Engineering DisclaimerEngineering calculations are provided for preliminary design and educational/reference purposes only. Users must verify all results according to applicable engineering standards, supplier data, manufacturing requirements, and professional engineering judgment.
ASME B106.1M
Shafts
Shaft Combined Bending & Torsion
Calculate required shaft diameter based on ASME B106.1M fatigue criteria combining bending and torsional moments.
Workspace Mode:
Unsaved Configuration
Calculation Results
Equivalent Torque (Me)
625N·m
Combined torsional stress torque.
Required Shaft Diameter
625mm
Calculated minimum diameter for safety limit.
Max Shear Stress
625MPa
Computed stress value.
Calculation Summary
Input Parameters
| Torsional Torque | 500N·m |
| Bending Moment | 300N·m |
| Material Yield Strength | 370MPa |
| Factor of Safety | 2 |
Calculated Results
| Equivalent Torque (Me) | 625.00N·m KEY |
| Required Shaft Diameter | 625.00mm |
| Max Shear Stress | 625.00MPa |
Safety Notes
This is a dynamic placeholder interface. Calculations will activate in a future release.
Mathematical Models & Equations
ASME Shear Stress Criteria
τ_max = (16 / (π * d^3)) * √(M^2 + T^2)Diameter Equation
d = [ (16 * N_fs / (π * S_y)) * √(M^2 + T^2) ]^(1/3)Verification Calculation Log
- 1Retrieve input parameters from form controls.
- 2Substitute first active variable: Input = 500.
- 3Sprint 3 Placeholder: Formula computations will activate in future releases.
Engineering Application Notes
Assumes steady torsional torque and fully reversed bending. Calculations omit stress concentrations, shaft keys, or dynamic impacts.
Standard Citations & References
- ASME B106.1M Design of Transmission Shafting
- Shigley's Mechanical Engineering Design, Chapter 7