Dynamic response and failure of carbon/epoxy composite sandwich subjected to underwater impulsive loading

Ren, Peng; Ding, Chen; Liu, Yuxi; Ye, Renchuan; Wu, Jie; Yan, Ma; Zhao, Wei; Zhang, Wei

doi:10.1016/j.ijimpeng.2020.103614

Cited by 27 publications

(7 citation statements)

References 45 publications

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“…Foam-core sandwich composites have been garnering popularity in the research community owing to their high-specific stiffness, specific strength, low density, and lightweight characteristics [ 1 , 2 , 3 ]. The applications of sandwich composites have evolved rapidly, with extensive use in aerospace, rail transportation, wind power blades, naval structure design, and other fields [ 4 , 5 , 6 ]. In the vacuum-assisted resin infusion (VARI) molding process of sandwich composites, the foam-core grooves and internal holes improve the infiltration of the fiber fabric of the upper and lower composite skins [ 7 ], thereby increasing the bond strength between the structural layers and enhancing the strength of the sandwich composite material.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Load-Bearing Capacity of Lattice Cell Warren Truss Slot Resin-Stiffener-Reinforced Foam Sandwich Material

Xueshan

Tian²,

Jin³

et al. 2023

Materials

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This study optimized and proposed a Warren truss slot-hole structure with a double-sided, square shallow slot and vertical and horizontal corrugated symmetry, achieved with inclined holes based on the stability and a good bearing capacity of an inclined strut truss structure. The tetrahedral truss lattice cells were obverse and reverse-staggered in the central core of the structure. Compared with the double-sided, square shallow groove cylindrical straight hole, the resin consumption of the Warren truss slot holes was similar to that of a vacuum-assisted resin infusion; however, the external flat compression force of the Warren truss slot holes on the resin stiffener structure doubled, and its bending contact force increased by approximately 1.5 times. Furthermore, the resulting Warren truss-slotted resin structure exhibited a late failure time. Compared with the double-sided, square shallow groove cylindrical straight hole foam-core sandwich composite, the Warren truss slot resin-stiffener-reinforced sandwich composite exhibited an increase of 4.7 kN in the flat compression load, an improvement of ~40% in flat compressive strength performance, an increase of ~0.58 kN in the bending load, and an improvement of ~60% in the bending strength, demonstrating its better bearing strength performance.

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Section: Introductionmentioning

confidence: 99%

Preparation and Load-Bearing Capacity of Lattice Cell Warren Truss Slot Resin-Stiffener-Reinforced Foam Sandwich Material

Xueshan

Tian²,

Jin³

et al. 2023

Materials

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“…The dynamic mechanical characters played an indispensable role in the study of the application of a novel composite sandwich structure, especially the impact resistance performance. The common impact type includes projectile impacting load, [17,18] high explosive burn impacting [19,20] and underwater explosive impacting [21][22][23] in actual situations. Tang et al [24] investigated the effect of impact velocity and the density of projectile on the quasistatic and impact resistance performance of CFRP/ aluminum foam sandwich structure.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the dynamic behavior of composite gradient double‐arrow auxetic structure under local impact load

Zeng

et al. 2022

Polymer Composites

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Based on the design concept of functionally graded materials, the composite gradient double-arrow auxetic structures were designed and fabricated. The thickness of core layers demonstrates an increasing trend for positive gradient structure, while a decreasing trend for negative gradient structure. The thickness of core layers keeps constant for homogeneous structure. The dynamic response and failure modes of the double-arrow auxetic structure with different gradient distributions of wall thickness were obtained by foam projectile impact experiments. The influence of the gradient distribution of core wall thickness on the impact resistance of composite double-arrow auxetic structures under local impact load was investigated. The results demonstrated that the gradient distribution of core wall thickness has an important influence on the dynamic response and failure modes of the structure. The negative gradient auxetic structure revealed more excellent impact resistance compared with the positive gradient auxetic structure. In addition, the response of the gradient double-arrow auxetic structure under local impact load was simulated by ABAQUS/Explicit, and the simulation results were in good agreement with the experimental results. Combined with the experimental and numerical simulation results, it was found that the negative gradient distribution of core wall thickness had an obvious improvement on the impact resistance of composite double-arrow auxetic structure under local impact load.

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“…Zhou et al 27 numerically analyzed the dynamic response of square honeycomb-cored sandwich plates made from carbon fiber reinforced composites subjected to underwater shock waves. Ren et al 28 experimentally evaluated the underwater impulse resistance of the carbon/epoxy composite sandwich with the PVC foam core. Overall, research on the dynamic response of sandwich structures with fiber reinforced composite materials subjected to underwater blast loading are still in an initial stage, and relevant analysis need to be performed.…”

Section: Introductionmentioning

confidence: 99%

Dynamic response of composite sandwich structures with the honeycomb-foam hybrid core subjected to underwater shock waves: Numerical simulations

Zhou

Guo

Rongzhong

et al. 2022

Journal of Composite Materials

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The dynamic response of composite sandwich structures with honeycomb-foam hybrid cores subjected to underwater shock waves was investigated by numerical simulations. The deformation process, core compression, momentum transmitting characteristics, and energy absorbing properties of sandwich structures subjected to underwater shock waves with different initial pressures were analyzed. The dynamic responses of the composite sandwich with different core configurations were also compared. The results show that the composite sandwich structures can provide superior protection from underwater shock waves than mass equal laminate plates and the sandwich structures with hybrid cores have better performance than that with empty honeycomb cores when subjected to underwater shock waves. The research can provide reference for the lightweight design and optimization of protective structures against underwater blast loading.

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Dynamic response and failure of carbon/epoxy composite sandwich subjected to underwater impulsive loading

Cited by 27 publications

References 45 publications

Preparation and Load-Bearing Capacity of Lattice Cell Warren Truss Slot Resin-Stiffener-Reinforced Foam Sandwich Material

Preparation and Load-Bearing Capacity of Lattice Cell Warren Truss Slot Resin-Stiffener-Reinforced Foam Sandwich Material

Investigation on the dynamic behavior of composite gradient double‐arrow auxetic structure under local impact load

Dynamic response of composite sandwich structures with the honeycomb-foam hybrid core subjected to underwater shock waves: Numerical simulations

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