E	Elastic modulus
υ	Poisson’s ratio
KIc	Mode I critical-stress-intensity factor
KIIIc	Mode III critical-stress-intensity factor
ρ	Notch tip radius
β	Loading angle
σu	Ultimate tensile strength
rc,U, dc,U	Critical distances from the origin of the coordinate system
σc	Critical stress of material
KIU,ρ	Mode I stress intensity factor for U-notch
KIIIU,ρ	Mode III stress intensity factor for U-notch
A, A*,B, B*, C*, L, M, P, R, S, V, Z	Constants
ϕf	Out-of-plane fracture angle
r 0	Distance between the notch tip and the origin of the coordinate system
χb1, χc1, χd1	Notch parameters
λ1, λ3, ω1, ω3, μ3	Notch parameters
MUe	Mode mixity ratio
KeffU,ρ	Effective stress intensity factor for U-notch