Re: Shaft Shearing
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Re: Shaft Shearing
Dear vlad,
As I understand, the two shear pins, axial to the axis of the shaft at a distance if 1”, sheared off.
(Please, change your units to SI units (kg - m – sec) as soon as you can)
Seems to me a very simple and basic calculation.
Divide the torque by the pin distance, giving the shear force at each pin cross section.
Divide the shear force by the pin cross section area, giving the shear stress.
Compare this stress with the tensile SHEAR stress and determine which one is the greatest.
(The tensile shear stress approx .0.55x the tensile stress)
If I made no mistakes in the units, I would conclude that the torque is too high for the pins.
Have nice day
Teus ■
Teus
Shaft Shearing
2 drive pins installed on the shaft (on the circle surface) were sheared out.
Could you please find out why this happened?
The shaft diameter is 4.34 inch, the torque on the shaft=120000 in.lb, pin diameter=1 inch, pin length=2, distance between pins=3 inch, pin material=steel AISI 4140 heat treated (YIELD=60495 PSI, TENSILE=94999 PSI), shaft material=AISI C-1018 (YIELD=45 KSI, TENSILE=55 KSI).
Thank you in advance for your time and help.
Vlad ■