聚合物泡沫材料动态力学性能及其能量吸收研究

姚小虎; 任会兰; 林荣; 张晓晴

doi:10.11858/gywlxb.2012.05.008

聚合物泡沫材料动态力学性能及其能量吸收研究

doi: 10.11858/gywlxb.2012.05.008

1.
华南理工大学土木与交通学院工程力学系，广东广州 510640；
2.
北京理工大学爆炸科学与技术国家重点实验室，北京 100081；
3.
暨南大学理工学院，广东广州 510640

详细信息

通讯作者:
任会兰 E-mail:huilanren@bit.edu.cn

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出版历程
- 收稿日期: 2011-10-20
- 修回日期: 2012-03-26
- 发布日期: 2012-10-15

Study on Dynamic Mechanical Properties and Energy Absorption of Polymeric Foams

1.
Department of Engineering Mechanics, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China;
2.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;
3.
College of Science & Engineering, Jinan University, Guangzhou 510640, China

摘要

摘要: 通过落锤实验，对发泡聚乙烯（EPE）、发泡聚丙烯（EPP）材料的动态力学性能进行了研究，提出了一种获得聚合物泡沫材料在恒定应变率下本构曲线的方法，建立了EPE的Low Density Foam本构模型。以此为基础，探索了在冰箱跌落过程中，聚合物泡沫包装材料的能量吸收以及对冰箱抗跌落冲击的保护能力。
- 聚合物泡沫 /
- 动态力学性能 /
- 本构模型 /
- 能量吸收
Abstract: Foaming polyethylene (EPE) and foamed polypropylene (EPP) were tested in drop0weight experiments to study the dynamic mechanical behavior of polymeric foams. With the proposal of a method to obtain stress0strain curve under certain strain rate, constitutive model of EPE was established in Low Density Foam. Comparison was made between real experiment and simulation results and the accuracy was validated. Based on the constitutive model, energy absorption and protective performance of polymeric foam was evaluated in refrigerator package drop experiments.
- polymeric foams /
- dynamic mechanical properties /
- constitutive model /
- energy absorption

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参考文献(5)

Subhash G, Liu Q, Gao X L. Quasistatic and high strain rate uniaxial compressive response of polymeric structural foams [J]. Int J Impact Eng, 2006, 32(7): 1113-1126.

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