ASM Failure Analysis Case Histories: Design Flaws
Fatigue Failure Due to Improper Design
-
Published:2019
Abstract
There was a fracture of an anchor link that rides on a post with a spherical surface. No bevel or radius was called for, leaving an extremely sharp edge. A fatigue crack grew from the top sharp edge. The casting had good toughness and strength (1448 MPa, or 210 ksi, tensile strength). This fatigue failure was the result of poor design, which incorporated a notch that acted as a stress raiser, leading to fatigue-crack growth. A generous radius was recommended to avoid similar failures.
Sign in
ASM members
Member Sign InFatigue Failure Due to Improper Design, ASM Failure Analysis Case Histories: Design Flaws, ASM International, 2019, https://doi.org/10.31399/asm.fach.design.c0047414
Download citation file:
March 14-16 | Fort Worth, Texas
Keep up to date with the latest aerospace materials and technologies. Register today for Aeromat 2023!