Table 10 Modified KME constitutive law parameters for 5083-H116

M

Taylor factor

3.07

(Ryen et al. 2006)

α

Constant linking dislocation density to flow stress

0.3

(Verdier et al. 1998a)

b

Magnitude of Burger’s vector

0.286 nm

G

Shear modulus

26400 MPa

L₀

Annihilation distance between two dislocations of opposite signh

16.6 nm

Mean value from 20°C/min tests (Summers et al. 2014)

K_sg

Efficiency of dislocation walls for dislocation annihilation

1030 nm

(Summers et al. 2014)

θ₀

Stage II hardening rate

5000 MPa

θ of 20°C/min tests in RX state