Dynamic response of laser-welded corrugated sandwich panels subjected to plane blast wave

Liu, Kun; Li, Ké; Sha, Yanyan; Guang-ming, WU; Wang, Peng; Wang, Zili

doi:10.1016/j.ijimpeng.2022.104203

Cited by 16 publications

(5 citation statements)

References 33 publications

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“…There are multiple approaches for the blast and impulsive loads simulation, including the CONWEP method [42][43][44][45] and the Lagrangian-Eulerian method (LEM). [46][47][48][49] These two types of methods have individual benefits and shortcomings in explosion simulation calculations. Note that LEM was implemented in the commercial software LS-DYNA.…”

Section: Application Of Blast Loading and Boundary Conditionmentioning

confidence: 99%

Dynamic responses and damage evolution of conformal radome composites under blast loading

Luo,

Wang,

Zhang

2023

Polymer Composites

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In this paper, the dynamic responses and damage evolution of two types of conformal radome composites (CRCs), namely single‐window conformal radome (SWCR) and multi‐window conformal radome (MWCR), under blast loading, were investigated using numerical methods. The results show that the local dynamic response of the conformal window is dominating. The window deformation of SWCR is larger than that of MWCR under the same scaled distance, and the MWCR exhibits better blast resistance. The increase in window size causes the reduction of the bending stiffness of CRCs. The obvious stress concentration appears in the notch of carved foam cores, caused by the window effect. The conformal windows are weak parts for the CRCs under the blast loading. It was revealed that the damages of CRCs are mainly concentrated at the edges, center, and diagonal areas of the conformal windows.Highlights Designed two types of conformal radome composites with hierarchical configuration. Established the finite element (FE) models of two types of conformal radome composites Revealed the dynamic responses and damage evolution of conformal radome composites under blast loading.

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Section: Application Of Blast Loading and Boundary Conditionmentioning

confidence: 99%

Dynamic responses and damage evolution of conformal radome composites under blast loading

Luo,

Wang,

Zhang

2023

Polymer Composites

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“…Sandwich panels can mitigate impact loading through plastically deforming the core structure and the front plate, dissipating the impact energy [ 19 ]. Al-Rifaie et al [ 20 ], Liu et al [ 21 ], Alberdi et al [ 19 ], and Kumar and Patel [ 22 ] examined the blast resistance of sandwich panels with various corrugated core structures. While Cheng et al [ 23 ] and Lu et al [ 24 ] studied how tubular core structure assist in mitigating the blast.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

“…Al-Rifaie et al [ 20 ] examined low-cost aluminum sandwich panels with various unconnected corrugated core layers and topologies, finding the trapezoidal topology most effective in minimizing core deformation. Liu et al [ 21 ] studied laser-welded corrugated sandwich panels, noting better blast resistance and lower deformation in the longitudinal direction of the core. Alberdi et al [ 19 ] compared different core shapes under blast loads, discovering that diamond-folded cores excelled with smaller blasts, while hexagonal and square honeycomb cores were superior with larger blasts, and orthogonal folded cores showed the least backplate deflection.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

Fluid based sandwich panel core structure for blast load mitigation

AlAhmed,

Bahroun,

Hassan

2024

Heliyon

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“…The considerations in the matter of explosions in contact with structures arose the need for improving the strength of structures against impact loads, such as explosive loads, in addition to the dynamic and static loads while designing structures (Houari et al 2021;Nguyen et al 2019;Savaş et al 2021). Within this scope, numerous studies have recently investigated explosive loads and structural elements via various field tests in the literature (Abbas et al 2019;Al-Shaarbaf, Al-Azzawi, and Abdulsattar 2018;Goswami, Ganesh, and Das 2022;Hanifehzadeh et al 2021;Liu et al 2022;Maazoun et al 2019;Peng et al 2022;Tarlochan 2021;Wei, Li, and Wu 2020). In such tests, various difficulties emerged due to high economic costs, long preparation periods, risks of damaging data collection tools during tests, and specialized permissions to conduct explosion tests have emerged.…”

Section: Introductionmentioning

confidence: 99%

An experimental study on the blast responses of hollow core concrete slabs to contact explosions

Savaş

Bakır²

2022

rdlc

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Measures taken against preventing damages in structures against explosive load are a popular matter of investigation among researchers. Generally, numerous studies were conducted on reinforcement materials for outer surfaces, reinforcement design, and utilizing fibers produced from various materials. In this study, a hollow-core slab was manufactured with concrete, which had a regular strength, and a design that discharged the explosive energy upon contact explosion via the hollow cores of the slabs and prevented the redirection of the explosive energy to the area below the slabs was investigated. Because the hollow-core slab in the study did not have any lateral reinforcement, the utilization of the tensile strength of the concrete proved advantageous. For this purpose, in the experimental tests of the study, contact explosions were conducted on hollow-core slabs with hollow diameters of 14 cm for each core. Before the explosion tests, the TNT equivalent of 910gr explosive was determined by performing the TNT equivalent tests. In the explosion tests of prepared hollow core concrete slabs, 125 gr, 250 gr, 375 gr, and 500 gr dynamites were used as the explosive materials. In conclusion, the explosive loads that the slabs could withstand were calculated and various slabs with distinctive hollow-core diameters were determined depending on the amount of the explosives.

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Dynamic response of laser-welded corrugated sandwich panels subjected to plane blast wave

Cited by 16 publications

References 33 publications

Dynamic responses and damage evolution of conformal radome composites under blast loading

Dynamic responses and damage evolution of conformal radome composites under blast loading

Fluid based sandwich panel core structure for blast load mitigation

An experimental study on the blast responses of hollow core concrete slabs to contact explosions

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