Deformation and failure modes of aluminum foam-cored sandwich plates under air-blast loading

Li, Ying; Ren, Xianben; Zhang, Xiaoqiang; Chen, Yanfei; Zhao, Tian; Fang, Daining

doi:10.1016/j.compstruct.2020.113317

Cited by 21 publications

(5 citation statements)

References 29 publications

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“…On the other hand, energy dissipation increased with increasing mass of explosive charge [44]. Li et al investigated blast resistance of sandwich panels with Al-2024 front and face sheets and aluminum foam core and stated that energy absorption of sandwich panel increased with increasing mass of explosive charge or decreasing standoff distance [139].…”

Section: The Effect Of Shape and Mass Of Explosive Charge And Standof...mentioning

confidence: 99%

The effect of geometrical parameters on blast resistance of sandwich panels—a review

Gülcan¹,

Günaydın²,

Tamer

2023

Funct. Compos. Struct.

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Many engineering structures, especially the defense applications, need to be reinforced against blast loads due to a nearby explosion. Today, much more attention needs to be given to this issue because of increased exposure to explosions, and natural disasters. Different solutions have been used in the literature to mitigate blast loading effects. One of these applications, sandwich panels, are good candidates for blast loading applications. In a sandwich panel structure, several parameters have considerable effects on the deflections, deformations, and the energy absorption capability. The most important of these parameters are: i) the material and thickness of the front and back face sheets and core; ii) core density and grading; iii) core and face sheet types; iv) filling and stiffening strategies of the core; v) radius of curvature of the panel; vi) mass of explosive charge; and vii) standoff distance. The aim of this paper is to review these critical aspects of blast loading of sandwich panels to provide an overall insight into the state of the art of the application.

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Section: The Effect Of Shape and Mass Of Explosive Charge And Standof...mentioning

confidence: 99%

The effect of geometrical parameters on blast resistance of sandwich panels—a review

Gülcan¹,

Günaydın²,

Tamer

2023

Funct. Compos. Struct.

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“…The total energy absorption capability was increased while either increasing the explosive mass or decreasing the stand-off distance. In addition, the foamed core was prone to play a predominant role in energy absorption [11].…”

Section: Et Al (2021) Air Blast Loadingmentioning

confidence: 99%

“…Research on the use of these materials is also supported by Li et al, who used aluminum foam-cored sandwich panels to be tested against blast loads. The results show that the structural ductility of aluminum alloys is influential when rectangular plates and rigid panels are subjected to sudden lateral stresses [11]. Deqiang et al added to the literature by using adhesively bonded aluminum sandwich panels to examine surface and honeycomb core damage [12].…”

Section: Introductionmentioning

confidence: 99%

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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“…They observed the circular tube filled hexagonal honeycomb Al sandwich panel has good blast resistance. Li et al 8 investigated Al foam core used sandwich deformation modes at varying masses of TNT and stand-off distances. They reported the total energy absorption of the structures increased with either a decrease in the stand-off distance or an increase in the explosive mass.…”

Section: Introductionmentioning

confidence: 99%

Novel design of honeycomb hybrid sandwich structures under air-blast

Patel

2022

Jnl of Sandwich Structures & Materials

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In this study, dynamic explicit analysis was performed to examine the air-blast performance of various hybrid sandwich designs in terms of face plate deflections and energy dissipation capacity under the conventional weapons effects program (CONWEP) air-blast loads ranging from 3 kg to 8 kg trinitrotoluene for stand-off distance ranges from 150 mm to 200 mm. The blast resistance of honeycomb sandwich configurations was evaluated using steel honeycomb with different core topologies, crushable Al foam-filled steel honeycomb, and steel or steel with 3D Kevlar/polypropylene laminate employing fiber metal laminate (FML) front face. For an accurate prediction of the deformation mechanism of all steel parts, the Johnson-Cook (J-C) model was used. The composite failure criteria of Hashin, Puck, and Matzenmiller were implemented to accurately examine the fiber and matrix damage behavior. The novel hybrid design of the honeycomb sandwich structure’s blast resistance is improved by the employment of foam-filled honeycomb, an FML front face, and a circular honeycomb core. In comparison to other sandwich configurations, a novel designed hybrid sandwich construction composed of foam filled circular honeycomb with FML front facing and steel back facing (FCH-1KP0.5) achieved the highest blast resistance due to its lowest face deflection with the smallest plastic dissipation energy.

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Deformation and failure modes of aluminum foam-cored sandwich plates under air-blast loading

Cited by 21 publications

References 29 publications

The effect of geometrical parameters on blast resistance of sandwich panels—a review

The effect of geometrical parameters on blast resistance of sandwich panels—a review

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

Novel design of honeycomb hybrid sandwich structures under air-blast

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