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• W2931784350 abstract "The current study aims to present a three-dimensional numerical analysis to predict the elastic-plastic behavior of a single-curvature, simply supported, composite sandwich panel. The PVC foam core is modeled with isotropic elastic-perfectly plastic properties based on the extended non-linear higher-order sandwich panel theory. An efficient and accurate numerical approach, a combination of differential quadrature, and Newmark methods were implemented to distinguish panel layers’ deformations and stresses. The non-linear governing partial differential equations of motion are discretized and reduced to ordinary differential equations by applying the differential quadrature method (DQM) and are solved using the Newmark method. The various failure modes of the sandwich panel, including facesheet fracture, foam shear fracture, and foam yield were investigated. The stress components and transient responses obtained from the present method are compared with the finite element solutions using commercial software ANSYS and also compare with those reported in the literature and good agreement is achieved. It is observed that significantly less computational time and hardware capacity for the proposed method is required with respect to the finite element solution. A parametric study proved that sandwich panel with H100 foam core has the highest energy absorption and this parameter increases with increasing the span of the panel." @default.
• W2931784350 created "2019-04-11" @default.
• W2931784350 creator A5011888709 @default.
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• W2931784350 date "2019-06-01" @default.
• W2931784350 modified "2023-09-27" @default.
• W2931784350 title "Three-dimensional elastic-plastic pulse response and energy absorption of curved composite sandwich panel using DQ – Newmark method" @default.
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• W2931784350 doi "https://doi.org/10.1016/j.engstruct.2019.03.041" @default.
• W2931784350 hasPublicationYear "2019" @default.
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