Failure mechanism and impact resistance of all GFRP Miura-ori with platforms sandwich structure under low-velocity impact experiments

Deng, Yaxin; Liang, Xupeng

doi:10.1080/15376494.2023.2215230

Cited by 3 publications

(2 citation statements)

References 38 publications

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“…While under 200 J energy impact, the impact resistance of the base position is better than that of the node position. However, the impact resistance of the node position is always stronger than that of the base position within the impact energy of 15–200 J for the Miura sandwich panel 17 . The impact resistance of the X‐type foldcore sandwich panel is related to the impact energy.…”

Section: Resultsmentioning

confidence: 97%

“…Furthermore, Scholars have further optimized the foldcore to obtain an S‐type foldcore sandwich panel, which has studied the out‐of‐plane compression, 13 shear, 14 low‐velocity impact, 15 and ballistic impact 16 . However, in studying the low‐velocity impact resistance of the three configurations, it was found that the low‐velocity impact resistance at the node position was better than that at the base position, regardless of the impact energy 17–19 . The uneven impact resistance leads to the decline of the overall impact resistance of the structure, thus affecting the application of the foldcore sandwich structure in practical engineering.…”

Section: Introductionmentioning

confidence: 99%

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Experimental investigation on response mechanism and impact resistance of glass fiber reinforced polymer X‐type foldcore sandwich panel subjected to low‐velocity impact experiments

Deng,

Liang,

et al. 2024

Polymer Composites

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In this paper, a new type of foldcore sandwich panel (tentatively called X‐type foldcore sandwich panel) is proposed by combining the X‐type corrugated sandwich panel and the Miura‐ori sandwich panel. The experimental specimens are prepared by using a glass fiber‐reinforced polymer. To systematically reveal the low‐velocity response mechanism and impact resistance of sandwich panels, a hemispherical impactor is used to impact panels. The effects of impact energy, impact position, diameter of tup, and impact mass on low‐velocity impact performance of X‐type foldcore sandwich panels are considered. The damage morphology, response process, and failure mechanism are analyzed under different working conditions. The results show that under the impact of 75 and 125 J, the impact resistance of the node is better than that of the base. Under 200 J impact, the impact resistance of the base is better than that of the node. Compared with the traditional foldcore sandwich panel, the new configuration reduces the impact resistance difference between two positions (node and base).Highlights A new foldcore sandwich panel is proposed. The impact effect of energy, mass, position, and tup diameter is investigated. Damage morphology, response process, and impact resistance are analyzed. The new structure reduces differences in impact resistance.

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Section: Resultsmentioning

confidence: 97%