The new dislocation model is now implemented in constitutive_dislotwin.f90

(seems to run fine, but still under investigation)

code/material.config

@@ -209,6 +209,58 @@ interaction_twintwin    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
 w0_slip                 4.0
 relevantResistance      1
 
+
+[TWIP steel FeMnC]
+
+#(output)			edge_density
+#(output)			dipole_density
+#(output)			shear_rate_slip
+#(output)			mfp_slip
+#(output)			resolved_stress_slip
+#(output)			threshold_stress_slip
+#(output)			twin_fraction
+#(output)			shear_rate_twin
+#(output)			mfp_twin
+#(output)			resolved_stress_twin
+#(output)			threshold_stress_twin
+
+### Material parameters ###
+lattice_structure	fcc
+constitution	dislotwin
+C11			175.0e9		# From Music et al. Applied Physics Letters 91, 191904 (2007)
+C12			115.0e9
+C44			135.0e9
+grainsize		2.0e-5		# Average grain size [m]
+
+### Dislocation glide adjusting parameters ###
+Nslip				12 0 0 0
+slipburgers			2.56e-10 0 0 0	# Burgers vector of slip system [m]
+rhoedge0			1.0e12 0 0 0	# Initial dislocation density [m/m³]
+rhoedgedip0			1.0 0 0 0		# Initial dislocation density [m/m³]
+Qedge				3.7e-19 0 0 0	# Activation energy for dislocation glide [J]
+v0                	1.0e-4 0 0 0      # Initial glide velocity [m/s]
+CLambdaSlip			10.0 0 0 0		# Adj. parameter controlling dislocation mean free path
+D0				4.0e-5      	# Vacancy diffusion prefactor [m²/s]
+Qsd				4.5e-19           # Activation energy for climb [J]
+pexponent               1.0               # p-exponent in glide velocity
+qexponent               1.0               # p-exponent in glide velocity
+Catomicvolume		1.0			# Adj. parameter controlling the atomic volume [in b]
+Cedgedipmindistance	1.0			# Adj. parameter controlling the minimum dipole distance [in b]
+relevantRho			1.0e-200
+interactionSlipSlip	0.122 0.122 0.625 0.07 0.137 0.122	# Interaction coefficients (Kubin et al. 2008)
+
+### dislocation density-based constitutive parameters ###
+Ntwin				12
+twinburgers			1.47e-10		# Burgers vector of twin system [m]
+twinsize			5.0e-8		# Twin stack mean thickness [m]	
+fmax				1.0			# Maximum admissible twin volume fraction
+Ndot0				0.0			# Number of potential source per volume per time [1/m³.s] 
+rexponent			10.0			# r-exponent in glide velocity
+Cmfptwin			1.0			# Adj. parameter controlling twin mean free path
+Cthresholdtwin		1.0			# Adj. parameter controlling slip threshold stress
+interactionSlipTwin	0.0 1.0		# Dislocation interaction coefficients
+interactionTwinTwin	0.0 1.0		# Dislocation interaction coefficients
+
 #####################
 <texture>
 #####################