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- Title
FRACTURE FAILURE ANALYSIS OF A MARINE PROPELLER SHAFT.
- Authors
Muhammad, Mohd Moesli; Din Yati, Mohd Subhi; Yusoff, Nik Hassanuddin Nik; Che Isa, Mahdi
- Abstract
In this paper, root cause analysis of the failure of a marine propeller shaft was performed using the standard procedure for failure analysis. The propeller shaft failed during cruising and it was completely broken into two separate pieces. The fracture surface was examined using macroscopic and fractography techniques. It was discovered that the failure of the shaft was due to fatigue failure. Beach marks were found on the fracture surface, with the directions of crack growth being from two points of origin at the sharp corner of the keyway. Further investigation revealed that fretting marks and micro-cracks were present on the keyway surface, which contributed to the crack initiation. Both material composition and hardness results showed that the propeller shaft complied with 316 Stainless Steel grade, which is suitable for marine applications.
- Subjects
FAILURE analysis; PROPELLERS; FRACTURE mechanics; ROOT cause analysis; STAINLESS steel; MARINE natural products
- Publication
Defence S&T Technical Bulletin, 2020, Vol 13, Issue 2, p240
- ISSN
1985-6571
- Publication type
Article