## Isotropic Material model to simulate free surfaces ##
## For more information see paper Maiti+Eisenlohr2018, Scripta Materialia,
## "Fourier-based spectral method solution to finite strain crystal plasticity with free surfaces"

---
homogenization:
  SX:
    mech: {type: none}

material:
  - constituents:
      - fraction: 1.0
        O: [1.0, 0.0, 0.0, 0.0]
        phase: Aluminum
    homogenization: SX
  - constituents:
      - fraction: 1.0
        O: [1.0, 0.0, 0.0, 0.0]
        phase: Air
    homogenization: SX

phase:
  Aluminum:
    elasticity: {C_11: 110.9e9, C_12: 58.34e9, type: hooke}
    generic:
      output: [F, P, Fe, Fp, Lp]
    lattice: iso
    plasticity:
      type: isotropic
      output: [xi]
      xi_0: 31e6
      xi_inf: 63e6
      dot_gamma_0: 0.001
      n: 20
      M: 3
      h_0: 75e6
      a: 2.25
  Air:
    elasticity: {C_11: 10e9, C_12: 0.0, type: hooke}
    generic:
      output: [F, P, Fe, Fp, Lp]
    lattice: iso
    plasticity:
      type: isotropic
      output: [xi]
      xi_0: 0.3e6
      xi_inf: 0.6e6
      dot_gamma_0: 0.001
      n: 5
      M: 3
      h_0: 1e6
      a: 2
      dilatation: true