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Nurul Muhayat
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Journal : Civil Engineering Journal

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Analysis of Tetrachiral Sandwich Structures at High-Velocity Impact: Influence of the Applied Material and Projectile Core Geometry Maulana, Sultan; Prabowo, Aditya Rio; Wibowo, Wibowo; Do, Quang Thang; Muttaqie, Teguh; Muhayat, Nurul; Fitri, Siti Nurlita
Civil Engineering Journal Vol 10, No 10 (2024): October
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2024-010-10-017

Abstract

This research involved ballistic impact analysis on a tetrachiral sandwich structure in which the shapes of the circular nodes in the tetrachiral core are modified into polygonal shapes, namely a square, hexagon, and octagon. The objectives of this study were to observe the effect of a modified sandwich tetrachiral structure core, investigate the effect of the projectile geometry, and calculate the material performance of the structure. This research was conducted using numerical analysis utilizing the finite element method. The simulation methodology was validated through a benchmarking study, the results of which showed an error below 6%. The findings show that the material with the best performance was Armox 500T, at 5033 J. The most difficult projectile to withstand was conical, followed by ogive, hemispherical, and blunt. The results of the core modification on the tetrachiral sandwich structure show that the octagonal core had better energy absorption, by 2.8%, compared to the circular core. Modifying the node geometry in the tetrachiral core and then analyzing it with stress and strain contours are the novel aspects of this research. Doi: 10.28991/CEJ-2024-010-10-017 Full Text: PDF
Co-Authors Aditya Rio Prabowo Ari Prasetyo Bambang Margono Chamim, Moch. Do, Quang Thang Dody Ariawan Eko Surojo Fitri, Siti Nurlita Majid, Imam Abdul Maulana, Sultan Muttaqie, Teguh Singgih Dwi Prasetyo Sukmaji Indro Cahyono, Sukmaji Indro Syamsul Hadi Teguh Triyono Titis Srimuda Pitana, Titis Srimuda Triyono Triyono Triyono Ubaidillah Ubaidillah Wibowo Wibowo Zainal Arifin