| 动力荷载下聚氨酯泡沫材料本构关系研究进展 |
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| 引用本文： | 褚洪杰,崔国起,王世斌,李林安,吴华杰.动力荷载下聚氨酯泡沫材料本构关系研究进展[J].高分子材料科学与工程,2012(5):157-159,164. |
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| 作者姓名： | 褚洪杰 崔国起 王世斌 李林安 吴华杰 |
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| 作者单位： | 天津大学机械学院;天津大学内燃机研究所;天津市天大银泰科技有限公司博士后工作站 |
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| 基金项目： | 国家火炬计划(2008GH560074);天津市软件产业发展专项资金(2009年);天津大学青年教师培养基金(TJU-YFF-08B57) |
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| 摘 要： | 聚氨酯泡沫材料是一种应用广泛、应变率敏感、静水压力相关的多孔介质材料。文中综述了近年来国内外聚氨酯泡沫材料本构关系的研究进展。通过对几种应变率相关的本构模型,如粘弹、粘弹塑性等类型本构进展的介绍,分析了这些本构的特点和适用范围。根据已有的实验和本构关系,指出建立聚氨酯泡沫材料动态本构关系过程中需要考虑的主要问题,最后展望了聚氨酯泡沫材料的本构关系发展趋势。
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| 关 键 词： | 聚氨酯泡沫 动力荷载 本构关系 应变率 |
Recent Progress in Investigating Constitutive Models of Polyurethane Foams Subjected to Dynamic Loading |
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| Hongjie Chu,Guoqi Cui,Shibin Wang,Linan Li,Huajie Wu.Recent Progress in Investigating Constitutive Models of Polyurethane Foams Subjected to Dynamic Loading[J].Polymer Materials Science & Engineering,2012(5):157-159,164. |
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| Authors: | Hongjie Chu Guoqi Cui Shibin Wang Linan Li Huajie Wu |
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| Affiliation: | 2,3(1.College of Mechanical Engineering,Tianjin University;2.Internal Combustion Engine Research Institute,Tianjin University,Tianjin 300072,China;3.Post-Doctoral Workstationof Tianjin In-Time Co.,Ltd.,Tianjin 300457,China) |
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| Abstract: | Polyurethane foams,which are a kind of strain rate dependent and hydrostatic dependent porous material,are widely used in many fields.The aim of this work is to deal with recent progress in research on the constitutive models of the foams.Several different strain rate dependent type constitutive models such as visco-elastic,visco-elastic-plastic and some other type constitutive models of the foams were introduced.In particular,the difference between these models was highlighted and the limitations were pointed out.Based on these models,the suggestions were made when one wants to construct a new constitutive model.The instructional tendencies of the models were also discussed. |
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| Keywords: | polyurethane foam dynamic loading constitutive model strain-rate |
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