afI	Wave amplitude
bf	Flange width
E	Young’s modulus
fu	Tensile strength
fy	Yield strength
n	Tensile strain hardening exponent
C	Strength coefficient
h	Girder height
hs	Wave height
hw	Web height
L	Girder length
L0	Calculated girder length
q	Wavelength
S	Developed wavelength
tf	Flange thickness
tw	Web thickness
ΔF	Load amplitude
N	Number of cycles to failure
σnom	Nominal stress
σhs	Design stress
M	Bending moment
V	Shear force