67 lines
3.2 KiB
Plaintext
67 lines
3.2 KiB
Plaintext
#-------------------#
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<phase>
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#-------------------#
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/echo/
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[Mg]
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plasticity phenopowerlaw
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elasticity hooke
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(output) resistance_slip
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(output) shearrate_slip
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(output) resolvedstress_slip
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(output) totalshear
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(output) resistance_twin
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(output) shearrate_twin
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(output) resolvedstress_twin
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(output) totalvolfrac_twin
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lattice_structure hex
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covera_ratio 1.62350 # from Tromans 2011, Elastic Anisotropy of HCP Metal Crystals and Polycrystals
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c11 59.3e9 # - " -
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c33 61.5e9 # - " -
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c44 16.4e9 # - " -
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c12 25.7e9 # - " -
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c13 21.4e9 # - " -
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# basal prism prism pyr(a) pyr(c+a) pyr(c+a)
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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
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# T1 C1 T2 C2
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Ntwin 6 0 0 6 # - " -
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# basal prism prism pyr(a) pyr(c+a) pyr(c+a)
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tau0_slip 10.0e6 55.0e6 0 60.0e6 0.0 60.0e6 # - " - table 1, pyr(a) set to pyr(c+a)
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tausat_slip 40.0e6 135.0e6 0 150.0e6 0.0 150.0e6 # - " - table 1, pyr(a) set to pyr(c+a)
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# T1 C1 T2 C2
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tau0_twin 40e6 0.0 0.0 60.0e6 # - " - table 1, compressive twin guessed by Steffi, tensile twin modified to match experimental results
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h0_twintwin 50.0e6 # - " - table 1, same range as theta_0
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h0_slipslip 500.0e6 # - " - table 1, same range as theta_0
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h0_twinslip 150.0e6 # guessing
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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
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interaction_twintwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 # - " -
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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 # - " -
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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 # - " -
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####################################################
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# open for discussion
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####################################################
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atol_resistance 1
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atol_shear 0
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atol_twinfrac 0
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n_twin 20
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n_slip 20
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gdot0_twin 0.001
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gdot0_slip 0.001
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twin_b 0
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twin_c 0
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twin_d 20
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twin_e 20
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a_slip 2.25
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s_pr 10.0 # push-up factor for slip saturation due to twinning
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