| 泡沫铝材料的一维粘塑性本构关系 |
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| 引用本文： | 胡玲玲,黄小清,张红,汤立群.泡沫铝材料的一维粘塑性本构关系[J].华南理工大学学报(自然科学版),2004,32(4):87-91. |
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| 作者姓名： | 胡玲玲 黄小清 张红 汤立群 |
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| 作者单位： | 华南理工大学,交通学院,广东,广州,510640 |
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| 基金项目： | 广东省自然科学基金资助项目 (0 116 0 2 ) |
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| 摘 要： | 通过对不同初始密度的泡沫铝进行准静态压缩和动态冲击试验，得到了泡沫铝材料在中低应变率下的力学行为，结合分析含多种内变量的粘塑性本构模型的物理意义，推荐了适合于泡沫铝材料的一维粘塑性本构模型，并对推荐模型进行了拟合，拟合结果与实验结果吻合比较好，该模型和实验结果均反映了泡沫铝材料的应变率负敏感特性。
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| 关 键 词： | 泡沫铝 粘塑性本构模型 应变率 |
| 文章编号： | 1000-565X(2004)04-0087-05 |
| 修稿时间： | 2003年4月25日 |
One-dimension Viscous-plastic Constitution of Aluminum Foam |
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| Hu Ling-ling,Huang Xiao-qing,Zhang Hong,Tang Li-qun.One-dimension Viscous-plastic Constitution of Aluminum Foam[J].Journal of South China University of Technology(Natural Science Edition),2004,32(4):87-91. |
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| Authors: | Hu Ling-ling Huang Xiao-qing Zhang Hong Tang Li-qun |
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| Abstract: | The mechanics behaviors of aluminum foam with medium and low strain rates were investigated by the quasi-static compression test and the dynamic impact test of aluminum foam with different initial densities. Based on the analyses of the investigated results and the physical meaning of the viscous-plastic constitution mo-del containing various internal variables, a one-dimension viscous-plastic constitution model for aluminum foam was recommended and then fitted. It is found that the fitted results conform the experimental results well. Both the constitution model and the experiment results have revealed the negative strain-rate sensitivity of aluminum foam. |
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| Keywords: | aluminum foam viscous-plastic constitution model strain rate |
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