| 晶体塑性变形离散滑移模型及有限元分析 |
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| 引用本文： | 潘文科,王自强,张永伟. 晶体塑性变形离散滑移模型及有限元分析[J]. 力学学报, 1997, 29(3): 278-286. DOI: 10.6052/0459-1879-1997-3-1995-227 |
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| 作者姓名： | 潘文科 王自强 张永伟 |
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| 作者单位： | 中国科学技术大学五系 |
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| 摘 要： | 基于韧性单晶体实验现象，建立了描述晶体塑性变形的离散滑移模型．该模型的主要特点是：晶体滑移变形在宏观上是不均匀的，滑移带的分布是离散的．利用晶体塑性理论对模型进行了有限变形有限元分析，计算结果揭示了晶体滑移的离散行为，模拟的应力 应变曲线与实验曲线相吻合
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| 关 键 词： | 晶体 塑性 离散滑移 有限变形 有限元 |
DISCRETE SLIP MODEL OF CRYSTALS AND FINITE ELEMENT ANALYSIS |
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| Pan Wenke. DISCRETE SLIP MODEL OF CRYSTALS AND FINITE ELEMENT ANALYSIS[J]. chinese journal of theoretical and applied mechanics, 1997, 29(3): 278-286. DOI: 10.6052/0459-1879-1997-3-1995-227 |
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| Authors: | Pan Wenke |
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| Abstract: | Based on the experiment results of single crystals, a discrete slip model is established to describe the crystal plastic deformation. The main characteristics of the model is that the slip deformation of the crystal is macro innhomogeneous and the distribution of slip bands is discrete. Crystal plastic theory and finite element method are used to analyse the finite deformation of the model. Digital results display the discrete characteristics of the crystal slip deformation. The calculated stress strain relation is identical with that of the experiment. |
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| Keywords: | crystal plasticity discrete slip finite deformation |
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