Solid shaft compression - taper locks

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SUMMARY

The discussion focuses on calculating the stress on a solid shaft subjected to compressive forces from taper locks or press fits. The user seeks to determine the maximum allowable hoop stress for a solid steel shaft, particularly when subjected to a compressive force of 220 MPa from a locking ring. Despite using thin and thick wall section formulas, the user finds discrepancies in the results, especially when considering a shaft with a 65 mm outer diameter and a 1 mm inner diameter. The consensus is that steel can withstand more than 250 MPa in such configurations.

PREREQUISITES
  • Understanding of solid mechanics principles
  • Familiarity with hoop stress calculations
  • Knowledge of material properties, specifically steel
  • Experience with taper locks and press fit applications
NEXT STEPS
  • Research "Hoop stress calculations for solid shafts"
  • Study "Material properties of steel under compressive loads"
  • Explore "Design considerations for taper locks and press fits"
  • Investigate "Finite Element Analysis (FEA) for stress testing in solid shafts"
USEFUL FOR

Mechanical engineers, materials scientists, and design engineers involved in the design and analysis of shaft systems, particularly those utilizing taper locks and press fits.

dan_68c
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Hi all,

I am trying to work out the stress on a shaft when a compressive force is placed on it such as a taper lock or press fit. I have looked at all the thin and thick wall section formulas and they seem ok. I am not sure what happens when the internal radius becomes 0 and its a solid shaft.
What is the maximum stress (hoop) allowable. For example surely steel can take more than say 250 mpa if it is a solid shaft being clamp.
What compression should a steel shaft be able to withstand,
Thanks all, too many hours scratching my head on this one.
 
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Just to make things clear i am looking at a locking ring that applies 220mpa to the outside of the shaft, and using these equations even a shaft with a with 65 mm od and 1 mm ID it isn't strong enough but i know it would work.
Thanks all
 

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