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Halfshaft failure
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19-10-2021, 07:58 AM
It's a rotating - bending fatigue failure with multiple points of origin. Alternating compressive and tensile stresses in the surface of a driveshaft are normal; the shaft encounters bending loads if only from supporting its own weight. Fatigue is about the cumulative impact of smaller loads. As others have observed the hardness test mark may have been the point of crack initiation, but any tool mark would do.
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| Messages In This Thread |
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Halfshaft failure - by Lowlevelandfast - 18-10-2021, 07:46 PM
RE: Halfshaft failure - by Robert Foreman - 18-10-2021, 08:32 PM
RE: Halfshaft failure - by Ian Williams - 18-10-2021, 08:34 PM
RE: Halfshaft failure - by Dave Mann - 18-10-2021, 08:43 PM
RE: Halfshaft failure - by Tony Betts - 18-10-2021, 08:52 PM
RE: Halfshaft failure - by Bob Culver - 18-10-2021, 09:36 PM
RE: Halfshaft failure - by Denis Sweeney - 18-10-2021, 10:09 PM
RE: Halfshaft failure - by Bob Culver - 18-10-2021, 10:35 PM
RE: Halfshaft failure - by dickie65 - 18-10-2021, 10:35 PM
RE: Halfshaft failure - by Bob Culver - 19-10-2021, 12:46 AM
RE: Halfshaft failure - by Denis Sweeney - 19-10-2021, 07:18 AM
RE: Halfshaft failure - by Chris KC - 19-10-2021, 07:58 AM
RE: Halfshaft failure - by Dave Mann - 19-10-2021, 08:48 AM
RE: Halfshaft failure - by Steve kay - 19-10-2021, 09:06 AM
RE: Halfshaft failure - by Bob Culver - 19-10-2021, 09:19 AM
RE: Halfshaft failure - by Colin Morgan - 19-10-2021, 02:26 PM
RE: Halfshaft failure - by Bob Culver - 19-10-2021, 07:44 PM
RE: Halfshaft failure - by Dave Mann - 20-10-2021, 10:12 AM
RE: Halfshaft failure - by Stuart Giles - 20-10-2021, 04:01 PM
RE: Halfshaft failure - by Bob Culver - 20-10-2021, 07:39 PM
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