATION IN A CIRCULAR PLATE UNDER AXISYMMETRIC COMPRESSION AND BENDING |
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| Fe Zhizhong Northern Jiaotong University
Yin Wanlee GA Tech,Atlanta,U.S.A..POSTBUCKLING GROWTH OF A CONCENTRIC DELAMINATION IN A CIRCULAR PLATE UNDER AXISYMMETRIC COMPRESSION AND BENDING[J].Acta Mechnica Solida Sinica,1990,11(4):298-304. |
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| Authors: | Fe Zhizhong Northern Jiaotong University
Yin Wanlee GA Tech Atlanta USA |
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| Abstract: | Postbuckling growth of a thin circular delamination at the center of a circular plate subjected to axisymmetric edge compession and bending is analyzed. A one-parameter family of solutions of the non-dimensionalized von Karman's nonlinear equations is obtained by using the shooting methed based on the fourth-order Runge-Kutta integration formula. The expression of energy release rate is deduced by means of the path-independent M-integral, and corresponding numerical results are given. The present analysis investigates the various possibilities of bifurcation, snap-through and crack growth. |
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| Keywords: | Delamination Postbuckling |
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