Pretightening load design for bolt of closure flange structure under intensive impulse loading

CHENG Shuai; ZHANG Dezhi; LIU Wenxiang; YIN Wenjun; SHI Yingju; CHEN Bo; LI Yan

doi:10.11883/bzycj-2018-0007

Volume 39 Issue 2

Feb. 2019

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CHENG Shuai, ZHANG Dezhi, LIU Wenxiang, YIN Wenjun, SHI Yingju, CHEN Bo, LI Yan. Pretightening load design for bolt of closure flange structure under intensive impulse loading[J]. Explosion And Shock Waves, 2019, 39(2): 024101. doi: 10.11883/bzycj-2018-0007

Citation:

CHENG Shuai, ZHANG Dezhi, LIU Wenxiang, YIN Wenjun, SHI Yingju, CHEN Bo, LI Yan. Pretightening load design for bolt of closure flange structure under intensive impulse loading[J]. Explosion And Shock Waves, 2019, 39(2): 024101. doi: 10.11883/bzycj-2018-0007

Citation:

CHENG Shuai, ZHANG Dezhi, LIU Wenxiang, YIN Wenjun, SHI Yingju, CHEN Bo, LI Yan. Pretightening load design for bolt of closure flange structure under intensive impulse loading[J]. Explosion And Shock Waves, 2019, 39(2): 024101. doi: 10.11883/bzycj-2018-0007

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Pretightening load design for bolt of closure flange structure under intensive impulse loading

doi: 10.11883/bzycj-2018-0007

Key Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, Shaanxi, China

Received Date: 2018-01-04
Rev Recd Date: 2018-02-11
Publish Date: 2019-02-05

Abstract

Abstract

In this article, to figure out an optimal pretightening load selection for a closure flange structure under intense impulsive loading, we designed an experimental system based on the SHPB platform and the hydraulic principle and investigated the dynamic response process of a closure flange structure. The results showed that a minimum extreme point was observed on the curve of the total tensile strain of the bolt under the pretightening and impulsive loading versus the impulse peak. Further more, we obtained the variation pattern of the total tensile strain of the bolt with the change of the impulse peak and decay, which can be used as basis for the structural design and the selection of the bolt preload for a sealing flange under intense impulsive loading.
- impulsive loading,
- flange,
- bolt pretightening load,
- bolt,
- SHPB

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References(15)

References

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