Calculation of tooth root stresses for spur gears

Tooth root stresses for external spur gears are calculated using plane-strain or plane-stress 2D FEA with a quad-dominant mesh and quadratic elements. As results the first principal stress and the equivalent stress is shown. For comparison with ISO 6336 calculations the first principal stress should be used.
These online calculations are provided free of charge by MESYS AG. The software is tested and no errors are known, but there is no warranty for the correctness of the results and for the availability of the calculations. The usage is at own risk.


Normal module	m_n		mm
Pressure angle	α_n		°
Helix angle	β	0	°
Number of teeth	z
Face width	b		mm
Profile shift coefficient	x
Normal tooth thickness allowance	E_sn		mm
Addendum gear basic rack	h_aP
Addendum tool basic rack	h_aP0
Tip radius factor of tool	ρ_aP0
Torque	T		Nm
Contact diameter	d_C		mm
Method

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