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

الموضوعات :

J Faraji Shoaa ¹ (Department of Mechanical Engineering, Malek ashtar University of Technology, Tehran, Iran)
A Davar ² (Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran)
J Eskandari Jam ³ (Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran)
M Heydari Beni ⁴ (Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran)

تاريخ الإرسال : 10 الإثنين , محرم, 1444 تاريخ التأكيد : 14 الإثنين , ربيع الأول, 1444 تاريخ الإصدار : 07 الخميس , جمادى الأولى, 1444

الکلمات المفتاحية: Numerical and experimental methods, Sandwich panel, Impact and damage analysis, Composite grid core,

ملخص المقالة :

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.

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