| 聚氨酯复合泡沫塑料压缩本构关系 |
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| 引用本文： | 王嵩,卢子兴. 聚氨酯复合泡沫塑料压缩本构关系[J]. 强度与环境, 2005, 32(4): 22-26,59 |
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| 作者姓名： | 王嵩 卢子兴 |
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| 作者单位： | 北京航空航天大学航空科学与工程学院,北京,100083;北京航空航天大学航空科学与工程学院,北京,100083 |
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| 基金项目： | NSAF联合基金(10276004)，国防科技重点实验室基金(51460020103hk0101) |
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| 摘 要： | 基于聚氨酯复合泡沫塑料的准静态压缩及动态压缩实验数据,讨论了不同材料参数和实验环境对材料应力-应变特性的影响。在此基础上,本文对Sherwood-Frost的本构关系框架进行了扩充,引入了空心球填充比的影响,然后基于实验数据用数值方法拟合了聚氨酯复合泡沫塑料包含应变率、密度以及填充比的压缩本构关系。
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| 关 键 词： | 复合泡沫塑料 力学性能 本构关系 |
| 文章编号： | 1006-3919（2005）04-0022-05 |
| 收稿时间： | 2004-11-08 |
| 修稿时间： | 2004-11-08 |
Experiential compressive constitutive relation for PUR syntactic foamed plastics |
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| WANG Song,LU Zi-xing. Experiential compressive constitutive relation for PUR syntactic foamed plastics[J]. Structure & Environment Engineering, 2005, 32(4): 22-26,59 |
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| Authors: | WANG Song LU Zi-xing |
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| Abstract: | Based on the experimental data of quasi-static compression and dynamic compression of PUR syntactic foamed plastics,the influence of material parameters and experiment environment on the stress-strain characteristics is discussed.The Sherwood-Frost constitutive model is improved in order to describe the influence of hollow sphere content.By means of this improvement,the compressive constitutive relation is fitted by the numerical method according to the experimental data of PUR syntactic foamed plastics,which includes the influence of strain rate,density,and sphere content. |
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| Keywords: | syntactic foamed plastics mechanical properties constitutive relation |
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