Manufacturing Technology 2022, 22(2):240-253 | DOI: 10.21062/mft.2022.023

Flexural and Out-of-Plane Compression Performance of Hexagonal Rubber Wood Core Sandwich with Increasing Cell Wall Thickness

Jennise Tan Teng Teng ORCID...1, Mohd Yuhazri Yaakob ORCID...2, Mohd Amirhafizan Bin Husin ORCID...2, Kamarul Amir Mohamed ORCID...2, Myia Yuzrina ORCID...3, W. Lau ORCID...4
2 Faculty of Mechanical and Manufacturing Engineering Technology, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
3 Department of Mechanical Engineering, Politeknik Merlimau, Karung Berkunci 1031, Pejabat Pos Merlimau, 77300 Merlimau, Melaka, Malaysia
4 Faculty of Engineering and Technology, Multimedia University, 75450 Jalan Ayer Keroh Lama, Melaka, Malaysia
5 PT. Suar Utama Produktifitas, Slipi - Jakarta Barat 11410 - DKI Jakarta, Indonesia

This paper investigates the rubber wood honeycomb core by manipulating its cell wall thickness. Rubber wood honeycomb core was fabricated with cell walls range from 1 mm to 3 mm. The impacts of the cell geometrical parameters on the flexural and out-of-plane compression performance are studied. In the case of solid rubber wood without facesheet, the density is much higher than those rubber wood honeycomb composites. The failure can be disastrous without facesheet under bending. Rubber wood honeycomb sandwiches are able to offer the similar specific flexural strength with lower density. With increasing wall thickness from 1 mm to 3 mm, the specific flexural strength increased by 12.32 %. Meanwhile, specific compressive strength improved by 11 % from 1 mm to 2 mm. However, its specific strength dropped by 3.55 % when the wall thickness at 3 mm. Minimum improvement in the compressive strength per density has caused the decrement.

Keywords: Flexural, Honeycomb Sandwich, Rubber Wood, Wall Thickness, Wooden Core
Grants and funding:

Authors would like to thank Ministry of Energy, Science, Technology, Environment and Climate Change by providing Grant FRGS/1/2017/TK03/FTK-AMC/I00027.

Received: September 30, 2021; Revised: March 3, 2022; Accepted: April 11, 2022; Prepublished online: April 12, 2022; Published: May 15, 2022  Show citation

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Teng Teng JT, Yaakob MY, Amirhafizan Bin Husin M, Mohamed KA, Yuzrina M, Lau W. Flexural and Out-of-Plane Compression Performance of Hexagonal Rubber Wood Core Sandwich with Increasing Cell Wall Thickness. Manufacturing Technology. 2022;22(2):240-253. doi: 10.21062/mft.2022.023.
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