# Leaf-spring stiffness
# Scope: Rectangular cantilever leaf with transverse end load.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

width = 20 mm
thickness = 1 mm
length = 100 mm
modulus = 200 GPa
force = 5 N

rate := modulus*width*thickness^3/(4*length^3) [N/mm]
deflection := force/rate [mm]

check deflection budget: deflection <= 10 mm

scenario alternative: width = 16 mm