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Updated analytic Jacobian evaluation for Guccione Active-contraction #164

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Updated analytic Jacobian evaluation for Guccione Active-contraction #164

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33b3013
Updated analytic Jacobian evaluation for Guccione Active-contraction
MarioHabenbacher Aug 20, 2018
191b1ca
Implement length dependence (constitutive equation)
MarioHabenbacher Aug 20, 2018
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17 changes: 12 additions & 5 deletions src/finite_elasticity_routines.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -803,14 +803,17 @@ SUBROUTINE FINITE_ELASTICITY_GAUSS_ELASTICITY_TENSOR(EQUATIONS_SET,DEPENDENT_INT
!Calculate 2nd Piola tensor (in Voigt form)
STRESS_TENSOR=TEMPTERM1*DQ_DE + P*AZUv
IF(EQUATIONS_SET%specification(3)==EQUATIONS_SET_GUCCIONE_ACTIVECONTRACTION_SUBTYPE) THEN
lambda(1) = 1/(SQRT(2.0_DP*E(1)+1)) !deriv of lambda wrt E
lambda(2) = 1/(SQRT(2.0_DP*E(2)+1)) !deriv of lambda wrt E
lambda(3) = 1/(SQRT(2.0_DP*E(3)+1)) !deriv of lambda wrt E
!add active contraction stress values
CALL Field_VariableGet(EQUATIONS_SET%INDEPENDENT%INDEPENDENT_FIELD,FIELD_U_VARIABLE_TYPE,FIELD_VARIABLE,ERR,ERROR,*999)
DO i=1,FIELD_VARIABLE%NUMBER_OF_COMPONENTS
dof_idx=FIELD_VARIABLE%COMPONENTS(i)%PARAM_TO_DOF_MAP%GAUSS_POINT_PARAM2DOF_MAP% &
DO component_idx=1,FIELD_VARIABLE%NUMBER_OF_COMPONENTS
dof_idx=FIELD_VARIABLE%COMPONENTS(component_idx)%PARAM_TO_DOF_MAP%GAUSS_POINT_PARAM2DOF_MAP% &
& GAUSS_POINTS(GAUSS_POINT_NUMBER,ELEMENT_NUMBER)
CALL FIELD_PARAMETER_SET_GET_LOCAL_DOF(EQUATIONS_SET%INDEPENDENT%INDEPENDENT_FIELD,FIELD_U_VARIABLE_TYPE, &
& FIELD_VALUES_SET_TYPE,dof_idx,VALUE,ERR,ERROR,*999)
STRESS_TENSOR(i)=STRESS_TENSOR(i)+VALUE
& FIELD_VALUES_SET_TYPE,dof_idx,VALUE,err,error,*999)
STRESS_TENSOR(component_idx)=STRESS_TENSOR(component_idx)+VALUE*(1.0_DP+1.45_DP*(lambda(component_idx)-1.0_DP))
ENDDO
ENDIF

Expand Down Expand Up @@ -6532,13 +6535,17 @@ SUBROUTINE FINITE_ELASTICITY_GAUSS_CAUCHY_TENSOR(EQUATIONS_SET,DEPENDENT_INTERPO
!add active contraction stress value to the trace of the stress tensor - basically adding to hydrostatic pressure.
!the active stress is stored inside the independent field that has been set up in the user program.
!for generality we could set up 3 components in independent field for 3 different active stress components
lambda(1) = SQRT(AZL(1,1))
lambda(2) = SQRT(AZL(2,2))
lambda(3) = SQRT(AZL(3,3))
CALL Field_VariableGet(EQUATIONS_SET%INDEPENDENT%INDEPENDENT_FIELD,FIELD_U_VARIABLE_TYPE,FIELD_VARIABLE,err,error,*999)
DO component_idx=1,FIELD_VARIABLE%NUMBER_OF_COMPONENTS
dof_idx=FIELD_VARIABLE%COMPONENTS(component_idx)%PARAM_TO_DOF_MAP%GAUSS_POINT_PARAM2DOF_MAP% &
& GAUSS_POINTS(GAUSS_POINT_NUMBER,ELEMENT_NUMBER)
CALL FIELD_PARAMETER_SET_GET_LOCAL_DOF(EQUATIONS_SET%INDEPENDENT%INDEPENDENT_FIELD,FIELD_U_VARIABLE_TYPE, &
& FIELD_VALUES_SET_TYPE,dof_idx,VALUE,err,error,*999)
PIOLA_TENSOR(component_idx,component_idx)=PIOLA_TENSOR(component_idx,component_idx)+VALUE
PIOLA_TENSOR(component_idx,component_idx)=PIOLA_TENSOR(component_idx,component_idx)+ &
& VALUE*(1.0_DP+1.45_DP*(lambda(component_idx)-1.0_DP))!/DZDNU(component_idx,component_idx)
ENDDO
ENDIF
CASE(EQUATIONS_SET_TRANSVERSE_ISOTROPIC_HUMPHREY_YIN_SUBTYPE)
Expand Down