| 引用本文: | 沈怀荣,郝松林.泡沫塑料衬垫的粘弹性有限元分析.[J].国防科技大学学报,1996,18(2):14-19.[点击复制] |
| Shen Huairong,Hao Songlin.Viscoelastic Finite Element Analysis of a Cellular Plastic Bush[J].Journal of National University of Defense Technology,1996,18(2):14-19[点击复制] |
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| 泡沫塑料衬垫的粘弹性有限元分析 |
| 沈怀荣, 郝松林 |
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(国防科技大学 航天技术系 湖南 长沙 410073)
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| 摘要: |
| 介绍了一种用于聚氨酯泡沫塑料衬垫的粘弹性有限元分析程序，利用积分本构关系计算了轴对称衬垫中的应力松弛。从数值结果可见，当衬垫贮存 1000 小时以后，装配应力大约松弛了25%。 |
| 关键词: 应力松弛，泡沫塑料，粘弹性 |
| DOI： |
| 投稿日期：1995-04-13 |
| 基金项目:中国工程物理研究院科学基金资助项目 |
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| Viscoelastic Finite Element Analysis of a Cellular Plastic Bush |
| Shen Huairong, Hao Songlin |
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(Department of Aerospace Technology，NUDT，Changsha，410073)
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| Abstract: |
| In this paper，the viscoelasitc finite element analysis program used for a polyurethane cellular plastic bush is discussed. Stress relaxation in the axisymmetric bush is calculated by utilizing integral constitutive relation. It can be seen from the numerial results that the assembling stress relaxes by about 25% after the bush has been stored by 1000 hours. |
| Keywords: stress relaxation,cellular plastic,viscoelasticity |
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