Breakage of Main Undercarriage Axle of Landing Gear System of an Aircraft Under Simulated Testing
One main undercarriage axle made of high strength alloy steel was subjected to simulated fatigue test for 6000 h of service. After only 300 h it broke in two along the sharp radius. The fracture revealed a coarse, irregular, and brittle surface before final fracture by thick angular shear lip zone. The presence of micropores in the cleavage facets as well as at the grain boundaries and hairline type crack indications under SEM examination were all suggestive of hydrogen embrittlement. On the basis of investigation results and observations, it was concluded that the transverse breakage of the axle had...
A. K. Das, B. M. Thippeswamy, J. Prasad, Breakage of Main Undercarriage Axle of Landing Gear System of an Aircraft Under Simulated Testing, ASM Failure Analysis Case Histories: Air and Spacecraft, ASM International, 2019, https://doi.org/10.31399/asm.fach.aero.c9001555
Download citation file:
Understanding the Basics Collection
8-Volume Digital Library Exclusive
The Understanding the Basics Collection provides comprehensive coverage of critical topics in metallurgy. These introductory guides present critical information on key topics related to materials processing, performance, and evaluation.