Numerical research on response of hybrid corrugated sandwich plates subjected to combined blast and fragment loadings

LI Yong; XIAO Wei; CHENG Yuansheng; LIU Jun; ZHANG Pan

doi:10.11883/bzycj-2016-0224

Volume 38 Issue 2

Jan. 2018

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LI Yong, XIAO Wei, CHENG Yuansheng, LIU Jun, ZHANG Pan. Numerical research on response of hybrid corrugated sandwich plates subjected to combined blast and fragment loadings[J]. Explosion And Shock Waves, 2018, 38(2): 279-288. doi: 10.11883/bzycj-2016-0224

Citation:

LI Yong, XIAO Wei, CHENG Yuansheng, LIU Jun, ZHANG Pan. Numerical research on response of hybrid corrugated sandwich plates subjected to combined blast and fragment loadings[J]. Explosion And Shock Waves, 2018, 38(2): 279-288. doi: 10.11883/bzycj-2016-0224

Citation:

LI Yong, XIAO Wei, CHENG Yuansheng, LIU Jun, ZHANG Pan. Numerical research on response of hybrid corrugated sandwich plates subjected to combined blast and fragment loadings[J]. Explosion And Shock Waves, 2018, 38(2): 279-288. doi: 10.11883/bzycj-2016-0224

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Numerical research on response of hybrid corrugated sandwich plates subjected to combined blast and fragment loadings

doi: 10.11883/bzycj-2016-0224

1.
School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
2.
China Ship Development and Design Center, Wuhan 430064, Hubei, China

Received Date: 2016-08-11
Rev Recd Date: 2017-01-19
Publish Date: 2018-03-25

Abstract

Abstract

The dynamic response of hybrid corrugated sandwich plates subjected to combined effects of blast and fragment loading was analyzed using finite element analysis code LS-DYNA. The effects of charge mass, loading type and filling strategy on deformation/failure pattern of hybrid corrugated sandwich plates were investigated. The comparison of anti combined loadings performance to three equivalent structures (solid plate, double-layered plate and corrugated sandwich plate) was made. Finally, the energy absorption characteristics of hybrid corrugated sandwich panels were discussed. Numerical results show that the damage extent of hybrid corrugated sandwich plates under bare fragment cluster loading or combined blast and fragment loading is more severe than that caused by bare blast loading. When the charge mass is small, the performances of corrugated sandwich plate and hybrid corrugated sandwich plate are superior to equivalent solid plate and double-layered plate. The corrugated sandwich panels with fully filling configuration possess the best damage resistance, followed by that with upper space filling configuration, and that with lower space filling configuration has the worst. All the structures fractured catastrophically when the charge mass is large. For energy absorption, the corrugated core is the main energy absorption part under bare blast loading, while the front face becomes the main energy absorption part under the other two loading conditions.
- anti combined loadings performance,
- blast and fragment,
- hybrid corrugated sandwich plate,
- failure pattern,
- LS-DYNA

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References(19)

References

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