In-plane impact behavior of circular honeycomb structures randomly filled with rigid inclusions

He Qiang; Ma Da-wei; Zhang Zhen-dong

doi:10.11883/1001-1455-(2015)03-0401-08

Volume 35 Issue 3

Jun. 2015

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He Qiang, Ma Da-wei, Zhang Zhen-dong. In-plane impact behavior of circular honeycomb structures randomly filled with rigid inclusions[J]. Explosion And Shock Waves, 2015, 35(3): 401-408. doi: 10.11883/1001-1455-(2015)03-0401-08

Citation:

He Qiang, Ma Da-wei, Zhang Zhen-dong. In-plane impact behavior of circular honeycomb structures randomly filled with rigid inclusions[J]. Explosion And Shock Waves, 2015, 35(3): 401-408. doi: 10.11883/1001-1455-(2015)03-0401-08

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In-plane impact behavior of circular honeycomb structures randomly filled with rigid inclusions

doi: 10.11883/1001-1455-(2015)03-0401-08

School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received Date: 2013-09-17
Rev Recd Date: 2014-02-21
Publish Date: 2015-05-25

Abstract

Abstract

The model of circular honeycomb structures randomly filled with rigid inclusions which keeps the relative density as a constant is developed.And then the effects of impact velocity and packing ratio on the deformation modes, dynamic plateau stress and energy absorption capacities are discussed in detail.Research results show that the rigid inclusions have pinning effect in the process of deformation and the deformation modes can still be classified as quasi-static mode, transitional mode and dynamic mode.The plateau stress is proportional to the square of the impact velocity when the honeycombs are deformed at transitional mode or dynamic mode, which shows obvious speed effect. The energy absorption capacities of circular honeycombs are higher than these of the regular honeycombs at high-velocity impact.These results can provide valuable suggestions in the study and design of the functionally gradient honeycombs.
- solid mechanics,
- deformation modes,
- energy absorption,
- plateau stress,
- inclusions,
- circular honeycomb

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References(12)

References

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