#-------------------# #-------------------# /echo/ [Mg] plasticity phenopowerlaw elasticity hooke (output) resistance_slip (output) resistance_twin lattice_structure hex c/a 1.62350 # from Tromans 2011, Elastic Anisotropy of HCP Metal Crystals and Polycrystals c11 59.3e9 # - " - c33 61.5e9 # - " - c44 16.4e9 # - " - c12 25.7e9 # - " - c13 21.4e9 # - " - # basal prism prism pyr(a) pyr(c+a) pyr(c+a) Nslip 3 3 0 6 0 6 # from Agnew et al 2006, Validating a polycrystal model for the elastoplastic response of mg alloy AZ32 using in situ neutron diffraction # T1 C1 T2 C2 Ntwin 6 0 0 6 # - " - # basal prism prism pyr(a) pyr(c+a) pyr(c+a) tau0_slip 10.0e6 55.0e6 0 60.0e6 0.0 60.0e6 # - " - table 1, pyr(a) set to pyr(c+a) tausat_slip 40.0e6 135.0e6 0 150.0e6 0.0 150.0e6 # - " - table 1, pyr(a) set to pyr(c+a) # T1 C1 T2 C2 tau0_twin 40e6 0.0 0.0 60.0e6 # - " - table 1, compressive twin guessed by Steffi, tensile twin modified to match experimental results h0_twintwin 50.0e6 # - " - table 1, same range as theta_0 h0_slipslip 500.0e6 # - " - table 1, same range as theta_0 h0_twinslip 150.0e6 # guessing interaction_slipslip 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 # just guessing interaction_twintwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 # - " - interaction_sliptwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 # - " - interaction_twinslip 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 # - " - #################################################### # open for discussion #################################################### atol_shear 1e-6 atol_twinfrac 1e-6 n_twin 20 n_slip 20 gdot0_twin 0.001 gdot0_slip 0.001 twin_b 0 twin_c 0 twin_d 20 twin_e 20 a_slip 2.25 s_pr 10.0 # push-up factor for slip saturation due to twinning