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All Journal Jurnal Rekayasa Mesin
Daffa Mandala Adinata
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Mechanical Engineering

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Fracture and Failure Analysis of Wheel Bolt on Main Landing Gear CN235 220M Aircraft Dewa, Rando Tungga; Daffa Mandala Adinata; Ida Farida; Sovyan Aritonang; Hadi Wahyudi
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2025): Volume 20, Nomor 1, April 2025
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v20i1.6291

Abstract

The wheel bolt of the CN235 220M aircraft is a type of fastener crucial for maintaining air pressure within the tire. It was discovered that this component fractured during operation. This study aims to conduct forensic analysis on the mechanism and causes of material failure through micro and macro morphological observations, chemical composition tests, microstructural analysis, and hardness testing on the fractured bolt. Micro-morphology results showed a crack tip in the initiation zone, which became a stress concentration point. Additionally, striations caused by cyclic loading were observed. EDS analysis revealed a high oxygen content in the initiation zone, indicating a corrosion-assisted crack. As cyclic loading continued, it gradually eroded the bolt's cross-sectional area until the material's fatigue led to final fracture.
Co-Authors Hadi Wahyudi Ida Farida Rando Tungga Dewa Sovyan Aritonang