Numerical and Experimental Static Bending Analysis of Composite Sandwich Panels with Grid-Stiffened Cores Before and After Transverse Impact Loading

سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 157

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شناسه ملی سند علمی:

JR_ADMTL-15-1_001

تاریخ نمایه سازی: 6 اردیبهشت 1401

چکیده مقاله:

Nowadays grid structures are considered as one of the most useful composites because of their various applications. Since grid structures are vulnerable to impact loads, they should be investigated under such loadings. The present paper studies the low-velocity impact loading of sandwich panels with grid-stiffened cores using both experimental and numerical simulations. In addition to the impact behaviour and the resultant damage of the sandwich panels, the behaviour of these structures under three-point bending was studied before and after the impact loading. The results were provided for impact and bending loadings separately. Then the effect of impact loadings on bending strength was investigated and it was found that the impact loading decreases the bending strength. A consistency between numerical and experimental results was also observed, which confirms the applicability of the Finite Element Method (FEM) in simulating the behaviour of such structures under impact and bending loads, while saving lots of time, efforts and costs.

نویسندگان

Ali Asghar Davoodabadi

Department of Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran

Ali Davar

Faculty of Materials and Manufacturing Processes, Malek Ashtar University of Technology, Iran

Mohsen Heydari Beni

Department of Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran

Jafar Eskandari Jam

Composite Research Centre, Malek Ashtar University of Technology, Tehran, Iran

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