ASM Failure Analysis Case Histories: Automobiles and Trucks
Fracture of Supplementary Axle-Support Channels for a Highway Trailer Caused by Restricting Welds
-
Published:2019
Abstract
A supplementary axle, which was used as an extension to a highway-trailer tractor to increase its load-bearing capacity, failed in service. The rolled steel channel extensions that secured the axle assembly to the tractor main-frame I-beams fractured transversely, with the crack in each instance initiating at a weld that joined the edge of the lower flange to the support bracket casting. The cracks propagated through the flange on each side until the effective cross-sectional area had been reduced sufficiently to bring about sudden and complete fracture of the remaining web and upper flange. Fatigue fracture was caused by a...
Sign in
ASM members
Member Sign InFracture of Supplementary Axle-Support Channels for a Highway Trailer Caused by Restricting Welds, ASM Failure Analysis Case Histories: Automobiles and Trucks, ASM International, 2019, https://doi.org/10.31399/asm.fach.auto.c0047521
Download citation file:
Join Failure Analysis Society
The ASM Failure Analysis Society (FAS) is a community where failure analysis professionals from all over the world can learn and grow in their field