; KREST IP 1 ; polynomial dependence on cumulated creep strain MP 1 T -1 I 10 ; E α ν ρ σY QY V 2e11 V 1e-5 V 0.3 V 0 V 0 V 0 ; effective strain rate V 2.7e-2 -3.94099e-2 2.07639e-2 SV 1 T 9 V 30e6 0 0 ; σxx = 30 MPa AS 1 /M 1 /B 0 N 1 /B 0 C 1 N 2 11 /R 0 800 800 ; stiffness matrix for T = 800 °C AS 2 /S 1 E 4 S2 /R 0 800 800 ; reference T = current T = 800 °C EN EN