Inheritance diagram for aspect::MaterialModel::Rheology::PeierlsCreep< dim >:

Public Member Functions
	PeierlsCreep ()

const PeierlsCreepParameters	compute_creep_parameters (const unsigned int composition, const std::vector< double > &phase_function_values=std::vector< double >(), const std::vector< unsigned int > &n_phases_per_composition=std::vector< unsigned int >()) const

void	parse_parameters (ParameterHandler &prm, const std::unique_ptr< std::vector< unsigned int >> &expected_n_phases_per_composition=nullptr)

double	compute_approximate_viscosity (const double strain_rate, const double pressure, const double temperature, const unsigned int composition, const std::vector< double > &phase_function_values=std::vector< double >(), const std::vector< unsigned int > &n_phase_transitions_per_composition=std::vector< unsigned int >()) const

double	compute_exact_viscosity (const double strain_rate, const double pressure, const double temperature, const unsigned int composition, const std::vector< double > &phase_function_values=std::vector< double >(), const std::vector< unsigned int > &n_phase_transitions_per_composition=std::vector< unsigned int >()) const

double	compute_viscosity (const double strain_rate, const double pressure, const double temperature, const unsigned int composition, const std::vector< double > &phase_function_values=std::vector< double >(), const std::vector< unsigned int > &n_phase_transitions_per_composition=std::vector< unsigned int >()) const

std::pair< double, double >	compute_approximate_strain_rate_and_derivative (const double stress, const double pressure, const double temperature, const PeierlsCreepParameters creep_parameters) const

std::pair< double, double >	compute_exact_strain_rate_and_derivative (const double stress, const double pressure, const double temperature, const PeierlsCreepParameters creep_parameters) const

std::pair< double, double >	compute_strain_rate_and_derivative (const double stress, const double pressure, const double temperature, const PeierlsCreepParameters creep_parameters) const

Public Member Functions inherited from aspect::SimulatorAccess< dim >
	SimulatorAccess ()

	SimulatorAccess (const Simulator< dim > &simulator_object)

virtual	~SimulatorAccess ()=default

virtual void	initialize_simulator (const Simulator< dim > &simulator_object)

const Introspection< dim > &	introspection () const

const Simulator< dim > &	get_simulator () const

const Parameters< dim > &	get_parameters () const

SimulatorSignals< dim > &	get_signals () const

MPI_Comm	get_mpi_communicator () const

TimerOutput &	get_computing_timer () const

const ConditionalOStream &	get_pcout () const

double	get_time () const

double	get_timestep () const

double	get_old_timestep () const

unsigned int	get_timestep_number () const

unsigned int	get_nonlinear_iteration () const

const parallel::distributed::Triangulation< dim > &	get_triangulation () const

double	get_volume () const

const Mapping< dim > &	get_mapping () const

std::string	get_output_directory () const

bool	include_adiabatic_heating () const

bool	include_latent_heat () const

bool	include_melt_transport () const

int	get_stokes_velocity_degree () const

double	get_adiabatic_surface_temperature () const

double	get_surface_pressure () const

bool	convert_output_to_years () const

unsigned int	get_pre_refinement_step () const

unsigned int	n_compositional_fields () const

void	get_refinement_criteria (Vector< float > &estimated_error_per_cell) const

void	get_artificial_viscosity (Vector< float > &viscosity_per_cell, const bool skip_interior_cells=false) const

void	get_artificial_viscosity_composition (Vector< float > &viscosity_per_cell, const unsigned int compositional_variable) const

const LinearAlgebra::BlockVector &	get_current_linearization_point () const

const LinearAlgebra::BlockVector &	get_solution () const

const LinearAlgebra::BlockVector &	get_old_solution () const

const LinearAlgebra::BlockVector &	get_old_old_solution () const

const LinearAlgebra::BlockVector &	get_reaction_vector () const

const LinearAlgebra::BlockVector &	get_mesh_velocity () const

const DoFHandler< dim > &	get_dof_handler () const

const FiniteElement< dim > &	get_fe () const

const LinearAlgebra::BlockSparseMatrix &	get_system_matrix () const

const LinearAlgebra::BlockSparseMatrix &	get_system_preconditioner_matrix () const

const MaterialModel::Interface< dim > &	get_material_model () const

const GravityModel::Interface< dim > &	get_gravity_model () const

const InitialTopographyModel::Interface< dim > &	get_initial_topography_model () const

const GeometryModel::Interface< dim > &	get_geometry_model () const

const AdiabaticConditions::Interface< dim > &	get_adiabatic_conditions () const

bool	has_boundary_temperature () const

const BoundaryTemperature::Manager< dim > &	get_boundary_temperature_manager () const

const BoundaryHeatFlux::Interface< dim > &	get_boundary_heat_flux () const

bool	has_boundary_composition () const

const BoundaryComposition::Manager< dim > &	get_boundary_composition_manager () const

const std::map< types::boundary_id, std::unique_ptr< BoundaryTraction::Interface< dim > > > &	get_boundary_traction () const

std::shared_ptr< const InitialTemperature::Manager< dim > >	get_initial_temperature_manager_pointer () const

const InitialTemperature::Manager< dim > &	get_initial_temperature_manager () const

std::shared_ptr< const InitialComposition::Manager< dim > >	get_initial_composition_manager_pointer () const

const InitialComposition::Manager< dim > &	get_initial_composition_manager () const

const std::set< types::boundary_id > &	get_fixed_temperature_boundary_indicators () const

const std::set< types::boundary_id > &	get_fixed_heat_flux_boundary_indicators () const

const std::set< types::boundary_id > &	get_fixed_composition_boundary_indicators () const

const std::set< types::boundary_id > &	get_mesh_deformation_boundary_indicators () const

const BoundaryVelocity::Manager< dim > &	get_boundary_velocity_manager () const

const HeatingModel::Manager< dim > &	get_heating_model_manager () const

const MeshRefinement::Manager< dim > &	get_mesh_refinement_manager () const

const MeltHandler< dim > &	get_melt_handler () const

const VolumeOfFluidHandler< dim > &	get_volume_of_fluid_handler () const

const NewtonHandler< dim > &	get_newton_handler () const

const MeshDeformation::MeshDeformationHandler< dim > &	get_mesh_deformation_handler () const

const LateralAveraging< dim > &	get_lateral_averaging () const

const AffineConstraints< double > &	get_current_constraints () const

bool	simulator_is_past_initialization () const

double	get_pressure_scaling () const

bool	pressure_rhs_needs_compatibility_modification () const

bool	model_has_prescribed_stokes_solution () const

TableHandler &	get_statistics_object () const

const Postprocess::Manager< dim > &	get_postprocess_manager () const

const Particle::World< dim > &	get_particle_world () const

Particle::World< dim > &	get_particle_world ()

bool	is_stokes_matrix_free ()

const StokesMatrixFreeHandler< dim > &	get_stokes_matrix_free () const

RotationProperties< dim >	compute_net_angular_momentum (const bool use_constant_density, const LinearAlgebra::BlockVector &solution, const bool limit_to_top_faces=false) const

Static Public Member Functions
static void	declare_parameters (ParameterHandler &prm)

Static Public Member Functions inherited from aspect::SimulatorAccess< dim >
static void	get_composition_values_at_q_point (const std::vector< std::vector< double >> &composition_values, const unsigned int q, std::vector< double > &composition_values_at_q_point)

Private Types
enum	PeierlsCreepScheme { viscosity_approximation, exact }

Private Attributes
enum aspect::MaterialModel::Rheology::PeierlsCreep::PeierlsCreepScheme	peierls_creep_flow_law

std::vector< double >	prefactors

std::vector< double >	stress_exponents

std::vector< double >	activation_energies

std::vector< double >	activation_volumes

std::vector< double >	peierls_stresses

std::vector< double >	fitting_parameters

std::vector< double >	glide_parameters_p

std::vector< double >	glide_parameters_q

std::vector< double >	stress_cutoffs

double	strain_rate_residual_threshold

unsigned int	stress_max_iteration_number

Detailed Description

template<int dim>
class aspect::MaterialModel::Rheology::PeierlsCreep< dim >

Peierls creep is a low temperature, high stress viscous deformation mechanism. Crystal deformation occurs through dislocation glide, which requires high stresses. It is considered an important deformation mechanism in the lithosphere and subducting slabs (Kumamoto et al., 2017, Science Advances). The approximate form of the Peierls flow law used here is based on a derivation from Kameyama et al., 1999, Earth and Planetary Science Letters.

Definition at line 65 of file peierls_creep.h.

Member Enumeration Documentation

§ PeierlsCreepScheme

template<int dim>

enum aspect::MaterialModel::Rheology::PeierlsCreep::PeierlsCreepScheme

private

Enumeration for selecting which type of Peierls creep flow law to use. The options are currently "exact" (which requires a Newton-Raphson iteration in compute_viscosity) and "viscosity_approximation", which uses a simplified expression where the strain rate has a power law dependence on the stress (so that the equation can be directly inverted for viscosity). This approximation requires specifying one fitting parameter (gamma) to obtain the best fit in the expected stress range for a given problem (gamma = stress / peierls_stress). The derivation for this approximation (derived by Magali Billen) can be found at: https://ucdavis.app.box.com/s/cl5mwhkjeabol4otrdukfcdwfvg9me4w/file/705438695737.

Enumerator
viscosity_approximation
exact

Definition at line 192 of file peierls_creep.h.

Constructor & Destructor Documentation

§ PeierlsCreep()

template<int dim>

aspect::MaterialModel::Rheology::PeierlsCreep< dim >::PeierlsCreep ( )

Constructor.

Member Function Documentation

§ compute_creep_parameters()

template<int dim>

const PeierlsCreepParameters aspect::MaterialModel::Rheology::PeierlsCreep< dim >::compute_creep_parameters	(	const unsigned int	composition,
		const std::vector< double > &	phase_function_values = `std::vector< double >()`,
		const std::vector< unsigned int > &	n_phases_per_composition = `std::vector< unsigned int >()`
	)		const

Compute the creep parameters for the Peierls creep law.

§ declare_parameters()

template<int dim>

static void aspect::MaterialModel::Rheology::PeierlsCreep< dim >::declare_parameters ( ParameterHandler & prm )

static

Declare the parameters this function takes through input files.

§ parse_parameters()

template<int dim>

void aspect::MaterialModel::Rheology::PeierlsCreep< dim >::parse_parameters	(	ParameterHandler &	prm,
		const std::unique_ptr< std::vector< unsigned int >> &	expected_n_phases_per_composition = `nullptr`
	)

Read the parameters from the parameter file. If expected_n_phases_per_composition points to a vector of unsigned integers this is considered the number of phases for each compositional field and will be checked against the parsed parameters.

§ compute_approximate_viscosity()

template<int dim>

double aspect::MaterialModel::Rheology::PeierlsCreep< dim >::compute_approximate_viscosity	(	const double	strain_rate,
		const double	pressure,
		const double	temperature,
		const unsigned int	composition,
		const std::vector< double > &	phase_function_values = `std::vector< double >()`,
		const std::vector< unsigned int > &	n_phase_transitions_per_composition = `std::vector< unsigned int >()`
	)		const

Compute the viscosity based on the approximate Peierls creep flow law. If n_phase_transitions_per_composition points to a vector of unsigned integers this is considered the number of phase transitions for each compositional field and viscosity will be first computed on each phase and then averaged for each compositional field.

§ compute_exact_viscosity()

template<int dim>

double aspect::MaterialModel::Rheology::PeierlsCreep< dim >::compute_exact_viscosity	(	const double	strain_rate,
		const double	pressure,
		const double	temperature,
		const unsigned int	composition,
		const std::vector< double > &	phase_function_values = `std::vector< double >()`,
		const std::vector< unsigned int > &	n_phase_transitions_per_composition = `std::vector< unsigned int >()`
	)		const

Compute the viscosity based on the exact Peierls creep flow law. If n_phase_transitions_per_composition points to a vector of unsigned integers this is considered the number of phase transitions for each compositional field and viscosity will be first computed on each phase and then averaged for each compositional field.

§ compute_viscosity()

template<int dim>

double aspect::MaterialModel::Rheology::PeierlsCreep< dim >::compute_viscosity	(	const double	strain_rate,
		const double	pressure,
		const double	temperature,
		const unsigned int	composition,
		const std::vector< double > &	phase_function_values = `std::vector< double >()`,
		const std::vector< unsigned int > &	n_phase_transitions_per_composition = `std::vector< unsigned int >()`
	)		const

Compute the viscosity based on the selected Peierls creep flow law. This function uses either the compute_approximate_viscosity or the compute_exact_viscosity function. If n_phase_transitions_per_composition points to a vector of unsigned integers this is considered the number of phase transitions for each compositional field and viscosity will be first computed on each phase and then averaged for each compositional field.

§ compute_approximate_strain_rate_and_derivative()

template<int dim>

std::pair<double, double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::compute_approximate_strain_rate_and_derivative	(	const double	stress,
		const double	pressure,
		const double	temperature,
		const PeierlsCreepParameters	creep_parameters
	)		const

Compute the strain rate and first stress derivative as a function of stress based on the approximate Peierls creep law.

§ compute_exact_strain_rate_and_derivative()

template<int dim>

std::pair<double, double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::compute_exact_strain_rate_and_derivative	(	const double	stress,
		const double	pressure,
		const double	temperature,
		const PeierlsCreepParameters	creep_parameters
	)		const

Compute the strain rate and first stress derivative as a function of stress based on the exact Peierls creep law.

§ compute_strain_rate_and_derivative()

template<int dim>

std::pair<double, double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::compute_strain_rate_and_derivative	(	const double	stress,
		const double	pressure,
		const double	temperature,
		const PeierlsCreepParameters	creep_parameters
	)		const

Compute the strain rate and first stress derivative as a function of stress based on the selected Peierls creep law. This function uses either the compute_approximate_strain_rate_and_derivative or the compute_exact_strain_rate_and_derivative function.

Member Data Documentation

§ peierls_creep_flow_law

template<int dim>

enum aspect::MaterialModel::Rheology::PeierlsCreep::PeierlsCreepScheme aspect::MaterialModel::Rheology::PeierlsCreep< dim >::peierls_creep_flow_law

private

§ prefactors

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::prefactors

private

List of Peierls creep prefactors (A).

Definition at line 201 of file peierls_creep.h.

§ stress_exponents

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::stress_exponents

private

List of Peierls creep stress exponents (n).

Definition at line 206 of file peierls_creep.h.

§ activation_energies

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::activation_energies

private

List of Peierls creep activation energies (E).

Definition at line 211 of file peierls_creep.h.

§ activation_volumes

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::activation_volumes

private

List of Peierls creep activation volumes (V).

Definition at line 216 of file peierls_creep.h.

§ peierls_stresses

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::peierls_stresses

private

List of Peierls stresses (sigma_p).

Definition at line 221 of file peierls_creep.h.

§ fitting_parameters

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::fitting_parameters

private

List of Peierls fitting parameters (gamma).

Definition at line 226 of file peierls_creep.h.

§ glide_parameters_p

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::glide_parameters_p

private

List of the first Peierls parameter related to dislocation glide (p).

Definition at line 232 of file peierls_creep.h.

§ glide_parameters_q

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::glide_parameters_q

private

List of the second Peierls parameter related to dislocation glide (q).

Definition at line 238 of file peierls_creep.h.

§ stress_cutoffs

template<int dim>

std::vector<double> aspect::MaterialModel::Rheology::PeierlsCreep< dim >::stress_cutoffs

private

Definition at line 240 of file peierls_creep.h.

§ strain_rate_residual_threshold

template<int dim>

double aspect::MaterialModel::Rheology::PeierlsCreep< dim >::strain_rate_residual_threshold

private

Parameters governing the iteration for the exact Peierls viscosity.

Definition at line 246 of file peierls_creep.h.

§ stress_max_iteration_number

template<int dim>

unsigned int aspect::MaterialModel::Rheology::PeierlsCreep< dim >::stress_max_iteration_number

private

Definition at line 247 of file peierls_creep.h.

The documentation for this class was generated from the following file:

/home/bob/source/include/aspect/material_model/rheology/peierls_creep.h

Public Member Functions

Static Public Member Functions

Private Types

Private Attributes

Detailed Description

template<int dim> class aspect::MaterialModel::Rheology::PeierlsCreep< dim >

Member Enumeration Documentation

§ PeierlsCreepScheme

Constructor & Destructor Documentation

§ PeierlsCreep()

Member Function Documentation

§ compute_creep_parameters()

§ declare_parameters()

§ parse_parameters()

§ compute_approximate_viscosity()

§ compute_exact_viscosity()

§ compute_viscosity()

§ compute_approximate_strain_rate_and_derivative()

§ compute_exact_strain_rate_and_derivative()

§ compute_strain_rate_and_derivative()

Member Data Documentation

§ peierls_creep_flow_law

§ prefactors

§ stress_exponents

§ activation_energies

§ activation_volumes

§ peierls_stresses

§ fitting_parameters

§ glide_parameters_p

§ glide_parameters_q

§ stress_cutoffs

§ strain_rate_residual_threshold

§ stress_max_iteration_number

template<int dim>
class aspect::MaterialModel::Rheology::PeierlsCreep< dim >