Premature Failure of 200T Crane Hook From a Weld Deposit
A crane hook of 200T rated capacity failed suddenly at an indicated load of 143T, while the crane was undergoing a load test. Fracture took place through the intrados of the hook at the region of maximum stress. The jib and other portions suffered subsequent damage following the sudden release of the load. Fracture was wholly of the brittle cleavage type except for a small crescent shaped lip at the top right-hand side. In this zone, fracture occurred at an angle of 45 deg to the general plane of fracture, indicative of failure in shear. Failure of the hook...
Premature Failure of 200T Crane Hook From a Weld Deposit, ASM Failure Analysis Case Histories: Material Handling Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.matlhand.c9001438
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