not tested

implement again in new structure if needed

src/constitutive.f90

@@ -200,15 +200,6 @@ module constitutive
         el                                                                                          !< element
     end function plastic_dislotwin_homogenizedC
 
-    pure module function kinematics_thermal_expansion_initialStrain(homog,phase,offset) result(initialStrain)
-     integer, intent(in) :: &
-       phase, &
-       homog, &
-       offset
-     real(pReal), dimension(3,3) :: &
-       initialStrain
-    end function kinematics_thermal_expansion_initialStrain
-
     module subroutine plastic_nonlocal_updateCompatibility(orientation,instance,i,e)
       integer, intent(in) :: &
         instance, &
@@ -378,7 +369,6 @@ module constitutive
     constitutive_LpAndItsTangents, &
     constitutive_dependentState, &
     constitutive_LiAndItsTangents, &
-    constitutive_initialFi, &
     constitutive_SandItsTangents, &
     constitutive_collectDotState, &
     constitutive_deltaState, &
@@ -607,39 +597,6 @@ subroutine constitutive_LiAndItsTangents(Li, dLi_dS, dLi_dFi, &
 end subroutine constitutive_LiAndItsTangents
 
 
-!--------------------------------------------------------------------------------------------------
-!> @brief  collects initial intermediate deformation gradient
-!--------------------------------------------------------------------------------------------------
-pure function constitutive_initialFi(ipc, ip, el)
-
-  integer, intent(in) :: &
-    ipc, &                                                                                          !< component-ID of integration point
-    ip, &                                                                                           !< integration point
-    el                                                                                              !< element
-  real(pReal), dimension(3,3) :: &
-    constitutive_initialFi                                                                          !< composite initial intermediate deformation gradient
-  integer :: &
-    k                                                                                               !< counter in kinematics loop
-  integer :: &
-    phase, &
-    homog, offset
-
-  constitutive_initialFi = math_I3
-  phase = material_phaseAt(ipc,el)
-
-  KinematicsLoop: do k = 1, phase_Nkinematics(phase)                                                !< Warning: small initial strain assumption
-    kinematicsType: select case (phase_kinematics(k,phase))
-      case (KINEMATICS_thermal_expansion_ID) kinematicsType
-        homog  = material_homogenizationAt(el)
-        offset = material_homogenizationMemberAt(ip,el)
-        constitutive_initialFi = constitutive_initialFi &
-                               + kinematics_thermal_expansion_initialStrain(homog,phase,offset)
-    end select kinematicsType
-  enddo KinematicsLoop
-
-end function constitutive_initialFi
-
-
 !--------------------------------------------------------------------------------------------------
 !> @brief contains the constitutive equation for calculating the rate of change of microstructure
 !--------------------------------------------------------------------------------------------------

src/crystallite.f90

@@ -263,7 +263,7 @@ subroutine crystallite_init
       crystallite_Fp0(1:3,1:3,c,i,e) = material_orientation0(c,i,e)%asMatrix()                      ! Fp reflects initial orientation (see 10.1016/j.actamat.2006.01.005)
       crystallite_Fp0(1:3,1:3,c,i,e) = crystallite_Fp0(1:3,1:3,c,i,e) &
                                      / math_det33(crystallite_Fp0(1:3,1:3,c,i,e))**(1.0_pReal/3.0_pReal)
-      crystallite_Fi0(1:3,1:3,c,i,e) = constitutive_initialFi(c,i,e)
+      crystallite_Fi0(1:3,1:3,c,i,e) = math_I3
       crystallite_F0(1:3,1:3,c,i,e)  = math_I3
       crystallite_Fe(1:3,1:3,c,i,e)  = math_inv33(matmul(crystallite_Fi0(1:3,1:3,c,i,e), &
                                                          crystallite_Fp0(1:3,1:3,c,i,e)))           ! assuming that euler angles are given in internal strain free configuration

src/kinematics_thermal_expansion.f90

@@ -81,29 +81,6 @@ module function kinematics_thermal_expansion_init(kinematics_length) result(myKi
 end function kinematics_thermal_expansion_init
 
 
-!--------------------------------------------------------------------------------------------------
-!> @brief  report initial thermal strain based on current temperature deviation from reference
-!--------------------------------------------------------------------------------------------------
-pure module function kinematics_thermal_expansion_initialStrain(homog,phase,offset) result(initialStrain)
-
- integer, intent(in) :: &
-   phase, &
-   homog, &
-   offset
-
- real(pReal), dimension(3,3) :: &
-   initialStrain                                                                                    !< initial thermal strain (should be small strain, though)
-
- associate(prm => param(kinematics_thermal_expansion_instance(phase)))
- initialStrain = &
-   (temperature(homog)%p(offset) - prm%T_ref)**1 / 1. * prm%A(1:3,1:3,1) + &                        ! constant  coefficient
-   (temperature(homog)%p(offset) - prm%T_ref)**2 / 2. * prm%A(1:3,1:3,2) + &                        ! linear    coefficient
-   (temperature(homog)%p(offset) - prm%T_ref)**3 / 3. * prm%A(1:3,1:3,3)                            ! quadratic coefficient
- end associate
-
-end function kinematics_thermal_expansion_initialStrain
-
-
 !--------------------------------------------------------------------------------------------------
 !> @brief constitutive equation for calculating the velocity gradient
 !--------------------------------------------------------------------------------------------------