Dynamic response of fiber-composite-reinforced shell structure subjected to internal blast loading

Abstract The dynamic response of composite explosion containment vessels has been widely reported by experimental observations. In this study, we propose an analytical method to predict the dynamic response of open-ended cylindrical composite shells subjected to internal blast loading. The cylindrical composite shell has an out fiber composite shell with an inner steel liner, in which the outer fiber composite shell is simplified as a single elastic layer by an effective modulus in the hoop direction. Considering the impact between two layers during the dynamic response, the analytical solution for response histories of two layers could be obtained. Finite element analysis on the double-layer model is also conducted by ls-dyna. The analytical solution and the simulation result agree well, which demonstrates that the current analytical method can be employed in the design of this composite structure under blast loading.

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Dynamic Failure Behavior of Cylindrical Glass Fiber Composite Shells Subjected to Internal Blast Loading

Journal of Pressure Vessel Technology ◽

10.1115/1.4032433 ◽

2016 ◽

Vol 138 (6) ◽

Cited By ~ 4

Author(s):

Qi Dong ◽

Penglai Wang ◽

Chenhong Yi ◽

Bayi Hu

Keyword(s):

Glass Fiber ◽

Fiber Composite ◽

Blast Loading ◽

Failure Behavior ◽

Composite Shells ◽

Fiber Fracture ◽

Cylindrical Glass ◽

Glass Fiber Composite ◽

Steel Liner ◽

Internal Blast Loading

The dynamic response of open-ended cylindrical glass fiber composite shells subjected to internal blast loading is studied in the current paper. The experimental observation on response characteristics of cylindrical glass fiber shells is presented, in which failure modes of composite structures are especially concerned. It is found that dynamic buckling may occur in the inner steel liner, which may consequently cause delamination and fiber fracture of the outer glass fiber shell and thus limits the blast loading resistant capability of glass fiber explosion containment vessels. The other failure mode is obvious circular plastic expansion of the inner steel liner and fiber fracture of the outer fiber shell. There exists an interesting case that hoop winding fibers fail but fibers with a winding angle do not fail, based on which the hybrid filament wound method for cylindrical composite containment vessels is proposed. The current study may contribute to further understanding on the design and application of glass fiber composite explosion containment vessels (CECVs).

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Dynamic response of cylindrical explosive chambers to internal blast loading produced by a concentrated charge

International Journal of Impact Engineering ◽

10.1016/s0734-743x(97)00022-5 ◽

1997 ◽

Vol 19 (9-10) ◽

pp. 831-845 ◽

Cited By ~ 25

Author(s):

Zhu Whenhui ◽

Xue Honglu ◽

Zhou Guangquan ◽

G.K. Schleyer

Keyword(s):

Dynamic Response ◽

Blast Loading ◽

Internal Blast Loading

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Dynamic response and damage analysis of steel box wall under internal blast loading

Advances in Mechanical Engineering ◽

10.1177/1687814018822601 ◽

2019 ◽

Vol 11 (1) ◽

pp. 168781401882260

Author(s):

Duo Zhang ◽

Shujian Yao ◽

Fangyun Lu ◽

Jiangjie Song ◽

Yuqing Ding

Keyword(s):

Numerical Methods ◽

Dynamic Response ◽

Plate Thickness ◽

Blast Loading ◽

Damage Mechanism ◽

Dimensionless Number ◽

Damage Mode ◽

Two Dimensional ◽

Box Models ◽

Internal Blast Loading

Different loading conditions, different structural dimensions, or different structural materials will lead to different damage results. In this study, blast experiment of steel box model under internal explosion was conducted and the numerical methods are validated through comparison of experimental and numerical results. Then, a series of multi-box models were built, and a large number of numerical simulations considering two kinds of steel, different plate thickness ranging from 0.005 to 0.025 m, and different TNT explosive mass ranging from 5 to 2000 kg were carried out using the validated numerical methods. Two damage modes, convex damage and concave damage, were observed. The dynamic response and damage mechanism were analyzed, and the results show that the different damage modes of the first wall will lead to different damage results of the second wall. Through dimensional analysis, a two-dimensional dimensionless number for internal blast analysis was suggested. Clear physical meanings are conveyed in the dimensionless number. After that, prediction of the damage modes was studied using the proposed dimensionless number. A damage mode map was plotted based on the two-dimensional dimensionless number, and an empirical equation for rapid prediction of damage mode of steel box wall under internal blast loading is proposed.

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Experiment and numerical study on dynamic response of liquid cabin under internal blast loading

Thin-Walled Structures ◽

10.1016/j.tws.2019.106405 ◽

2019 ◽

Vol 145 ◽

pp. 106405 ◽

Cited By ~ 3

Author(s):

Ying Li ◽

Lei Zhang ◽

Dengbao Xiao ◽

Tian Zhao ◽

Zhipeng Du ◽

...

Keyword(s):

Dynamic Response ◽

Numerical Study ◽

Blast Loading ◽

Internal Blast Loading

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Effect of Structural Dimensions on Strain Growth of Cylindrical Vessels

Volume 5: High-Pressure Technology; ASME NDE Division; Rudy Scavuzzo Student Paper Symposium ◽

10.1115/pvp2013-97055 ◽

2013 ◽

Author(s):

Q. Dong ◽

Y. Gu

Keyword(s):

Dynamic Response ◽

Influencing Factor ◽

Blast Loading ◽

Elastic Response ◽

Local Dynamic ◽

Response Characteristics ◽

Finite Element Software ◽

Structural Dimensions ◽

Internal Blast Loading ◽

Dynamic Response Characteristics

Strain growth is a phenomenon observed in the elastic response of containment vessels subjected to internal blast loading. The local dynamic response of a containment vessel may become larger in a later stage than its response in the earlier stage. To further study the mechanism of strain growth, the effect of structural dimensions on strain growth of cylindrical vessels subjected to internal blast loading is thoroughly investigated in this paper. The dynamic response characteristics of eight cylindrical shells with different lengths and thicknesses are studied by finite element software LS-DYNA. It is shown that the structural dimension is a dominant influencing factor of strain growth.

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Dynamic Response of Steel Box Girder under Internal Blast Loading

Advances in Civil Engineering ◽

10.1155/2018/9676298 ◽

2018 ◽

Vol 2018 ◽

pp. 1-12 ◽

Cited By ~ 1

Author(s):

Shujian Yao ◽

Nan Zhao ◽

Zhigang Jiang ◽

Duo Zhang ◽

Fangyun Lu

Keyword(s):

Shock Wave ◽

Dynamic Response ◽

Failure Modes ◽

Numerical Study ◽

Blast Loading ◽

Deformation Degree ◽

Box Girder ◽

Steel Box Girder ◽

Internal Shock ◽

Internal Blast Loading

This paper aims at investigating the dynamic response of the steel box girder under internal blast loads through experiments and numerical study. Two blast experiments of steel box models under internal explosion were conducted, and then, the numerical methods are introduced and validated. The dynamic response process and propagation of the internal shock wave of a steel box girder under internal blast loading were investigated. The results show that the propagation of the internal shock wave is very complicated. A multi-impact effect is observed since the shock waves are restricted by the box. In addition, the failure modes and the influence of blast position as well as explosive mass were discussed. The holistic failure mode is observed as local failure, and there are two failure modes for the steel box girder's components, large plastic deformation and rupture. The damage features are closely related to the explosive position, and the enhanced shock wave in the corner of the girder will cause severe damage. With the increasing TNT mass, the crack diameter and the deformation degree are all increased. The longitudinal stiffeners restrict the damage to develop in the transverse direction while increase the crack diameter along the stiffener direction.

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