# Thread engagement and stripping estimate
# Scope: Approximate engaged cylindrical shear area with supplied thread-area factor.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

force = 5000 N
diameter = 6 mm
engagement = 8 mm
areaFactor = 0.5

shearArea := pi*diameter*engagement*areaFactor [mm^2]
stress := force/shearArea [MPa]

check thread shear budget: stress <= 150 MPa

scenario alternative: force = 4000 N