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CSME 2025/12
Volume 46 No.6
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643-650
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Finite Element Analysis of Novel Hexagonal Honeycomb Sandwich Beam Performance under a Three-Point Bending Effect
Desi Gustiani a, Ömer SEÇGİN b, Ahmet KOLİP c and Hasan Ali ÇELİK c
aPhD Student, Department of Mechanical Engineering, Sakarya University of Applied Sciences, Sakarya, Türkiye.
bAssociate Professor, Department of Mechanical Engineering, Sakarya University of Applied Sciences, Sakarya, Türkiye.
cFull Professor, Department of Mechanical Engineering, Sakarya University of Applied Sciences, Sakarya, Türkiye
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Abstract:
Sandwich structures have significant potential for application in the aerospace, automotive, shipping, and engineering industries due to their lightweight, high specific strength, and high specific stiffness. This study examines the bending characteristics of a hexag¬onal honeycomb sandwich beam made of aluminum alloy (6061-T6) material. In this work, we create some circular elements into the hexagonal honeycomb corners. We used the finite element method to conduct three-point bending test. The dimensions of the cell are as follows: length (l = 5 mm), thickness (t = 0.4 mm), and the diameter of the circle hexagonal (Ø CH) has four variations: 1 mm, 2 mm, 3 mm, and 4 mm. The numerical simulation includes a three-point bending test based on the ASTM C-393 standard. The results showed that the increase in compression displacement contributes to increased interaction among honeycomb cores, therefore increasing the bending deformation of sandwich beams. CH 1 demonstrates a significant 64% enhancement in reaction force when compared to the traditional honeycomb. The results of this study indi¬cate that CH 1 is a highly effective option for applying the novel honeycomb sandwich beam. The traditional honeycomb structure demonstrates more dissipation of deformation energy compared to CH 1.
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Keywords: Three-point bending, Sandwich beam, Honeycomb, New hexagonal honeycomb core.
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©
2025
CSME , ISSN 0257-9731
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