Numerical and Experimental Analysis of Impact and Damage on Composite Sandwich Panels with Grid-Stiffened Core

Journal of Solid Mechanics

مقاله 8، دوره 14، شماره 4، اسفند 2022، صفحه 499-513   

نوع مقاله: Research Paper

شناسه دیجیتال (DOI): 10.22034/jsm.2022.1926526.1688

نویسندگان

J Faraji Shoaa¹؛ A Davar^{* 2}؛ J Eskandari Jam²؛ M Heydari Beni²

¹Department of Mechanical Engineering, Malek ashtar University of Technology, Tehran, Iran

²Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran

چکیده

A composite grid sandwich panel consists of a core with a composite grid structure and two faces on both sides of the core. This study investigated low-velocity impact in grid sandwich panels with grid cores experimentally and numerically by constructing and performing experimental tests using Abaqus finite element software. In the experimental part, three sandwich panels with grid cores were made for the low- velocity impact test. In the numerical part, three-dimensional elements were used, and damage was solved via programming in the Fortran language in Abaqus software. The results showed that the use of foam in the core of these structures reduced deflection due to impact despite a slight increase in the final weight of the structures.

کلیدواژه‌ها

Impact and damage analysis؛ Sandwich panel؛ Composite grid core؛ Numerical and experimental methods

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