Dynamic responses of aramid honeycomb sandwich panels loaded by an electric gun

ZHAO Yayun; MO Jianjun; TAN Fuli; SUN Yuxin; ZHANG Jin

doi:10.11883/bzycj-2016-0267

Volume 38 Issue 1

Nov. 2017

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ZHAO Yayun, MO Jianjun, TAN Fuli, SUN Yuxin, ZHANG Jin. Dynamic responses of aramid honeycomb sandwich panels loaded by an electric gun[J]. Explosion And Shock Waves, 2018, 38(1): 85-91. doi: 10.11883/bzycj-2016-0267

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ZHAO Yayun, MO Jianjun, TAN Fuli, SUN Yuxin, ZHANG Jin. Dynamic responses of aramid honeycomb sandwich panels loaded by an electric gun[J]. Explosion And Shock Waves, 2018, 38(1): 85-91. doi: 10.11883/bzycj-2016-0267

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Dynamic responses of aramid honeycomb sandwich panels loaded by an electric gun

doi: 10.11883/bzycj-2016-0267

1.
National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China
3.
School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 210094, Jiangsu, China

Received Date: 2016-09-01
Rev Recd Date: 2016-12-19
Publish Date: 2018-01-25

Abstract

Abstract

We studied the dynamically loaded quadrate sandwich plates constructed from titanium alloy plates with an aramid honeycomb core using high-velocity Mylar flyers produced by an electric gun, and classified systematically the deformation/failure modes of the plates and the honey comb core. Applying the velocity interferometer system for any reflector (VISAR) in measuring the velocity history at the midpoint of the back plates, we analyzed the dynamic response processes of the sandwich panels and identified the influences of the impact velocity on the dynamic response and the impact resistance of the sandwich panels. The results indicate that the stress pulses were blocked by the aramid honeycombs (a low wave impedance material), which led to the deformed front plates that absorbed most of the impact energy, thereby improving effectively the impact resistance capability of the general sandwich panels owing to the high strength of the titanium alloy and the energy absorption of the aramid honeycomb.
- dynamic response,
- impulse loading,
- sandwich plate,
- aramid honeycomb,
- Mylar flyer,
- electric gun

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References(14)

References

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