Static/dynamic mechanical properties and a constitutive model of a polyvinyl chloride elastomer

LEI Jingfa; XU Meng; LIU Tao; XUAN Yan; SUN Hong; WEI Zhan

doi:10.11883/bzycj-2019-0249

Volume 40 Issue 10

Oct. 2020

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LEI Jingfa, XU Meng, LIU Tao, XUAN Yan, SUN Hong, WEI Zhan. Static/dynamic mechanical properties and a constitutive model of a polyvinyl chloride elastomer[J]. Explosion And Shock Waves, 2020, 40(10): 103103. doi: 10.11883/bzycj-2019-0249

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LEI Jingfa, XU Meng, LIU Tao, XUAN Yan, SUN Hong, WEI Zhan. Static/dynamic mechanical properties and a constitutive model of a polyvinyl chloride elastomer[J]. Explosion And Shock Waves, 2020, 40(10): 103103. doi: 10.11883/bzycj-2019-0249

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Static/dynamic mechanical properties and a constitutive model of a polyvinyl chloride elastomer

doi: 10.11883/bzycj-2019-0249

LEI Jingfa^{1, 2
,},
XU Meng¹,
LIU Tao^{1, 2
,
,},
XUAN Yan¹,
SUN Hong^{1, 2},
WEI Zhan¹

1.
School of Mechanical and Electrical Engineering, Anhui Jianzhu University, Hefei 230601, Anhui, China
2.
Anhui Education Department Key Laboratory of Intelligent Manufacturing of Construction Machinery, Anhui Jianzhu University, Hefei 230601, Anhui, China

Received Date: 2019-06-25
Rev Recd Date: 2020-07-29

Available Online: 2020-08-25

Publish Date: 2020-10-05

Abstract

Abstract

In order to reveal the mechanical properties of a polyvinyl chloride elastomer under static and dynamic loading, the stress-strain curves of the polyvinyl chloride elastomer at six different strain rates (0.001, 0.01, 0.1, 1 510, 2 260 and 3 000 s⁻¹) were obtained by using a universal material testing machine and a modified split Hopkinson pressure bar experimental device. The shaping effects of the three shaper materials including copper, coated paper and plumbum were compared by using the yield strength as the optimized parameter of the shapers. It is difficult to obtain a unified parametric constitutive expression directly using the original ZWT nonlinear viscoelastic constitutive model, and the constitutive model is less efficient in describing the mechanical properties of the materials under static and dynamic loading. Therefore, the modified ZWT nonlinear viscoelastic constitutive model was used to describe the mechanical properties of the material under static and dynamic loading. The results show that the polyvinyl chloride elastomer has a strain-rate effect and significant hyperelastic properties under static load. It exhibits a more obvious strain-rate effect and strong resistance to deformation under dynamic loading, and the mechanical behaviors under static and dynamic loading are greatly affected by the strain histories. Coated paper has the best shaping effect among the three shaper materials. The modified ZWT nonlinear viscoelastic constitutive model can obtain constitutive expressions with uniform parameters, and the fitting results at various strain rates are in good agreement with the experimental results.
- polyvinyl chloride elastomer,
- static/dynamic mechanical properties,
- ZWT nonlinear viscoelastic constitutive model,
- pulse shaper

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References(17)

References

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