Spline root failure
Spline root failure
(OP)
I currently have a spline that is cracking in the root of the spline. According to calculations for shear stress and compressive stress the spline should not fail. Is there a way to calculate the stress at the root without using a FEA software?
Thank You
Thank You





RE: Spline root failure
Maybe calculations for load are off.
RE: Spline root failure
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Spline root failure
Matt here are some things to ponder:
CODE
http://www.zakgear.com/External_Spline_IN.html
http://www.kisssoft.ch/english/manual/index.html
http://www.hexagon.de/wn4_e.htm
http://www.mitcalc.com/en/products.htm
http://home.swiftdsl.com.au/~gears/
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RE: Spline root failure
RE: Spline root failure
These can be minimized my 'necking' the transition area down to the base diameter of the spline, and tapering the transition back to the full shaft diameter.
Even is cases where there is not much room, a circular groove with width equal to the spline depth can help.
I had this issue with stub axles, added the groove, and eliminated it.
Carter Shore
RE: Spline root failure