Fatigue Cracking of Welded Tubular Posts in a Carrier Vehicle Because of the Presence of Inclusions That Acted as Stress Raisers
Two tubular AISI 1025 steel posts (improved design) in a carrier vehicle failed by cracking at the radius of the flange after five weeks of service. The posts were two of four that supported the chassis of the vehicle high above the wheels. The original design involved a flat flange of low-carbon low-alloy steel that was welded to an AISI 1025 steel tube, and the improved design included placing the welded joint of the flange farther away from the flange fillet. Investigation (visual inspection and chemical analysis) supported the conclusion that the failures in the flanges of improved design...
Fatigue Cracking of Welded Tubular Posts in a Carrier Vehicle Because of the Presence of Inclusions That Acted as Stress Raisers, ASM Failure Analysis Case Histories: Material Handling Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.matlhand.c0089766
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