From: Elastic strain energy density decomposition in failure of ductile materials under combined torsion-tension
Parameter
Constant
Steel En8, Equation (7)
m
n
q (MPa)
336.7
277.9
−0.00789
Al 24S-T, Equation (10)
a (MPa)
b
c (MPa)
h
q
445.33
−0.775
202.54
−0.841
−0.042
