Crashworthiness performance of the designed concave hexagonal structures as filler element in cylindrical shell in multiple load cases

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Published June 22, 2023
DOI: https://doi.org/10.3221/IGF-ESIS.65.10

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Andre Hartawan Mettanadi Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia Aditya Rio Prabowo Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia Bambang Kusharjanta Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia Teguh Muttaqie Research Center for Hydrodynamics Technology, National Research and Innovation Agency (BRIN), Surabaya 60112, Indonesia Fajar Budi Laksono Department of Research and Development, P.T. DTECH Inovasi Indonesia, Salatiga 50742, Indonesia Haris Nubli Department of Marine Design Convergence Engineering, Pukyong National University, Busan 48513, South Korea

Abstract

Safety Impact resistance is defined as the ability of a material to absorb impact energy through controlled failure mechanism. The greater the energy absorption by the crash safety structure, the greater the safety in preventing deformation of the main structure due to impact. In this study, numerical validation, mesh convergence studies and multiple load case studies were performed to investigate crash resistance under axial loading. Numerical validation results show that the similarity between this study and the reference reaches 95%. A deviation of 5% occurs due to different input material properties. The results show that the concave hexagons as filling elements have greater energy absorption capacity than conventional hollow tubes, and the more concave hexagonal structures, the better the energy absorption. Oblique compression was performed in this study and as a result the sample has good impact resistance at low angles and no effect at high angles like 20°.

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Issue
Vol 17 No 65 (2023): July 2023
Section
Miscellanea

How to Cite

Crashworthiness performance of the designed concave hexagonal structures as filler element in cylindrical shell in multiple load cases . (2023). Fracture and Structural Integrity, 17(65), 135-159. https://doi.org/10.3221/IGF-ESIS.65.10
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How to Cite

Crashworthiness performance of the designed concave hexagonal structures as filler element in cylindrical shell in multiple load cases . (2023). Fracture and Structural Integrity, 17(65), 135-159. https://doi.org/10.3221/IGF-ESIS.65.10