Limit of strain growth in a spherical explosion vessel

被引：0

作者：

Liu W. ^{[1
,2
]}

Zhang D. ^{[2
]}

Cheng S. ^{[2
]}

Zhong F. ^{[2
]}

Zhang Q. ^{[1
]}

机构：

[1] State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing

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

来源：

| 1600年 / Explosion and Shock Waves卷 / 37期

关键词：

Explosive loading; Spherical explosion vessel; Strain growth; Superposition of different vibration modes;

D O I：

10.11883/1001-1455(2017)06-0901-06

中图分类号：

学科分类号：

摘要：

As the strain growth poses a potential hazard for the safety of an explosion vessel, it is of great importance to figure out its limit. The experiment, which was carried out in a spherical explosion vessel, shows that the maximum strain growth factor is up to 6.1. Numerical simulation was conducted to analyze the limit of the strain growth induced by the superposition of different vibration modes in the spherical vessel with elastic deformation. The following conclusions were reached: First, the strain growth phenomenon obeys the law of geometric similarity. The strain growth factor is related to the perturbation type, the ratio of the perturbation radius to the spherical shell radius, the ratio of the spherical shell thickness to the spherical shell radius, the first strain peak and so on. The perturbation type and the ratio of the perturbation radius to the spherical shell radius are the main influencing factors. Second, the largest strain growth factor is up to 12 when the perturbation is fully constrained and the perturbation radius is equal to the spherical shell radius. © 2017, Editorial Board of EXPLOSION AND SHOCK WAVES. All right reserved.

引用

页码：901 / 906

页数：5

共 5 条

[1] Dong Q., Li Q.M., Zheng J.Y., Further study on strain growth in spherical containment vessels subjected to internal blast loading, International Journal of Impact Engineering, 37, 2, pp. 196-206, (2010)
[2] Abakumov A.I., Egunov V.V., Ivanov A.G., Et al., Calculation and experiments on the deformation of explosion-chamber shells, Journal of Applied Mechanics and Technical Physics, 3, pp. 127-130, (1984)
[3] Duffey T.A., Romero C., Strain growth in spherical explosive chambers subjected to internal blast loading, International Journal of Impact Engineering, 28, 9, pp. 967-983, (2003)
[4] Dong Q., Li Q.M., Zheng J.Y., Interactive mechanisms between the internal blast loading and the dynamic elastic response of spherical containment vessels, International Journal of Impact Engineering, 37, 4, pp. 349-358, (2010)
[5] Dong Q., Investigation on the mechanisms of the strain growth phenomenon in containment vessels subjected to internal blast loading, (2008)

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