UserObject based Crystal Plasticity System

UserObject based Crystal Plasticity system.

Description

The UserObject based crystal plasticity system is designed to facilitate the implementation of different constitutive laws in a modular way. Both phenomenological constitutive models and dislocation-based constitutive models can be implemented through this system. This system consists of one material class FiniteStrainUObasedCP and four UserObject classes, namely CrystalPlasticitySlipRate, CrystalPlasticitySlipResistance, CrystalPlasticityStateVarRateComponent and CrystalPlasticityStateVariable.

The material class is based on plastic flow on individual slip systems to obtain the inelastic deformation in materials. The present formulation considers large deformation and is based on a stress update algorithm. Some of the important functions associated with this class are outlined below.

Function computeQpStress:

Input:

2 $var element = document.getElementById("moose-equation-f4a67ff2-bad3-4e44-86e5-8a122192d9a4");katex.render("^{nd}", element, {displayMode:false,throwOnError:false});$ Piola-Kirchhoff (PK2) stress in the intermediate configuration at previous increment (variable _pk2_old, symbol $var element = document.getElementById("moose-equation-a38e5521-f0f5-439b-8dd6-cbaf31262e75");katex.render("T_n", element, {displayMode:false,throwOnError:false});$ );
Plastic deformation gradient at previous increment (variable _fp_old, symbol $var element = document.getElementById("moose-equation-c62f536d-252c-4c6b-af95-77df308c48d6");katex.render("F^p_n", element, {displayMode:false,throwOnError:false});$ );
State variables at previous increment;
Current deformation gradient (variable _dfgrd, symbol $var element = document.getElementById("moose-equation-5b04c17a-a081-4b14-9590-c48755dd82f2");katex.render("F", element, {displayMode:false,throwOnError:false});$ ).

Output:

Current PK2 stress (variable _pk2, symbol $var element = document.getElementById("moose-equation-0f6aa2e6-d052-4e4e-bd42-a4392e38e74d");katex.render("T", element, {displayMode:false,throwOnError:false});$ );
Current plastic deformation gradient (variable _fp, symbol $var element = document.getElementById("moose-equation-7af7ad67-32fc-436d-adef-2a952b502065");katex.render("F^p", element, {displayMode:false,throwOnError:false});$ );
Current slip system resistances.
State variables are solved iteratively using a predictor corrector algorithm. $var element = document.getElementById("moose-equation-bb9f3432-2d9e-417a-a676-2023a8dbdde2");katex.render("T", element, {displayMode:false,throwOnError:false});$ is solved using Newton Raphson.

Flowchart:

i: At iteration i=0, $var element = document.getElementById("moose-equation-798c0e9c-3ed2-4212-9bb0-99bd4b643580");katex.render("y^\\alpha_i=y^\\alpha_n", element, {displayMode:false,throwOnError:false});$

ii: Calculate the residual r and Jacobian J= $var element = document.getElementById("moose-equation-93648fea-2d84-467a-b673-3ed548d808eb");katex.render("\\partial r/\\partial T", element, {displayMode:false,throwOnError:false});$ from the function calc_resid_jacob

iii: Update T as: $var element = document.getElementById("moose-equation-fe6e0e2b-104d-4db0-bf5b-a60358761b2b");katex.render("T_{i+1}=T_{i}-J^{-1}r", element, {displayMode:false,throwOnError:false});$

iv: Check $var element = document.getElementById("moose-equation-34e84ab2-928c-4113-adf3-8e870abc093e");katex.render("||r||_2 <", element, {displayMode:false,throwOnError:false});$ _rtol (Optional user defined parameter)

If False then go to Step ii

Else

v: Calculate $var element = document.getElementById("moose-equation-15d996ea-0ea0-4e26-959f-bc7ef2bbe98f");katex.render("y^\\alpha_{i+1}", element, {displayMode:false,throwOnError:false});$ from function updateSlipSystemResistanceAndStateVariable

vi: Check $var element = document.getElementById("moose-equation-f4eb73eb-b7b3-4b76-a4d6-f26123354cfb");katex.render("max|s^\\alpha_{i+1}-s^\\alpha_{i}|/|s^\\alpha_{i}| <", element, {displayMode:false,throwOnError:false});$ _stol (Optional user defined parameter)

If False then go to Step ii

Else

vii: Obtain rotation tensor R

viii: Update rotation as $var element = document.getElementById("moose-equation-29725bb0-39fe-4c3d-b166-9b5c4d739f20");katex.render("\\tilde{R}=RQ", element, {displayMode:false,throwOnError:false});$ where Q is the rotation tensor from Euler angles

Exit Function

Function calc_resid_jacob: User can override this function.

Input:

PK2 stress at previous iteration (variable _pk2, symbol $var element = document.getElementById("moose-equation-8206fa26-6d6d-4f26-8127-1aa476f27aef");katex.render("T_i", element, {displayMode:false,throwOnError:false});$ , i - iteration);
Inverse of plastic deformation gradient at previous increment (variable _fp_old_inv, symbol $var element = document.getElementById("moose-equation-d247d4ba-ca89-4d94-ade1-c96f65780ef3");katex.render("F^{p-1}_n", element, {displayMode:false,throwOnError:false});$ );
Current deformation gradient (variable _dfgrd, symbol $var element = document.getElementById("moose-equation-6c717eca-38b9-40ed-95f3-1a4d1e511f83");katex.render("F", element, {displayMode:false,throwOnError:false});$ ).

Output:

Residual (variable resid, symbol r);
Jacobian (variable jac, symbol J);
Updated inverse of plastic deformation gradient (variable _fp_inv, symbol $var element = document.getElementById("moose-equation-5b8a6c3b-11c7-493a-bd0d-129846b230d9");katex.render("F^{p-1}", element, {displayMode:false,throwOnError:false});$ )

Residual r as implemented:

i. Get slip rates from userobject.

ii. Resultant slip increment (variable eqv_slip_incr) $var element = document.getElementById("moose-equation-4d79d3ef-b5e6-4f03-bd12-ca54b928e578");katex.render("\\Delta \\gamma_{res}=I-\\sum\\limits_m\\sum \\limits_\\alpha \\left( \\Delta \\gamma^\\alpha_m S_m^\\alpha\\right)", element, {displayMode:false,throwOnError:false});$ where $var element = document.getElementById("moose-equation-f9d07d84-9271-452f-8800-bf09299a28a9");katex.render("S_m^\\alpha", element, {displayMode:false,throwOnError:false});$ is the flow direction.

iii. Current plastic component of deformation gradient $var element = document.getElementById("moose-equation-135de165-338e-4e08-a205-3c744decc4d8");katex.render("F^{p-1}=F^{p-1}_n\\Delta \\gamma_{res}", element, {displayMode:false,throwOnError:false});$ .

iv. Elastic component of deformation gradient in iteration i+1, $var element = document.getElementById("moose-equation-8351f48e-87d8-448e-beaf-66f5d3fb6984");katex.render("F^e=FF^{p-1}", element, {displayMode:false,throwOnError:false});$ .

vi: PK2 stress due to $var element = document.getElementById("moose-equation-7b4055bb-9b0b-4b14-8fc5-937432c173b3");katex.render("T_i", element, {displayMode:false,throwOnError:false});$ and associated slip increment in current iteration i+1 (variable pk2_new), $var element = document.getElementById("moose-equation-a0da59d6-1d49-4369-b947-1ffb6fe29e94");katex.render("T^\\prime=C:\\frac{1}{2}\\left(F^{eT}F^e-I\\right)", element, {displayMode:false,throwOnError:false});$ .

vii. Residual $var element = document.getElementById("moose-equation-81006f3e-ed1b-4632-8839-0511c813c060");katex.render("r=T_i-T^\\prime", element, {displayMode:false,throwOnError:false});$ .

Jacobian J formulation:

i. $var element = document.getElementById("moose-equation-d0f722c2-3d06-47c6-9710-6424796dc296");katex.render("r=T_i-T^\\prime", element, {displayMode:false,throwOnError:false});$ and $var element = document.getElementById("moose-equation-0fad590a-63f6-422e-a320-a4af1e8fbf9d");katex.render("J=\\frac{\\partial r}{\\partial T_i}=I-\\frac{\\partial T^\\prime}{\\partial T_i}", element, {displayMode:false,throwOnError:false});$ .

ii. $var element = document.getElementById("moose-equation-fd847275-0857-45ea-beac-231d4ba08168");katex.render("T^\\prime=C:E^e", element, {displayMode:false,throwOnError:false});$ which gives $var element = document.getElementById("moose-equation-279fe344-16ef-4ec3-a100-c19b52862199");katex.render("\\frac{\\partial T^\\prime}{\\partial T_i}=C: \\frac{\\partial E^e}{\\partial T_i}", element, {displayMode:false,throwOnError:false});$ .

iii. $var element = document.getElementById("moose-equation-9b385a1f-f4c1-4194-a343-541de3c566ee");katex.render("E^e=\\frac{1}{2}\\left(F^{eT}F^e -I\\right)", element, {displayMode:false,throwOnError:false});$ which gives in indicial notation $var element = document.getElementById("moose-equation-f2628366-dcb0-46a9-ab72-d0c41ab6ce2c");katex.render("\\frac{\\partial E^e_{ij}}{\\partial F^e_{kl}}=\\frac{1}{2}\\left( \\delta_{il}F^e_{kj}+\\delta_{jl}F^e_{ki}\\right)", element, {displayMode:false,throwOnError:false});$ where $var element = document.getElementById("moose-equation-301f5be5-cff6-470b-92c4-7d9c6bd433a2");katex.render("\\delta_{ij}", element, {displayMode:false,throwOnError:false});$ is the Kroneckar delta.

iv. $var element = document.getElementById("moose-equation-af5679cf-4f4c-49a1-ab65-4c3ddbbd3b5b");katex.render("F^e=FF^{p-1}", element, {displayMode:false,throwOnError:false});$ which gives in indicial notation $var element = document.getElementById("moose-equation-6ac61a52-8247-4309-b2cc-b55cc5be5664");katex.render("\\frac{\\partial F^e_{ij}}{\\partial F^{p-1}_{kl}}=F_{ik}\\delta_{lj}", element, {displayMode:false,throwOnError:false});$ .

v. $var element = document.getElementById("moose-equation-e9550144-8071-4faa-945e-4468d30296be");katex.render("F^{p-1}=F^{p-1}_n\\Delta \\gamma_{res}", element, {displayMode:false,throwOnError:false});$ which gives $var element = document.getElementById("moose-equation-83048e6c-fe47-4bca-8abd-4846c5a354e5");katex.render("\\frac{\\partial F^{p-1}}{\\partial \\Delta \\gamma_{res}}=F^{p-1}_n", element, {displayMode:false,throwOnError:false});$ .

vi. $var element = document.getElementById("moose-equation-712bde91-0a9e-44fd-ba02-e115678bf505");katex.render("\\Delta \\gamma_{res}=I-\\sum\\limits_m\\sum \\limits_\\alpha \\left( \\Delta \\gamma^\\alpha_m S_m^\\alpha\\right)", element, {displayMode:false,throwOnError:false});$ which gives $var element = document.getElementById("moose-equation-502f0821-d0cc-4c00-8ff3-681b96771e0d");katex.render("\\frac{\\partial \\Delta \\gamma_{res}}{\\partial \\Delta \\gamma^\\alpha_m}=-\\sum\\limits_\\alpha S_m^\\alpha", element, {displayMode:false,throwOnError:false});$ .

vii. $var element = document.getElementById("moose-equation-30984fa3-0643-4573-8389-d5ed20ddb03a");katex.render("\\Delta \\gamma^\\alpha_m=f(\\tau_m^\\alpha)", element, {displayMode:false,throwOnError:false});$ which gives $var element = document.getElementById("moose-equation-836816cc-29f1-42b5-b053-db7307475cfb");katex.render("\\frac{\\partial \\Delta \\gamma^\\alpha_m}{\\partial \\tau^\\alpha_m}", element, {displayMode:false,throwOnError:false});$ .

viii. $var element = document.getElementById("moose-equation-82226de5-3abb-415d-91ab-9540951d7def");katex.render("\\tau^\\alpha=T_i:S_m", element, {displayMode:false,throwOnError:false});$ gives $var element = document.getElementById("moose-equation-513a0cc1-595e-41e6-a071-e63e22b108e2");katex.render("\\frac{\\partial \\tau^\\alpha_m}{\\partial T_i}=S_m^\\alpha", element, {displayMode:false,throwOnError:false});$ .

ix. Hence $var element = document.getElementById("moose-equation-a4517f18-42ae-4b6d-8c7d-be9ae5bf529f");katex.render("\\frac{\\partial T^\\prime}{\\partial T_i}=C: \\frac{\\partial E^e}{\\partial F^e} \\frac{\\partial F^e}{\\partial F^{p-1}} \\frac{\\partial F^{p-1}}{\\partial \\Delta \\gamma_{res}}\\sum\\limits_m(\\frac{\\partial \\Delta \\gamma_{res}}{\\partial \\Delta \\gamma^\\alpha_m}\\frac{\\partial \\Delta \\gamma^\\alpha_m}{\\partial \\tau^\\alpha_m})\\frac{\\partial \\tau^\\alpha}{\\partial T_i}", element, {displayMode:false,throwOnError:false});$ .

Jacobian J as implemented:

i. Variable dtaudpk2, $var element = document.getElementById("moose-equation-9560ef5d-60be-419a-89f6-c42616f0c9a5");katex.render("\\frac{\\partial \\tau^\\alpha}{\\partial T_i}", element, {displayMode:false,throwOnError:false});$ .

ii. Variable dfpinvdslip, $var element = document.getElementById("moose-equation-b8332d1d-cad9-439a-b67f-c1b9f3efcd02");katex.render("\\frac{\\partial F^{p-1}}{\\partial \\Delta \\gamma^\\alpha}", element, {displayMode:false,throwOnError:false});$ .

iii. Variable dfedfpinv, $var element = document.getElementById("moose-equation-586210dd-2772-4ce6-b9b1-19a9bd6c9f9e");katex.render("\\frac{\\partial F^e}{\\partial F^{p-1}}", element, {displayMode:false,throwOnError:false});$ .

iv: Variable deedfe, $var element = document.getElementById("moose-equation-d555d769-b8fd-48a2-8467-fd6e5d415ed2");katex.render("\\frac{\\partial E^e}{\\partial F^e}", element, {displayMode:false,throwOnError:false});$ .

v. Variable dfpinvdpk2, $var element = document.getElementById("moose-equation-4c7f7726-1572-4e75-9d40-8ed79329888b");katex.render("\\frac{\\partial F^{p-1}}{\\partial T_i}=\\frac{\\partial F^{p-1}}{\\partial \\Delta \\gamma^\\alpha} \\frac{\\partial \\Delta \\gamma^\\alpha}{\\partial \\tau^\\alpha} \\frac{\\partial \\tau^\\alpha}{\\partial T_i}", element, {displayMode:false,throwOnError:false});$ .

vi. $var element = document.getElementById("moose-equation-2b5366f1-b606-4f2c-8fae-6dab8f4df717");katex.render("\\frac{\\partial \\Delta \\gamma^\\alpha_m}{\\partial \\tau^\\alpha_m}", element, {displayMode:false,throwOnError:false});$ obtained from slip rate userobject.

vii. Variable jac, $var element = document.getElementById("moose-equation-e0a5855b-9933-441e-b4ac-5fc75742434e");katex.render("J=C:\\frac{\\partial E^e}{\\partial F^e} \\frac{\\partial F^e}{\\partial F^{p-1}} \\frac{\\partial F^{p-1}}{\\partial T_i}", element, {displayMode:false,throwOnError:false});$ , followed by $var element = document.getElementById("moose-equation-7ccb6739-8bb5-4c6a-b64c-f6137d02c6af");katex.render("J=\\mathfrak{I}-J", element, {displayMode:false,throwOnError:false});$ where $var element = document.getElementById("moose-equation-6f852b53-5ca3-4c79-bc1c-10f272af03fb");katex.render("\\mathfrak{I}", element, {displayMode:false,throwOnError:false});$ is the fourth order identity tensor.

Update Cauchy stress (variable sig) $var element = document.getElementById("moose-equation-efa805a7-d600-452c-a9ed-9a94bb9d197a");katex.render("\\sigma=F^e T_i F^{eT}/J^e", element, {displayMode:false,throwOnError:false});$ .

Function computeQpElasticityTensor: Defines tangent moduli K and can be used as preconditioner for JFNK. User can override this function.

Input:

Current plastic deformation gradient (variable _fp, symbol $var element = document.getElementById("moose-equation-ff0d52bb-0c65-49b7-8481-b9f73afc045c");katex.render("F^p", element, {displayMode:false,throwOnError:false});$ );
Current deformation gradient (variable _dfgrd, symbol $var element = document.getElementById("moose-equation-a685dc3a-3b87-4bca-9a95-cbe2350a0094");katex.render("F", element, {displayMode:false,throwOnError:false});$ )

Output:

Tangent moduli (variable _Jacobian_mult,symbol K).

Formulation:

i. $var element = document.getElementById("moose-equation-baddf656-841f-4a8c-9e33-8fc7d49c5916");katex.render("K=\\frac{\\partial \\sigma}{\\partial F}", element, {displayMode:false,throwOnError:false});$ .

ii. $var element = document.getElementById("moose-equation-fbbcdb7f-bada-470a-b205-8cfae0ed5d58");katex.render("\\sigma=F^eTF^{eT}/J^e", element, {displayMode:false,throwOnError:false});$ which gives $var element = document.getElementById("moose-equation-a868489d-2936-4428-a1f7-78b944a7e67c");katex.render("\\frac{\\partial \\sigma}{\\partial F}=\\frac{1}{J^e}\\left(\\frac{\\partial F^e}{\\partial F}TF^{eT}+F^e\\frac{\\partial T}{\\partial F}F^{eT}+F^eT\\frac{\\partial F^{eT}}{\\partial F}\\right)", element, {displayMode:false,throwOnError:false});$ .

iii. In indicial notation $var element = document.getElementById("moose-equation-86ce8f40-ba28-4f6b-a315-283d1487712c");katex.render("\\frac{\\partial F^e_{ij}}{\\partial F_{kl}}=\\delta_{ki}F^{p-1}_{lj}", element, {displayMode:false,throwOnError:false});$ .

iv. $var element = document.getElementById("moose-equation-a607664d-64c0-4cf2-ba28-c383b8f61e13");katex.render("T=C:E^e", element, {displayMode:false,throwOnError:false});$ which gives $var element = document.getElementById("moose-equation-16d85306-8fd9-4811-be09-44e37c038c74");katex.render("\\frac{\\partial T}{\\partial F}=\\frac{\\partial T}{\\partial E^e}\\frac{\\partial E^e}{\\partial F^e}\\frac{\\partial F^e}{\\partial F}=C:\\frac{\\partial E^e}{\\partial F^e}\\frac{\\partial F^e}{\\partial F}", element, {displayMode:false,throwOnError:false});$ .

v. In indicial notation $var element = document.getElementById("moose-equation-429e1853-c45a-4528-ac93-943d0b6fc014");katex.render("\\frac{\\partial E^e_{ij}}{\\partial F^e_{kl}}=\\frac{1}{2}\\left(\\delta_{il}F^e_{kj}+\\delta_{jl}F^e_{ki}\\right)", element, {displayMode:false,throwOnError:false});$ .

Implementation:

i. Variable dfedf calculates $var element = document.getElementById("moose-equation-e811963f-c1bc-41f3-87c4-8263f58328e3");katex.render("\\frac{\\partial F^e}{\\partial F}", element, {displayMode:false,throwOnError:false});$ .

ii. Variable deedfe calculates $var element = document.getElementById("moose-equation-a7a40c6e-62ff-4145-8bff-2188fbe76ff9");katex.render("\\frac{\\partial E^e}{\\partial F^e}", element, {displayMode:false,throwOnError:false});$ .

iii. Variable dsigspk2dfe calculates $var element = document.getElementById("moose-equation-d4add459-7815-46d9-8f38-36956a032b8f");katex.render("F^{eT} C:\\frac{\\partial E^e}{\\partial F^e} F^e", element, {displayMode:false,throwOnError:false});$ .

Input Parameters

uo_slip_ratesList of names of user objects that define the slip rates for this material.
C++ Type:std::vector<UserObjectName>
Controllable:No
Description:List of names of user objects that define the slip rates for this material.
uo_slip_resistancesList of names of user objects that define the slip resistances for this material.
C++ Type:std::vector<UserObjectName>
Controllable:No
Description:List of names of user objects that define the slip resistances for this material.
uo_state_var_evol_rate_compsList of names of user objects that define the state variable evolution rate components for this material.
C++ Type:std::vector<UserObjectName>
Controllable:No
Description:List of names of user objects that define the state variable evolution rate components for this material.
uo_state_varsList of names of user objects that define the state variable for this material.
C++ Type:std::vector<UserObjectName>
Controllable:No
Description:List of names of user objects that define the state variable for this material.

Required Parameters

abs_tol1e-06Constitutive stress residue absolute tolerance
Default:1e-06
C++ Type:double
Controllable:No
Description:Constitutive stress residue absolute tolerance
base_nameOptional parameter that allows the user to define multiple mechanics material systems on the same block, i.e. for multiple phases
C++ Type:std::string
Controllable:No
Description:Optional parameter that allows the user to define multiple mechanics material systems on the same block, i.e. for multiple phases
blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
boundaryThe list of boundaries (ids or names) from the mesh where this object applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this object applies
computeTrueWhen false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the MaterialBase via MaterialBasePropertyInterface::getMaterialBase(). Non-computed MaterialBases are not sorted for dependencies.
Default:True
C++ Type:bool
Controllable:No
Description:When false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the MaterialBase via MaterialBasePropertyInterface::getMaterialBase(). Non-computed MaterialBases are not sorted for dependencies.
constant_onNONEWhen ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped
Default:NONE
C++ Type:MooseEnum
Options:NONE, ELEMENT, SUBDOMAIN
Controllable:No
Description:When ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped
declare_suffixAn optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
line_search_maxiter20Line search bisection method maximum number of iteration
Default:20
C++ Type:unsigned int
Controllable:No
Description:Line search bisection method maximum number of iteration
line_search_methodCUT_HALFThe method used in line search
Default:CUT_HALF
C++ Type:MooseEnum
Options:CUT_HALF, BISECTION
Controllable:No
Description:The method used in line search
line_search_tol0.5Line search bisection method tolerance
Default:0.5
C++ Type:double
Controllable:No
Description:Line search bisection method tolerance
maximum_substep_iteration1Maximum number of substep iteration
Default:1
C++ Type:unsigned int
Controllable:No
Description:Maximum number of substep iteration
maxiter100Maximum number of iterations for stress update
Default:100
C++ Type:unsigned int
Controllable:No
Description:Maximum number of iterations for stress update
maxiter_state_variable100Maximum number of iterations for state variable update
Default:100
C++ Type:unsigned int
Controllable:No
Description:Maximum number of iterations for state variable update
min_line_search_step_size0.01Minimum line search step size
Default:0.01
C++ Type:double
Controllable:No
Description:Minimum line search step size
prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
rtol1e-06Constitutive stress residue relative tolerance
Default:1e-06
C++ Type:double
Controllable:No
Description:Constitutive stress residue relative tolerance
stol0.01Constitutive slip system resistance relative residual tolerance
Default:0.01
C++ Type:double
Controllable:No
Description:Constitutive slip system resistance relative residual tolerance
tan_mod_typenoneType of tangent moduli for preconditioner: default elastic
Default:none
C++ Type:MooseEnum
Options:exact, none
Controllable:No
Description:Type of tangent moduli for preconditioner: default elastic
use_line_searchFalseUse line search in constitutive update
Default:False
C++ Type:bool
Controllable:No
Description:Use line search in constitutive update
zero_tol1e-12Tolerance for residual check when variable value is zero
Default:1e-12
C++ Type:double
Controllable:No
Description:Tolerance for residual check when variable value is zero

Optional Parameters

control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
implicitTrueDetermines whether this object is calculated using an implicit or explicit form
Default:True
C++ Type:bool
Controllable:No
Description:Determines whether this object is calculated using an implicit or explicit form
seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Controllable:No
Description:The seed for the master random number generator

Advanced Parameters

output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)
C++ Type:std::vector<std::string>
Controllable:No
Description:List of material properties, from this material, to output (outputs must also be defined to an output type)
outputsnone Vector of output names where you would like to restrict the output of variables(s) associated with this object
Default:none
C++ Type:std::vector<OutputName>
Controllable:No
Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object

Outputs Parameters

References

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