Structural response of the U-type corrugated core sandwich panel used in ship structures under the lateral quasi-static compression load

Liu, Kun; Zong, Shuai; Li, Yao; Wang, Zeping; Hu, Zhiqiang; Wang, Zili

doi:10.1016/j.marstruc.2022.103198

Cited by 48 publications

(15 citation statements)

References 52 publications

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“…To display the animation of the plate when it is deformed when subjected to an explosion load, the time period used was 1.5 ms. In this period, the plate goes through a compression process, as mentioned by Liu et al [19]. In stages I and II, the honeycomb core undergoes unstable deformation, and the panels bend and press against each other.…”

Section: Meshing Strategymentioning

confidence: 97%

“…where pa is the ambient pressure, t is overall duration, ta is the arrival time, td is the positive phase's duration, and θ is the time decay constant [8]. The peak pressure of the blast wave (P) can be written using Equation 5.…”

Section: Figure 1 the Typical Blast Pressure Profilementioning

confidence: 99%

“…Under ballistic impact, Yu et al found that in the same acreage mass, a Y-shaped core sandwich structure has better impact resistance and energy absorption capacity than a laminated structure [6]. Liu et al tested the U-type corrugated sandwich panel model under a quasi-static compression load and the results showed how the compression process occurred in the sandwich panel structure [19]. Research related to honeycomb core geometry was also carried out by Ma et al and concluded that in average stress, pyramid sandwiches outperformed square honeycomb, eggbox, and Miura-Ori in compression, with improvements of 73%, 130%, and 342%, respectively [7].…”

Section: State Of the Artmentioning

confidence: 99%

“…In stage I and stage II, the core panels are unstable and warp from the middle, and then the core panels are in contact with each other. In stage III, the core panels approach compaction [19].…”

Section: Liu Et Al (2022)mentioning

confidence: 99%

“…This study did not discuss the effect of the core shape of the sandwich panel on its response to blast loading. This was refined by Yu et al, Ma et al, and Liu et al, who used several types of honeycomb cores, including Y-shaped cores, kirigamiinspired pyramid foldcores, and U-type corrugated cores with various types of loading [6][7][8]. Sandwich panel cores were also investigated by Zhu and Lu, who studied the structural response of sandwich panels from blast loads, especially for pyramidal cores, diamond-celled cores, corrugated cores, hexagonal honeycomb cores, and square honeycomb cores [9].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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: Meshing Strategymentioning

confidence: 97%

Section: Figure 1 the Typical Blast Pressure Profilementioning

confidence: 99%

Section: State Of the Artmentioning

confidence: 99%

Section: Liu Et Al (2022)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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Experimental analysis of quasi‐static indentation in composite sandwich multilayers with corrugated core

Vahidimanesh,

Gazor,

Farrokhabadi

2024

Polymer Composites

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This study examines the effects of multilayering in sandwich panel composite structures with different corrugated core configurations under quasi‐static indentation loading. The panels were fabricated using woven glass fibers and epoxy resin via the Vacuum Infusion Process. Experiments were conducted using two hemispherical cylindrical indenters with a diameter of 20 mm (ID = 20 mm) and 10 mm (ID = 10 mm) and the behavior of the composite structure in terms of contact force and fracture mechanisms for different core corrugations (square and butterfly) were investigated in two ways with foam and without foam. The experimental results demonstrate that, among corrugated core geometries without foam, butterfly cores outperform square cores in terms of structural strength, maximum force, moment force, energy absorption, specific energy absorption, and displacement until full indentation. Moreover, the butterfly core shows a higher peak load and different failure mechanisms compared to the square core. Under loading with a 10 mm indenter, the butterfly core without foam only experienced perforation in the loading area, without fracture completely. Also, adding foam did not change failure mechanisms and mechanical behavior in the butterfly geometry. However, in the square geometry, foam filled gaps between the core, preventing fracture completely and leading to only perforation in the loading area, unlike the specimen without foam. The visual analysis during the quasi‐static indentation process revealed several significant damage mechanisms, including matrix cracking, fiber breakage, delamination, buckling and crushing of cell walls, damage to top sheets, core separation, and complete indentation of the samples.Highlights Delamination and indentation failure mechanisms were seen on the butterfly core. Skin indentation and rib fracture failure mechanisms were seen on the square core. Butterfly corrugated cores revealed the best performance without/with foam. The core shape was more effective on the strength than the foam addition.

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Nonlinear thermo-mechanical dynamic buckling and vibration of FG-GPLRC circular plates and shallow spherical shells resting on the nonlinear viscoelastic foundation

Bui,

Vu,

Pham

et al. 2024

Arch Appl Mech

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Structural response of the U-type corrugated core sandwich panel used in ship structures under the lateral quasi-static compression load

Cited by 48 publications

References 52 publications

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

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

Experimental analysis of quasi‐static indentation in composite sandwich multilayers with corrugated core

Nonlinear thermo-mechanical dynamic buckling and vibration of FG-GPLRC circular plates and shallow spherical shells resting on the nonlinear viscoelastic foundation

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