Experimental and numerical investigation on mechanical properties of bending and compressive behaviour of carbon-epoxy sandwich panel with novel M-shaped core

Authors

1 Ph.D. Student, Department of Mechanical engineering, Islamic Azad University, Aliabad-e-Katul, Iran

2 Islamic Azad University, Sari branch

Abstract

Present paper has experimentally and numerically investigated the mechanical behaviour of composite sandwich panel with novel M-shaped lattice core subjected to three-point bending and compressive loads. For this purpose, a composite sandwich panel with M-shaped core made of carbon fiber has been fabricated in this experiment. In order to fabricate the sandwich panels, the vacuum assisted resin transfer molding (VARTM) has been used to achieve a laminate without any fault. Afterward, polyurethane foam with density of 80 Kg/m3 has been injected into the core of the sandwich panel. Then, a unique design was presented to sandwich panel cores. The study of force-displacement curves obtained from sandwich panel compression and three-point bending tests, showed that an optimum mechanical strength with a considerable lightweight. It should be noted that the experimental data was compared to numerical simulation in ABAQUS software and it turned out that numerical results are in good agreement with experimental ones and make it possible to use simulation instead of time-consuming experimental procedures for design and analysis.

Keywords

References

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Journal of Solid and Fluid Mechanics
Volume 12, Issue 1
March and April 2022
Pages 67-84

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