Dynamic responses of ultralight all-metallic honeycomb sandwich panels under fully confined blast loading

Li, Xue; Kang, Rui; Liu, Cong; Zhang, Zhiyang; Zhao, Zhen-Yu; Lu, Tian Jian

doi:10.1016/j.compstruct.2023.116791

Cited by 13 publications

(3 citation statements)

References 60 publications

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“…Secondly, it excels in capturing the dynamic behavior of materials and the dispersion of blast-related effects, making it particularly suitable for the study of explosion processes. Additionally, the CEL method has demonstrated a robust track record in accurately simulating various explosion scenarios, lending credibility to its application in this research [20,24,25]. While other methods such as ALE and SPH are valuable in their own right, CEL was chosen due to its demonstrated suitability for the specific objectives of this study, where precision in modeling explosion phenomena and their effects is paramount.…”

Section: Numerical Analysis Methodsmentioning

confidence: 76%

Assessment of Soil–Structure Interaction Effects on the Beirut Port Silos Due to the 4 August 2020 Explosion: A Coupled Eulerian–Lagrangian Approach

Jahami,

Halawi,

Temsah

et al. 2023

Infrastructures

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Blast loadings have become the subject of research in recent decades due to the threats they pose to the surrounding medium. On 4 August 2020, a huge explosion occurred in the Port of Beirut that led to massive damages in the medium surrounding it. Researchers have conducted studies in order to estimate the equivalent explosive mass as well as the damage extent left on structures; however, the studies considered the soil–structure interaction by simple methods. For that, this paper aims to understand the effect of explosion on the grain silo structure present at the port with an emphasis on the soil–structure interaction effects. The structure consists of a group of silos resting on a raft footing that is supported by group of driven piles. A soil–structure model analysis is performed in order to investigate the soil behavior, the damage extent in piles, and the soil–structure interaction due to the Beirut explosion using the CEL (Coupled Eulerian–Lagrangian) approach that suits events involving large deformation. The analysis is performed using the ABAQUS/Explicit FEM software (version 6.14) taking into account the properties of soil medium, the contact algorithm at the soil–structure interface, and the boundary conditions in order to better simulate the real field conditions and ensure accurate results. The work is primarily validated through site data such as the crater size and silo damage.

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Section: Numerical Analysis Methodsmentioning

confidence: 76%

Assessment of Soil–Structure Interaction Effects on the Beirut Port Silos Due to the 4 August 2020 Explosion: A Coupled Eulerian–Lagrangian Approach

Jahami,

Halawi,

Temsah

et al. 2023

Infrastructures

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“…Recent studies on honeycomb core sandwich panels, particularly for maritime, military, and vehicle protection, have revealed significant advancements in blast resistance. Li et al [ 25 ] found that ultralight all-metallic honeycomb panels outperform traditional metallic plates in blast resistance, thanks to their energy absorption capabilities. Ghate and Goel [ 26 ] enhanced this efficiency by exploring different aluminum core topologies (square, circular, hexagonal), with multi-layered cores showing superior strength and energy dissipation.…”

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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“…Sandwich structures are typically composed of two high-strength panels and a core. A variety of porous materials, such as pyramid cores [10], lightweight lattice cores [11], corrugated cores [12], foam cores [13][14][15], and honeycomb cores [16][17][18], are commonly used in the core layer. Xin et al [19] successfully prepared foam aluminum sandwich panels using an epoxy resin adhesive.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Three-Point Bending Property of a Sandwich Panel with a Metal Rubber Core

Zhang,

Wang,

Zheng

et al. 2024

Metals

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Sandwich structures and porous materials have been applied widely in various fields due to their excellent mechanical performance, and multifunctional composites will have a significant engineering demand in the future. Studying damped composites’ mechanical properties and failure forms has significant engineering value and significance. However, the current connecting processes for sandwich panels and porous materials must be improved. Therefore, to explore the ambiguity of the connection interface between the core material and panel in sandwich panels, as well as the mechanical properties of such structures, a sandwich panel with a metal rubber core material was prepared using vacuum brazing and cementing processes. Microscopic examinations using scanning electron microscopy and energy-dispersive spectroscopy were conducted to observe the physical bonding mechanism at the interface of the sandwich panel. The results indicate that the brazed sandwich panels exhibited a more uniform and continuous interface than the cemented sandwich panels. This work designs three-point bending compression experiments to investigate the effects of core material thickness, density, and preparation process on the bending mechanical properties of the sandwich panel. Failure modes of the sandwich panel during the experiments are analyzed. The experimental results show that the failures of the brazed sandwich panels are attributable to the bending deformation of the panel and the shear failure of the metal wire core material. The cemented sandwich panels exhibit separation failures in the area below the indenter and at both ends of the panel. The core material’s thickness and density significantly influence the bending performance of the sandwich panels. An increase in the core material’s thickness and density effectively enhances the sandwich panels’ peak load and energy absorption capacity.

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Dynamic responses of ultralight all-metallic honeycomb sandwich panels under fully confined blast loading

Cited by 13 publications

References 60 publications

Assessment of Soil–Structure Interaction Effects on the Beirut Port Silos Due to the 4 August 2020 Explosion: A Coupled Eulerian–Lagrangian Approach

Assessment of Soil–Structure Interaction Effects on the Beirut Port Silos Due to the 4 August 2020 Explosion: A Coupled Eulerian–Lagrangian Approach

Fluid based sandwich panel core structure for blast load mitigation

Experimental Investigation of the Three-Point Bending Property of a Sandwich Panel with a Metal Rubber Core

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