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uniaxial fatigue testing - hollow cylinder

uniaxial fatigue testing - hollow cylinder

uniaxial fatigue testing - hollow cylinder

(OP)
Hi, I have been talking to someone about uniaxial (tension-tension) loading fatigue testing. They told me that hollow cylinder specimen is a lot harder to work with than solid cylinder specimen in terms of fatigue. I just want to know the reason for that. Is it because the cross section of the hollow cylinder will warp during testing (making it hard to control the load)?

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