DAMASK_EICMD/trunk/mattex.mpie

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<materials>
[TWIP steel FeMnC]
lattice_structure 1
Nslip 12
Ntwin 12
## Elastic constants
# Unit in [Pa]
C11 245.0e9
C12 105.0e9
C44 65.0e9
## Parameters for phenomenological modeling
# Unit in [Pa]
s0_slip 85.0e6
gdot0_slip 0.001
n_slip 100.0
h0 355.0e6
s_sat 265.0e6
w0 1.0
# Self and latent hardening coefficients
hardening_coefficients 1.0 1.4
## Parameters for dislocation-based modeling
# Initial dislocation density [m]²
rho0 2.8e13
# Burgers vector [m]
burgers 2.56e-10
# Activation energy for dislocation glide [J/K]
Qedge 3.0e-19
# Reference for passing stress [Pa]
tau0 0.0
# Passing stress adjustment
c1 0.1
# Jump width adjustment
c2 2.0
# Activation volume adjustment
c3 1.2
# Dislocation storage adjustment
# = c4(Anxin)*c2(Anxin) !!!!!!
c4 14.25
# Grain boundaries storage adjustment
c5 1.0
# Athermal annihilation adjustment
c7 23.5
# Dislocation interaction coefficients
interaction_coefficients 1.0 2.2 3.0 1.6 3.8 4.5
# Twin parameters
# Grain size [m]
grain_size 2.0e-5
# Twin thickness (stacks) [m]
stack_size 5.0e-8
# Activation length for twin nucleation [m]
d_star 5.0e-10
# Twin saturation value
f_sat 0.3
# Twin boundaries storage adjustment
c6 0.425
# Scaling of really activated nucleation sites
c8 2.0e-3
# Selection of active twin systems
c9 10.0
# Twin resistance [Pa]
twin_resistance 1000.0e6
stacking_fault_energy 2.0e-2
<textures>
[cube SX]
symmetry no /monoclinic /orthorhombic
Ngrains 1 /2 /4
(gauss) phi1 0.0 phi 0.0 phi2 0.0 scatter 0.0 fraction 1.0