| 弹性梯度塑性有限元及其在剪切带分析中的应用 |
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| 引用本文： | 付志平,金永杰.弹性梯度塑性有限元及其在剪切带分析中的应用[J].福州大学学报(自然科学版),1994(4):170-173. |
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| 作者姓名： | 付志平 金永杰 |
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| 作者单位： | 上海交通大学工程力学系 |
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| 摘 要： | 提出弹性梯度塑性有限元方法，并对平面应力剪切带问题进行计算．结果表明：弹性模量越大，梯度系数越大，剪切带宽度也越大；扰动形式不同，局部化程度亦不同；剪切带方向的计算值和理论值一致．
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| 关 键 词： | 梯度塑性 有限元 剪切带 局部化 |
The Finite Element of Elasto-Gradient Plasticity and Its Application to the Analysis of Shear Band |
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| Fu Zhiping,Jin Yongjie.The Finite Element of Elasto-Gradient Plasticity and Its Application to the Analysis of Shear Band[J].Journal of Fuzhou University(Natural Science Edition),1994(4):170-173. |
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| Authors: | Fu Zhiping Jin Yongjie |
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| Institution: | Fu Zhiping; Jin Yongjie(Department of Engineering Mechanics, Shanghai Jiaotong University, Shanghai,200030) |
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| Abstract: | The finite element method of elasto-gradient plasticity is proposed in this paper, and some problems of the shear band of plane stress have been calculated by this method. The conclusions are as follows: the larger the elastic modulus and gradient coefficient are, the broader the width of shear band is and the degree of localization is effected by the form of perturbation. The calculation results of the orientation is consistent with the theoretical one. So it is shown that the method proposed above is feasible. |
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| Keywords: | gradient plasticity finite element shear band localization |
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