Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

Experimental Study of Behavior of Sandwich Panel with Metal/Glass Fiber Trapezoidal Core under Quasi-static Axial Loading

Authors
Mojtaba Lashgaroo 1
Ali Dadrasi 2
Vali Parvaneh 3
Hossein Taghi poor 4
1 1-PhD students, Department of Mechanical Engineering, Islamic Azad University of Shahrood, Shahrood, Iran 2-Department of Mechanical Engineering, Technical and Vocational University, Tehran, Iran
2 Assistant Professor, Department of Mechanical Engineering, Hakim Sabzevari University, Sabzevar, Iran
3 Assistant Professor, Department of Mechanical Engineering, Islamic Azad University of Shahrood Branch, Shahrood, Iran
4 Assistant Professor, Department of Mechanical Engineering, Velayat University, Iranshahr, Iran
10.30506/ijmep.2023.1988328.1922
Abstract
The trapezoidal shape of composite corrugated cores has made it possible to increase their resistance against destruction. In this article, the effect of changing the geometric parameters of trapezoidal core edge angle and fiber angle in the porcelain layer of sandwich panels under quasi-static compressive loading has been studied. In the construction of composite panels used a combination of glass and metal fibers. The angle of the edges of the core is 46, 52, and 58 degrees, and the angle of the fibers in the porcelain layer is 30, 60, and 90 degrees are chosen. The absorbed energy and maximum force in the form of destruction samples were discussed after the quasi-static compression test. The results have shown that increasing the fiber angle from 30 to 90 degrees can increase the maximum force by 123% and energy absorption by 260%. The mechanism of plastic deformation of metal fibers and breakage of glass fibers in the area of plastic hinge formation at the edges of the core are the main mechanisms of destruction, and no delamination was seen in the plates. Also, the separation of the core from the top of the composite was not observed in the panel due to the high adhesion of the core and the tops of the plates, which indicates the high quality of these panels.
Keywords
Energy absorption
Glass fibers
Metal fibers
Quasi-static loading
Sandwich panel

Subjects

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  • Receive Date 07 February 2023
  • Revise Date 07 June 2023
  • Accept Date 09 October 2023