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Bolt Torque Calculations:
torquecalcs.mComprehensive Torque Spec Calculator.xlsx
How to use:
- Read Info Tab
- Input the following parameters into the Matlab script
- Tensile stress for bolt
- Bolt nominal diameter
- Torque reduction factor (based on lubricant)
Running the script will output torque spec in lbf-in
- Design Parameters
- Input hole dimensions from ASME B1.1-2019
- Use Torque ValueImportant Notes
- Assuming lubricated bolts: Use torque reduction factor to account for lubricated bolts Using a dry torque value on a lubricated bolt can exceed tensile strength
Changelog
4/16/23 Updated boltcalcs.m to consider multiple rows of bolts - LW
5/05/23 Added torquecalcs.m to help determine torque spec - LW LW
5/10/23 Replaced torquecalcs.m with improved torque calcs excel file - LW