Failure mechanism and parameter threshold analysis of the internally pressurized cylinder shell under laser irradiation

Ma Te; Xing Xiaodong; Song Hongwei; Huang Chenguang

doi:10.11884/HPLPB201830.170299

Volume 30 Issue 3

Mar. 2018

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Ma Te, Xing Xiaodong, Song Hongwei, et al. Failure mechanism and parameter threshold analysis of the internally pressurized cylinder shell under laser irradiation[J]. High Power Laser and Particle Beams, 2018, 30: 031001. doi: 10.11884/HPLPB201830.170299

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Ma Te, Xing Xiaodong, Song Hongwei, et al. Failure mechanism and parameter threshold analysis of the internally pressurized cylinder shell under laser irradiation[J]. High Power Laser and Particle Beams, 2018, 30: 031001. doi: 10.11884/HPLPB201830.170299

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Failure mechanism and parameter threshold analysis of the internally pressurized cylinder shell under laser irradiation

doi: 10.11884/HPLPB201830.170299

Ma Te^{1, 2
,},
Xing Xiaodong¹,
Song Hongwei^{2
,
,},
Huang Chenguang²

1.
Harbin Engineering University, Harbin 150001, China
2.
Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

Received Date: 2017-07-25
Rev Recd Date: 2017-11-06
Publish Date: 2018-03-15

Abstract

Abstract

Thermal-mechanical failure behavior of the internally pressurized cylinder shell under laser irradiation is investigated by numerical approach. The dynamic bursting processes are simulated, and the obtained failure modes are validated by experiment. Three typical failure modes are found and the corresponding parameter ranges are listed, and formation mechanisms of each failure mode are discussed. The effect of thermal softening on the threshold of internal pressure at different laser spot sizes and shell thicknesses are explored, and the relation between internal pressure and failure time is discussed. The results show that the threshold of internal pressure decreases with the increasing laser spot size and the extent of thermal softening, and it is in linear relationship with the shell thickness. At given laser parameters and shell parameters, the failure time declines in a quadratic function of internal pressure. A method to predict the failure time of internally pressurized cylinder shell under laser irradiation based on thermal softening factor is proposed and presented.
- laser irradiation,
- thermal softening effect,
- pressurized cylindrical shell,
- failure mode,
- failure threshold

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References(10)

References

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