Dynamic mechanical property experiment and constitutive model establishment of polyurethane foam aluminum

Zhang Yong; Chen Li; Chen Rong-jun; Xie Wei-hong

doi:10.11883/1001-1455(2014)03-0373-06

Volume 34 Issue 3

Aug. 2014

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Zhang Yong, Chen Li, Chen Rong-jun, Xie Wei-hong. Dynamic mechanical property experiment and constitutive model establishment of polyurethane foam aluminum[J]. Explosion And Shock Waves, 2014, 34(3): 373-378. doi: 10.11883/1001-1455(2014)03-0373-06

Citation:

Zhang Yong, Chen Li, Chen Rong-jun, Xie Wei-hong. Dynamic mechanical property experiment and constitutive model establishment of polyurethane foam aluminum[J]. Explosion And Shock Waves, 2014, 34(3): 373-378. doi: 10.11883/1001-1455(2014)03-0373-06

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Dynamic mechanical property experiment and constitutive model establishment of polyurethane foam aluminum

doi: 10.11883/1001-1455(2014)03-0373-06

1.
Mechanics & Architecture Engineering College, China University of Mining & Technology, Xuzhou 221008, Jiangsu, China
2.
Department of Airport Engineering, Air force Service College, Xuzhou 221000, Jiangsu, China
3.
College of Defense Engineering, PLA University of Science & Technology, Nanjing 210007, Jiangsu, China

Funds: Supported by the National Natural Science Foundation of China (51378016)

Received Date: 2012-11-13
Rev Recd Date: 2013-04-27
Publish Date: 2014-05-25

Abstract

Abstract

A new kind of composite energy absorption material was made by filling the holes of open-cell aluminum foam with polyurethane.Split Hopkinson pressure bar impact experiments were performed to evaluate the dynamic mechanical property of the polyurethane foam aluminum complex material.Based on the test results, we analyzed the mechanical behaviors of the material through influencing factors including relative density, strain, strain rate and content of polyurethane.Then the dynamic constitutive model was established.It was shown that: the dynamic modulus of elasticity of the composite material is independent of the relative density; the yield strength and the flow stress of the composite material varies directly with the strain rate and the relative density; the yield strength of the composite material varies directly with the mass of the polyurethane foam.It was proved that in definite ranges of relative density and strain rate, the curves of constitutive model fit well with the curves of experimental data.So the dynamic constitutive model has some reference value to engineering applications.
- solid mechanics,
- dynamic constitutive model,
- SHPB experiment,
- polyurethane foam aluminum,
- impact load

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References(17)

References

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