Failure Analysis of a Cam–Follower System Affected by a Crack
Cam crack failures are a common occurrence in cam-follower systems often caused by excessive loading or inappropriate operating conditions. An investigation into such a failure was conducted to assess the effect of cam crack damage on the dynamic behavior of cam-follower systems. It was shown both theoretically and experimentally that a cracked cam causes an overall reduction in stiffness. To further probe the effect, investigators derived an analytical formula expressing the time varying stiffness of a cam-follower system. They also succeeded in quantifying the relationship between crack size and stiffness, showing that cracks have an amplitude modulating effect.
M. Tounsi, M.S. Abbes, T. Fakhfakh, M. Haddar, Failure Analysis of a Cam–Follower System Affected by a Crack, Handbook of Case Histories in Failure Analysis, Vol 3, Edited By Larry Berardinis, ASM International, 2019, p 316–325, https://doi.org/10.31399/asm.fach.v03.c9001797
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