Confined blast loading of steel plates with and without pre-formed holes

Zhang, Chengjian; Tan, P.J.; Yuan, Ye

doi:10.1016/j.ijimpeng.2022.104183

Cited by 24 publications

(6 citation statements)

References 46 publications

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“…The effects of pre-formed holes on the deformation and failure of thin steel plates subjected to confined blast loading. Plates with preformed holes have smaller permanent displacement on the midpoint than an intact plate [25].…”

Section: Steel Plates With and Without Preformed Holesmentioning

confidence: 93%

Investigation of Honeycomb Sandwich Panel Structure using Aluminum Alloy (AL6XN) Material under Blast Loading

Ansori

Prabowo²,

Muttaqie³

et al. 2022

Civ Eng J

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In this study, we focused on the large inelastic behavior of a sandwich panel made of two solid plates as a stiffener and a honeycomb core shell subjected to blast load. The loading scheme was carried out using an explosive charge bullet mounted at a standoff distance of 100 mm with three mass variations of trinitrotoluene: 1, 2, and 3 kg TNT. The numerical simulations performed using ABAQUS/CAE were validated with the experimental results of a previous study. The geometrical effects of the sandwich panel on intact and damaged models were also numerically investigated. The panel was designed using a square and hexagonal honeycomb core. The effect of honeycomb core height was also observed by modeling the core using three height variations: 31, 51, and 71 mm. The results showed that the hexagonal core was more resistant to blast loads than the square design. The core height parameter determines the energy absorption based on these results. The structural strength is also affected by the damage. The findings of this study can be used to improve structural designs that utilize sandwich panels to withstand blast loads. Doi: 10.28991/CEJ-2022-08-05-014 Full Text: PDF

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Section: Steel Plates With and Without Preformed Holesmentioning

confidence: 93%

Investigation of Honeycomb Sandwich Panel Structure using Aluminum Alloy (AL6XN) Material under Blast Loading

Ansori

Prabowo²,

Muttaqie³

et al. 2022

Civ Eng J

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“…Tables 2 and 3 list the air properties, EOS properties and the detonation parameters. The steel plate and polyurea coating were discretised using four-node shell elements [2][3][4] and eightnode solid brick elements [23,24,26], respectively. The interface between plate and coating have matching meshes.…”

Section: Arbitrary Lagrangian-eulerian (Ale) Simulationmentioning

confidence: 99%

“…there is no relative motion between the two surfaces that are in contact. The walls of the blast chamber and blanking plate were modelled as rigid plates by following the same in [3]. All the simulation was run for over 2.5 ms which was shown to be sufficiently long to model the entire elasto-plastic response of the structures.…”

Section: Arbitrary Lagrangian-eulerian (Ale) Simulationmentioning

confidence: 99%

“…Thin-walled structural members are used in a significant number of structural applications: aircraft, storage tanks, bulkheads in ships and etc. Their survivability -defined as the ability to retain service functionality in the face of threats -to extreme load cases have received increased attention lately, such as the confined blast performance of thin metallic plates [1][2][3][4]. The intensity of a confined blast is often amplified [5] through multiple shock wave reverberations, leading to prolonged loading duration, caused by the effects of confinement [6]; consequently, more severe structural damage, compared to its free-air counterpart (or external blasts) of equal charge mass, is a natural concomitant of the confinement effect [7].…”

Section: Introductionmentioning

confidence: 99%

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Large inelastic response of polyurea-coated steel plates to confined blast loading

Zhang

Yuan

et al. 2023

Thin-Walled Structures

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“…Confined blast loading, compared to its free-field counterpart, is more complex and destructive due to the multiple shock wave reverberating within the confinement [11]. Although the confined pulse-pressure loading may be influenced by many factors such as confinement geometry [12,13], charge mass [14], standoff distance [15], the extent of venting [16,17] and the degree of confinement [18], the common distinctive features are the amplified peak overpressure, the multiple spikes in its pulse shape and the significant period of quasi-static loading. Undoubtedly, the total impulse from a confined blast loading is significant as a result of the considerable loading period.…”

Section: Introductionmentioning

confidence: 99%