Strain growth of spherical shell subjected to internal blast loading during plastic response

Liu Wenxiang; Zhang Qingming; Zhong Fangping; Cheng Shuai; Zhang Dezhi

doi:10.11883/1001-1455(2017)05-0893-06

Volume 37 Issue 5

Jul. 2017

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Liu Wenxiang, Zhang Qingming, Zhong Fangping, Cheng Shuai, Zhang Dezhi. Strain growth of spherical shell subjected to internal blast loading during plastic response[J]. Explosion And Shock Waves, 2017, 37(5): 893-898. doi: 10.11883/1001-1455(2017)05-0893-06

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Strain growth of spherical shell subjected to internal blast loading during plastic response

doi: 10.11883/1001-1455(2017)05-0893-06

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2.
Northwest Institute of Nuclear Technology, Xi'an 710024, Shaanxi, China

Received Date: 2016-04-21
Rev Recd Date: 2016-10-12
Publish Date: 2017-09-25

Abstract

Abstract

Strain growth, whose related research has so far been concerned mostly with its behavior during the plastic response inside a spherical shell, poses a threat to the safety of explosion containment vessels. In the present work, the strain growth of the spherical vessel during the plastic response was observed by the experiment, and the strain growth factor (the ratio of the maximum strain of the strain curve to the first peak strain) reached up to 1.16. It was found through the theoretical analysis on the spherical shell response that it was the blast loading with three periodic pulses on the inner wall of the spherical vessel that brought about the strain growth, and that the first two pulses were mainly responsible for the strain growth.
- explosion containment vessel,
- strain growth,
- plastic response,
- periodic loading

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References(8)

References

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