EFFECT OF STATIC AND HARMONIC LOADING ON THE HONEYCOMB SANDWICH BEAM BY USING FINITE ELEMENT METHOD

IF 10.1 2区工程技术 Q1 ENGINEERING, MECHANICAL Facta Universitatis-Series Mechanical Engineering Pub Date : 2022-07-28 DOI:10.22190/fume220201009s

B. Safaei, Emmanuel Chukwueloka Onyibo, Dogus Hurdoganoglu

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引用次数: 14

Abstract

The aim of this paper is to present a proposed honeycomb core shape and compare it with a normal hexagonal shape core in a sandwich beam. The sandwich cores are simulated in finite element with different materials; aluminum and epoxy-carbon with six layers are used as face sheet and the results are compared to those obtained theoretically. Simulation of 3-point bending test is performed in commercial software ANSYS to verify the analytical results with the numerical ones. Hence, for simplicity one layer of the skin is used on the equivalent model of sandwich for lesser computational time and more accurate evaluation. Simulation of harmonic analysis of hexagonal core and proposed core shape is carried out in frequency domain to identify the core with less deformation under high frequency and it can withstand harmful effects. The proposed core shape model having the same cell numbers and material as the normal hexagonal model is compared with experimental results; it is observed that the proposed core shape model has good flexural stiffness, resonance, fatigue, and stress resistance at a higher frequency.

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用有限元法研究静、谐波荷载对蜂窝夹层梁的影响

本文的目的是提出一种蜂窝核形状，并将其与夹层梁中正常的六角形核进行比较。对不同材料的夹层芯进行了有限元模拟;采用六层铝和环氧碳作为工作面，并与理论计算结果进行了比较。在商业软件ANSYS中进行了三点弯曲试验的仿真，以验证分析结果与数值结果的正确性。因此，为了简单起见，在三明治等效模型上使用一层皮肤，以减少计算时间和更准确的评估。在频域上对六角形铁芯和所提出的铁芯形状进行了谐波仿真分析，以确定高频下变形较小且能承受有害影响的铁芯。并与实验结果进行了比较，得到了具有相同单元数和相同材料的芯形模型;结果表明，所提出的芯形模型在较高频率下具有良好的抗弯刚度、共振性、疲劳性和抗应力性。

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来源期刊

Facta Universitatis-Series Mechanical Engineering ENGINEERING, MECHANICAL-

CiteScore

14.40

自引率

2.50%

发文量

审稿时长

6 weeks

期刊介绍： Facta Universitatis, Series: Mechanical Engineering (FU Mech Eng) is an open-access, peer-reviewed international journal published by the University of Niš in the Republic of Serbia. It publishes high-quality, refereed papers three times a year, encompassing original theoretical and/or practice-oriented research as well as extended versions of previously published conference papers. The journal's scope covers the entire spectrum of Mechanical Engineering. Papers undergo rigorous peer review to ensure originality, relevance, and readability, maintaining high publication standards while offering a timely, comprehensive, and balanced review process.