Asay window for probing the microspall of materials

Zhang Lin; Li Yinghua; Zhang Zugen; Li Xuemei; Hu Changming; Cai Lingcang

doi:10.11883/1001-1455(2017)04-0692-07

Volume 37 Issue 4

May 2017

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Zhang Lin, Li Yinghua, Zhang Zugen, Li Xuemei, Hu Changming, Cai Lingcang. Asay window for probing the microspall of materials[J]. Explosion And Shock Waves, 2017, 37(4): 692-698. doi: 10.11883/1001-1455(2017)04-0692-07

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Zhang Lin, Li Yinghua, Zhang Zugen, Li Xuemei, Hu Changming, Cai Lingcang. Asay window for probing the microspall of materials[J]. Explosion And Shock Waves, 2017, 37(4): 692-698. doi: 10.11883/1001-1455(2017)04-0692-07

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Asay window for probing the microspall of materials

doi: 10.11883/1001-1455(2017)04-0692-07

National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2015-11-30
Rev Recd Date: 2016-04-27
Publish Date: 2017-07-25

Abstract

Abstract

Microspall is an essential problem in both theoretical investigation and engineering application in shock physics. The Asay window, originally developed to diagnose the multi-spall behavior of material, was recently employed to probe the microspall, but its ability for probing the problem calls for further demonstration, and the corresponding signal also needs further explanation. In this paper, wave propagation analysis indicates that the sample bearing microspall can be separated into several different characteristic regions, the experiments performed demonstrate that the Asay window can sensitively distinguish these regions as far as a reasonable experimental configuration is set up, and even the features of the micro jet particles can be detected. So the technique was proved of great value for dynamic fragmentation studies.
- Asay window,
- wave propagation analysis,
- microspall,
- shock wave

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References(27)

References

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