diff --git a/ProcessLib/TH2M/ConstitutiveRelations/Base.h b/ProcessLib/TH2M/ConstitutiveRelations/Base.h
index 7ee7b82d247822c6e4579e2bd4988fc797332889..d0f26028eca002d68e9daa55417801abd26c1742 100644
--- a/ProcessLib/TH2M/ConstitutiveRelations/Base.h
+++ b/ProcessLib/TH2M/ConstitutiveRelations/Base.h
@@ -51,6 +51,8 @@ struct TemperatureData
double T_prev;
};
+using ReferenceTemperatureData =
+ BaseLib::StrongType<double, struct ReferenceTemperatureTag>;
using GasPressureData = BaseLib::StrongType<double, struct GasPressureTag>;
using CapillaryPressureData =
BaseLib::StrongType<double, struct CapillaryPressureTag>;
diff --git a/ProcessLib/TH2M/ConstitutiveRelations/SolidThermalExpansion.cpp b/ProcessLib/TH2M/ConstitutiveRelations/SolidThermalExpansion.cpp
index 39ed38dd266a09329305829b90301a04d6759880..196d01b7904748f5c235d4f271d0399569d44004 100644
--- a/ProcessLib/TH2M/ConstitutiveRelations/SolidThermalExpansion.cpp
+++ b/ProcessLib/TH2M/ConstitutiveRelations/SolidThermalExpansion.cpp
@@ -18,6 +18,7 @@ namespace ConstitutiveRelations
template <int DisplacementDim>
void SolidThermalExpansionModel<DisplacementDim>::eval(
SpaceTimeData const& x_t, MediaData const& media_data,
+ TemperatureData const& T_data, ReferenceTemperatureData T0,
SolidThermalExpansionData<DisplacementDim>& out) const
{
namespace MPL = MaterialPropertyLib;
@@ -34,6 +35,9 @@ void SolidThermalExpansionModel<DisplacementDim>::eval(
using Invariants = MathLib::KelvinVector::Invariants<KelvinVectorSize>;
out.beta_T_SR =
Invariants::trace(out.solid_linear_thermal_expansivity_vector);
+
+ double const delta_T = T_data.T - T0();
+ out.thermal_volume_strain = out.beta_T_SR * delta_T;
}
template struct SolidThermalExpansionModel<2>;
diff --git a/ProcessLib/TH2M/ConstitutiveRelations/SolidThermalExpansion.h b/ProcessLib/TH2M/ConstitutiveRelations/SolidThermalExpansion.h
index 6b7d32057121bd6149b6a83e991ec6aa14cb414d..9f225f30f7d2691173ea2bdde69fd1f136db19af 100644
--- a/ProcessLib/TH2M/ConstitutiveRelations/SolidThermalExpansion.h
+++ b/ProcessLib/TH2M/ConstitutiveRelations/SolidThermalExpansion.h
@@ -21,12 +21,14 @@ struct SolidThermalExpansionData
KelvinVector<DisplacementDim> solid_linear_thermal_expansivity_vector;
double beta_T_SR; /// Isotropic solid phase volumetric thermal expansion
/// coefficient.
+ double thermal_volume_strain = nan;
};
template <int DisplacementDim>
struct SolidThermalExpansionModel
{
void eval(SpaceTimeData const& x_t, MediaData const& media_data,
+ TemperatureData const& T_data, ReferenceTemperatureData T0,
SolidThermalExpansionData<DisplacementDim>& out) const;
};
diff --git a/ProcessLib/TH2M/IntegrationPointData.h b/ProcessLib/TH2M/IntegrationPointData.h
index 288d0bbc109bb0eddf2816173c6f94eec410f710..cd79de8021a87d6767dceacde4ed059aff771145 100644
--- a/ProcessLib/TH2M/IntegrationPointData.h
+++ b/ProcessLib/TH2M/IntegrationPointData.h
@@ -64,8 +64,6 @@ struct IntegrationPointData final
GlobalDimVectorType w_GS;
GlobalDimVectorType w_LS;
- double thermal_volume_strain = std::numeric_limits<double>::quiet_NaN();
-
double integration_weight = std::numeric_limits<double>::quiet_NaN();
void pushBackState() { rho_u_eff_prev = rho_u_eff; }
diff --git a/ProcessLib/TH2M/TH2MFEM-impl.h b/ProcessLib/TH2M/TH2MFEM-impl.h
index 860c34b15f0560bbd2dfe841047a14da1a302e0f..3550b5f609fd6de896115040e81ed3d262cfc401 100644
--- a/ProcessLib/TH2M/TH2MFEM-impl.h
+++ b/ProcessLib/TH2M/TH2MFEM-impl.h
@@ -160,6 +160,8 @@ TH2MLocalAssembler<ShapeFunctionDisplacement, ShapeFunctionPressure,
ConstitutiveRelations::TemperatureData const T_data{T, T_prev};
ConstitutiveRelations::GasPressureData const pGR_data{pGR};
ConstitutiveRelations::CapillaryPressureData const pCap_data{pCap};
+ ConstitutiveRelations::ReferenceTemperatureData const T0{
+ this->process_data_.reference_temperature(t, pos)[0]};
double const pLR = pGR - pCap;
GlobalDimVectorType const gradpGR = gradNp * gas_pressure;
GlobalDimVectorType const gradpCap = gradNp * capillary_pressure;
@@ -196,7 +198,7 @@ TH2MLocalAssembler<ShapeFunctionDisplacement, ShapeFunctionPressure,
current_state.swelling_data, ip_cv.swelling_data);
// solid phase linear thermal expansion coefficient
- models.s_therm_exp_model.eval({pos, t, dt}, media_data,
+ models.s_therm_exp_model.eval({pos, t, dt}, media_data, T_data, T0,
ip_cv.s_therm_exp_data);
models.mechanical_strain_model.eval(
@@ -248,11 +250,6 @@ TH2MLocalAssembler<ShapeFunctionDisplacement, ShapeFunctionPressure,
.template value<double>(
vars, pos, t, std::numeric_limits<double>::quiet_NaN());
- double const T0 = this->process_data_.reference_temperature(t, pos)[0];
- double const delta_T(T - T0);
- ip_data.thermal_volume_strain =
- ip_cv.s_therm_exp_data.beta_T_SR * delta_T;
-
// initial porosity
auto const phi_0 = medium.property(MPL::PropertyType::porosity)
.template value<double>(vars, pos, t, dt);
@@ -263,8 +260,9 @@ TH2MLocalAssembler<ShapeFunctionDisplacement, ShapeFunctionPressure,
auto const& m = Invariants::identity2;
double const div_u = m.transpose() * eps;
- const double phi_S = phi_S_0 * (1. + ip_data.thermal_volume_strain -
- ip_cv.biot_data() * div_u);
+ const double phi_S =
+ phi_S_0 * (1. + ip_cv.s_therm_exp_data.thermal_volume_strain -
+ ip_cv.biot_data() * div_u);
#else // NON_CONSTANT_SOLID_PHASE_VOLUME_FRACTION
const double phi_S = phi_S_0;
#endif // NON_CONSTANT_SOLID_PHASE_VOLUME_FRACTION
@@ -275,8 +273,9 @@ TH2MLocalAssembler<ShapeFunctionDisplacement, ShapeFunctionPressure,
// solid phase density
#ifdef NON_CONSTANT_SOLID_PHASE_VOLUME_FRACTION
- auto const rhoSR = rho_ref_SR * (1. - ip_data.thermal_volume_strain +
- (ip_cv.biot_data() - 1.) * div_u);
+ auto const rhoSR =
+ rho_ref_SR * (1. - ip_cv.s_therm_exp_data.thermal_volume_strain +
+ (ip_cv.biot_data() - 1.) * div_u);
#else // NON_CONSTANT_SOLID_PHASE_VOLUME_FRACTION
auto const rhoSR = rho_ref_SR;
#endif // NON_CONSTANT_SOLID_PHASE_VOLUME_FRACTION
@@ -364,7 +363,7 @@ TH2MLocalAssembler<ShapeFunctionDisplacement, ShapeFunctionPressure,
.template dValue<double>(vars, MPL::Variable::temperature,
pos, t, dt)
#ifdef NON_CONSTANT_SOLID_PHASE_VOLUME_FRACTION
- * (1. - ip_data.thermal_volume_strain +
+ * (1. - ip_cv.s_therm_exp_data.thermal_volume_strain +
(ip_cv.biot_data() - 1.) * div_u) -
rho_ref_SR * ip_cv.s_therm_exp_data.beta_T_SR
#endif
@@ -376,11 +375,12 @@ TH2MLocalAssembler<ShapeFunctionDisplacement, ShapeFunctionPressure,
vars, MPL::Variable::temperature, pos, t, dt);
auto const dphi_S_0_dT = -dphi_0_dT;
- const double dphi_S_dT = dphi_S_0_dT
+ const double dphi_S_dT =
+ dphi_S_0_dT
#ifdef NON_CONSTANT_SOLID_PHASE_VOLUME_FRACTION
- * (1. + ip_data.thermal_volume_strain -
- ip_cv.biot_data() * div_u) +
- phi_S_0 * ip_cv.s_therm_exp_data.beta_T_SR
+ * (1. + ip_cv.s_therm_exp_data.thermal_volume_strain -
+ ip_cv.biot_data() * div_u) +
+ phi_S_0 * ip_cv.s_therm_exp_data.beta_T_SR
#endif
;