Dynamic response and failure mode of PVC sandwich plates subjected to impact loading

Ye Nan; Zhang Wei; Huang Wei; Li Dacheng; Gao Yubo; Xie Wenbo

doi:10.11883/1001-1455(2017)01-0037-09

Volume 37 Issue 1

Jan. 2017

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Ye Nan, Zhang Wei, Huang Wei, Li Dacheng, Gao Yubo, Xie Wenbo. Dynamic response and failure mode of PVC sandwich plates subjected to impact loading[J]. Explosion And Shock Waves, 2017, 37(1): 37-45. doi: 10.11883/1001-1455(2017)01-0037-09

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Ye Nan, Zhang Wei, Huang Wei, Li Dacheng, Gao Yubo, Xie Wenbo. Dynamic response and failure mode of PVC sandwich plates subjected to impact loading[J]. Explosion And Shock Waves, 2017, 37(1): 37-45. doi: 10.11883/1001-1455(2017)01-0037-09

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Dynamic response and failure mode of PVC sandwich plates subjected to impact loading

doi: 10.11883/1001-1455(2017)01-0037-09

Hypervelocity Impact Research Center, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China

Received Date: 2015-07-10
Rev Recd Date: 2016-02-27
Publish Date: 2017-01-25

Abstract

Abstract

The dynamic response of sandwich plates with identical face sheets separated by compressible PVC (polyvinyl chloride) core subjected to shock loading was investigated. Combined with the three-dimensional digital image correlation technology, the deflection-time history of the back face sheet was measured. Deformation and failure modes of the sheets and core were exhibited to examine the effects of the projectile impulse and the core density. It was found that the fracture and failure occurred mainly at the center of the sandwich plates, and the deflection of the back sheets decreased gradually from the center to the outside, and finally the deformation turned into a corn-like shape. The results indicate that there is a good linear relationship between the projectile impulse and the permanent deflection of the central point of the back face sheets. Reducing the density of the core and raising the thickness of the core can effectively decrease the deflection of the back face sheets while maintaining the quality. The experimental results can provide help for the optimum design of polymer sandwich structures.
- solid mechanics,
- dynamic response,
- impact loading,
- PVC sandwich plate,
- deformation and failure mode

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References(15)

References

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