To build element equations for 2-D linearized elasticity using 3-node triangles. More...


Public Member Functions | |
Elas2DT3 () | |
Default Constructor. More... | |
Elas2DT3 (Mesh &ms) | |
Constructor using Mesh data. More... | |
Elas2DT3 (const Element *el) | |
Constructor using element data. More... | |
Elas2DT3 (const Side *sd) | |
Constructor using side data. More... | |
Elas2DT3 (const Element *el, const Vect< real_t > &u, real_t time=0.) | |
Constructor using element, previous time solution u and time value. More... | |
Elas2DT3 (const Element *el, const Vect< real_t > &u, real_t time, real_t deltat, int scheme) | |
Constructor for an element (transient case) with specification of time integration scheme. More... | |
Elas2DT3 (const Side *sd, const Vect< real_t > &u, real_t time=0.) | |
Constructor using side, previous time solution u and time value. More... | |
Elas2DT3 (const Side *sd, const Vect< real_t > &u, real_t time, real_t deltat, int scheme) | |
Constructor for a side (transient case) with specification of time integration scheme. More... | |
~Elas2DT3 () | |
Destructor. | |
void | Media (real_t E, real_t nu, real_t rho) |
Set media properties. More... | |
void | PlaneStrain () |
Set plane strain hypothesis. | |
void | PlaneStrain (real_t E, real_t nu) |
Set plane strain hypothesis by giving values of Young's modulus E and Poisson ratio nu | |
void | PlaneStress () |
Set plane stress hypothesis. | |
void | PlaneStress (real_t E, real_t nu) |
Set plane stress hypothesis by giving values of Young's modulus E and Poisson ratio nu | |
void | LMassToLHS (real_t coef=1.) |
Add element lumped mass contribution to matrix after multiplication by coef More... | |
void | LMassToRHS (real_t coef=1.) |
Add element lumped mass contribution to right-hand side after multiplication by coef More... | |
void | LMass (real_t coef=1.) |
Add element lumped mass contribution to matrix and right-hand side after multiplication by coef More... | |
void | MassToLHS (real_t coef=1.) |
Add element consistent mass contribution to matrix after multiplication by coef More... | |
void | MassToRHS (real_t coef=1.) |
Add element consistent mass contribution to right-hand side after multiplication by coef More... | |
void | Mass (real_t coef=1.) |
Add element consistent mass contribution to matrix and right-hand side after multiplication by coef More... | |
void | Deviator (real_t coef=1.) |
Add element deviatoric matrix to left-hand side after multiplication by coef More... | |
void | DeviatorToRHS (real_t coef=1.) |
Add element deviatoric contribution to right-hand side after multiplication by coef More... | |
void | Dilatation (real_t coef=1.) |
Add element dilatational contribution to left-hand side after multiplication by coef More... | |
void | DilatationToRHS (real_t coef=1.) |
Add element dilatational contribution to right-hand side after multiplication by coef More... | |
void | BodyRHS (UserData< real_t > &ud) |
Add body right-hand side term to right-hand side after multiplication by coef More... | |
void | BodyRHS (const Vect< real_t > &f, int opt=GLOBAL_ARRAY) |
Add body right-hand side term to right hand side. More... | |
void | BoundaryRHS (UserData< real_t > &ud) |
Add boundary right-hand side term to right hand side after multiplication by coef More... | |
void | BoundaryRHS (const Vect< real_t > &f) |
Add boundary right-hand side term to right hand side. More... | |
int | SignoriniContact (UserData< real_t > &ud, real_t coef=1.e07) |
Penalty Signorini contact side contribution to matrix and right-hand side. More... | |
int | SignoriniContact (Vect< real_t > &f, real_t coef=1.e07) |
Penalty Signorini contact side contribution to matrix and right-hand side. More... | |
void | Reaction (Vect< real_t > &r) |
Calculate reactions. More... | |
void | ContactPressure (const Vect< real_t > &f, real_t penal, Point< real_t > &p) |
Calculate contact pressure. More... | |
void | Strain (Vect< real_t > &eps) |
Calculate strains in element. More... | |
void | Stress (Vect< real_t > &s, real_t &vm) |
Calculate principal stresses and Von-Mises stress in element. More... | |
void | Periodic (real_t coef=1.e20) |
Add contribution of periodic boundary condition (by a penalty technique). More... | |
void | setLumpedMass () |
Add lumped mass contribution to left and right-hand sides taking into account time integration scheme. | |
void | setMass () |
Add consistent mass contribution to left and right-hand sides taking into account time integration scheme. | |
virtual void | Stiffness (real_t coef=1) |
Add stiffness matrix to left-hand side taking into account time integration scheme, after multiplication by coef [Default: 1 ]. | |
virtual void | StiffnessToRHS (real_t coef=1) |
Add stiffness matrix to right-hand side taking into account time integration scheme, after multiplication by coef [Default: 1 ]. | |
void | setDilatation () |
Add dilatation matrix to left and/or right-hand side taking into account time. | |
void | setDeviator () |
Add deviator matrix to left and/or right-hand side taking into account time integration scheme. | |
void | setStiffness () |
Add convection contribution to left and/or right-hand side taking into account time integration scheme. | |
void | updateBC (const Element &el, const Vect< real_t > &bc) |
Update Right-Hand side by taking into account essential boundary conditions. More... | |
void | updateBC (const Vect< real_t > &bc) |
Update Right-Hand side by taking into account essential boundary conditions. More... | |
void | DiagBC (int dof_type=NODE_DOF, int dof=0) |
Update element matrix to impose bc by diagonalization technique. More... | |
void | LocalNodeVector (Vect< real_t > &b) |
Localize Element Vector from a Vect instance. More... | |
void | ElementNodeVector (const Vect< real_t > &b, LocalVect< real_t, NEE_ > &be) |
Localize Element Vector from a Vect instance. More... | |
void | ElementNodeVector (const Vect< real_t > &b, LocalVect< real_t, NEN_ > &be, int dof) |
Localize Element Vector from a Vect instance. More... | |
void | ElementNodeVectorSingleDOF (const Vect< real_t > &b, LocalVect< real_t, NEN_ > &be) |
Localize Element Vector from a Vect instance. More... | |
void | ElementSideVector (const Vect< real_t > &b, LocalVect< real_t, NSE_ > &be) |
Localize Element Vector from a Vect instance. More... | |
void | ElementVector (const Vect< real_t > &b, int dof_type=NODE_FIELD, int flag=0) |
Localize Element Vector. More... | |
void | SideVector (const Vect< real_t > &b) |
Localize Side Vector. More... | |
void | ElementNodeCoordinates () |
Localize coordinates of element nodes. More... | |
void | SideNodeCoordinates () |
Localize coordinates of side nodes. More... | |
void | ElementAssembly (Matrix< real_t > *A) |
Assemble element matrix into global one. More... | |
void | ElementAssembly (PETScMatrix< real_t > &A) |
Assemble element matrix into global one. More... | |
void | ElementAssembly (PETScVect< real_t > &b) |
Assemble element right-hand side vector into global one. More... | |
void | ElementAssembly (BMatrix< real_t > &A) |
Assemble element matrix into global one. More... | |
void | ElementAssembly (SkSMatrix< real_t > &A) |
Assemble element matrix into global one. More... | |
void | ElementAssembly (SkMatrix< real_t > &A) |
Assemble element matrix into global one. More... | |
void | ElementAssembly (SpMatrix< real_t > &A) |
Assemble element matrix into global one. More... | |
void | ElementAssembly (TrMatrix< real_t > &A) |
Assemble element matrix into global one. More... | |
void | ElementAssembly (Vect< real_t > &v) |
Assemble element vector into global one. More... | |
void | SideAssembly (PETScMatrix< real_t > &A) |
Assemble side matrix into global one. More... | |
void | SideAssembly (PETScVect< real_t > &b) |
Assemble side right-hand side vector into global one. More... | |
void | SideAssembly (Matrix< real_t > *A) |
Assemble side (edge or face) matrix into global one. More... | |
void | SideAssembly (SkSMatrix< real_t > &A) |
Assemble side (edge or face) matrix into global one. More... | |
void | SideAssembly (SkMatrix< real_t > &A) |
Assemble side (edge or face) matrix into global one. More... | |
void | SideAssembly (SpMatrix< real_t > &A) |
Assemble side (edge or face) matrix into global one. More... | |
void | SideAssembly (Vect< real_t > &v) |
Assemble side (edge or face) vector into global one. More... | |
void | DGElementAssembly (Matrix< real_t > *A) |
Assemble element matrix into global one for the Discontinuous Galerkin approximation. More... | |
void | DGElementAssembly (SkSMatrix< real_t > &A) |
Assemble element matrix into global one for the Discontinuous Galerkin approximation. More... | |
void | DGElementAssembly (SkMatrix< real_t > &A) |
Assemble element matrix into global one for the Discontinuous Galerkin approximation. More... | |
void | DGElementAssembly (SpMatrix< real_t > &A) |
Assemble element matrix into global one for the Discontinuous Galerkin approximation. More... | |
void | DGElementAssembly (TrMatrix< real_t > &A) |
Assemble element matrix into global one for the Discontinuous Galerkin approximation. More... | |
void | AxbAssembly (const Element &el, const Vect< real_t > &x, Vect< real_t > &b) |
Assemble product of element matrix by element vector into global vector. More... | |
void | AxbAssembly (const Side &sd, const Vect< real_t > &x, Vect< real_t > &b) |
Assemble product of side matrix by side vector into global vector. More... | |
size_t | getNbNodes () const |
Return number of element nodes. | |
size_t | getNbEq () const |
Return number of element equations. | |
void | setInitialSolution (const Vect< real_t > &u) |
Set initial solution (previous time step) | |
real_t | setMaterialProperty (const string &exp, const string &prop) |
Define a material property by an algebraic expression. More... | |
void | setMesh (Mesh &m) |
Define mesh and renumber DOFs after removing imposed ones. | |
Mesh & | getMesh () const |
Return reference to Mesh instance. More... | |
LinearSolver< real_t > & | getLinearSolver () |
Return reference to linear solver instance. | |
void | setSolver (Iteration ls, Preconditioner pc=IDENT_PREC) |
Choose solver for the linear system. More... | |
int | SolveLinearSystem (Matrix< real_t > *A, Vect< real_t > &b, Vect< real_t > &x) |
Solve the linear system. More... | |
Public Attributes | |
LocalMatrix< real_t, NEE_, NEE_ > | eMat |
LocalMatrix instance containing local matrix associated to current element. | |
LocalMatrix< real_t, NSE_, NSE_ > | sMat |
LocalMatrix instance containing local matrix associated to current side. | |
LocalVect< real_t, NEE_ > | ePrev |
LocalVect instance containing local vector associated to current element. More... | |
LocalVect< real_t, NEE_ > | eRHS |
LocalVect instance containing local right-hand side vector associated to current element. | |
LocalVect< real_t, NEE_ > | eRes |
LocalVect instance containing local residual vector associated to current element. | |
LocalVect< real_t, NSE_ > | sRHS |
LocalVect instance containing local right-hand side vector associated to current side. | |
Protected Member Functions | |
void | Young (const real_t &E) |
Set (constant) Young modulus. | |
void | Young (const string &exp) |
Set Young modulus given by an algebraic expression. | |
void | Poisson (const real_t &nu) |
Set (constant) Poisson ratio. | |
void | Poisson (const string &exp) |
Set Poisson ratio given by an algebraic expression. | |
void | Density (const real_t &rho) |
Set (constant) density. | |
void | Density (const string &exp) |
Set density given by an algebraic expression. | |
void | setMaterial () |
Set material properties. | |
void | Init (const Element *el) |
Set element arrays to zero. | |
void | Init (const Side *sd) |
Set side arrays to zero. | |
Detailed Description
To build element equations for 2-D linearized elasticity using 3-node triangles.
This class enables building finite element arrays for linearized isotropic elasticity problem in 2-D domains using 3-Node triangles.
Unilateral contact is handled using a penalty function. Note that members calculating element arrays have as an argument a real coef
that is multiplied by the contribution of the current element. This makes possible testing different algorithms.
Constructor & Destructor Documentation
Elas2DT3 | ( | ) |
Default Constructor.
Constructs an empty equation.
Constructor using element data.
- Parameters
-
el Pointer to Element instance
Constructor using element, previous time solution u
and time value.
- Parameters
-
[in] el Pointer to element. [in] u Vect instance that contains solution at previous time step. [in] time Current time value [Default: 0
].
Constructor for an element (transient case) with specification of time integration scheme.
- Parameters
-
[in] el Pointer to element. [in] u Vect instance that contains solution at previous time step. [in] time Current time value. [in] deltat Time step. [in] scheme Time Integration Scheme: To be chosen among the enumerated values: -
FORWARD_EULER
: Forward Euler scheme -
BACKWARD_EULER
: Backward Euler scheme, -
CRANK_NICOLSON
: Crank-Nicolson Euler scheme.
-
Constructor using side, previous time solution u
and time value.
- Parameters
-
[in] sd Pointer to side. [in] u Vect instance that contains solution at previous time step. [in] time Current time value [Default: 0
].
Constructor for a side (transient case) with specification of time integration scheme.
- Parameters
-
[in] sd Pointer to side. [in] u Vect instance that contains solution at previous time step. [in] time Current time value [Default: 0
].[in] deltat Time step. [in] scheme Time Integration Scheme
Member Function Documentation
Set media properties.
Useful to override material properties deduced from mesh file.
|
virtual |
Add element lumped mass contribution to matrix after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element lumped mass contribution to right-hand side after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element lumped mass contribution to matrix and right-hand side after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element consistent mass contribution to matrix after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element consistent mass contribution to right-hand side after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element consistent mass contribution to matrix and right-hand side after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element deviatoric matrix to left-hand side after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element deviatoric contribution to right-hand side after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element dilatational contribution to left-hand side after multiplication by coef
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
].
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
|
virtual |
Add element dilatational contribution to right-hand side after multiplication by coef
To use for explicit formulations
- Parameters
-
[in] coef Coefficient to multiply by added term [Default: 1
]
Reimplemented from Equa_Solid< real_t, 3, 6, 2, 4 >.
Add body right-hand side term to right-hand side after multiplication by coef
Body forces are deduced from UserData instance ud
void BodyRHS | ( | const Vect< real_t > & | f, |
int | opt = GLOBAL_ARRAY |
||
) |
Add body right-hand side term to right hand side.
- Parameters
-
[in] f Vector containing source at element nodes (DOF by DOF) [in] opt Vector is local ( LOCAL_ARRAY
) with size6
or global (GLOBAL_ARRAY
) with size = Number of element DOF [Default:GLOBAL_ARRAY
].
Add boundary right-hand side term to right hand side after multiplication by coef
- Parameters
-
[in] ud UserData instance defining boundary forces
Add boundary right-hand side term to right hand side.
- Parameters
-
[in] f Vect instance that contains constant traction to impose to side.
Penalty Signorini contact side contribution to matrix and right-hand side.
- Parameters
-
[in] ud UserData instance defining contact data [in] coef Penalty value by which the added term is multiplied [Default: 1.e07
]
- Returns
- =
0
if no contact is achieved on this side,1
otherwise
Penalty Signorini contact side contribution to matrix and right-hand side.
- Parameters
-
[in] f Vect instance that contains contact data [in] coef Penalty value by which the added term is multiplied [Default: 1.e07
]
- Returns
- =
0
if no contact is achieved on this side,1
otherwise
Calculate reactions.
This function can be invoked in postprocessing
- Parameters
-
[in] r Reaction on the side
Calculate contact pressure.
This function can be invoked in postprocessing
- Parameters
-
[in] f [in] penal Penalty parameter that was used to impose contact condition [out] p Contact pressure
Calculate strains in element.
This function can be invoked in postprocessing.
Calculate principal stresses and Von-Mises stress in element.
- Parameters
-
[in] s vector of principal stresses [in] vm Von-Mises stress. This function can be invoked in postprocessing.
void Periodic | ( | real_t | coef = 1.e20 | ) |
Add contribution of periodic boundary condition (by a penalty technique).
Boundary nodes where periodic boundary conditions are to be imposed must have codes equal to PERIODIC_A
on one side and PERIODIC_B
on the opposite side.
- Parameters
-
[in] coef Value of penalty parameter [Default: 1.e20
]
Update Right-Hand side by taking into account essential boundary conditions.
- Parameters
-
[in] el Reference to current element instance [in] bc Vector that contains imposed values at all DOFs
Update Right-Hand side by taking into account essential boundary conditions.
- Parameters
-
[in] bc Vector that contains imposed values at all DOFs
- Remarks
- The current element is pointed by
_theElement
|
inherited |
Update element matrix to impose bc by diagonalization technique.
- Parameters
-
[in] dof_type DOF type option. To choose among the enumerated values: -
NODE_FIELD
, DOFs are supported by nodes [Default] -
ELEMENT_FIELD
, DOFs are supported by elements -
SIDE_FIELD
, DOFs are supported by sides
[in] dof DOF setting: -
= 0
, All DOFs are taken into account [Default] -
!= 0
, Only DOF No.dof
is handled in the system
-
Localize Element Vector from a Vect instance.
- Parameters
-
[in] b Reference to global vector to be localized. The resulting local vector can be accessed by attribute ePrev. This member function is to be used if a constructor with Element was invoked.
Localize Element Vector from a Vect instance.
- Parameters
-
[in] b Global vector to be localized. [out] be Local vector, the length of which is the total number of element equations.
- Remarks
- All degrees of freedom are transferred to the local vector
|
inherited |
Localize Element Vector from a Vect instance.
- Parameters
-
[in] b Global vector to be localized. [out] be Local vector, the length of which is the total number of element equations. [in] dof Degree of freedom to transfer to the local vector
- Remarks
- Only yhe dega dof is transferred to the local vector
|
inherited |
Localize Element Vector from a Vect instance.
- Parameters
-
[in] b Global vector to be localized. [out] be Local vector, the length of which is the total number of element equations.
- Remarks
- Vector
b
is assumed to contain only one degree of freedom by node.
Localize Element Vector from a Vect instance.
- Parameters
-
[in] b Global vector to be localized. [out] be Local vector, the length of which is
Localize Element Vector.
- Parameters
-
[in] b Global vector to be localized [in] dof_type DOF type option. To choose among the enumerated values: -
NODE_FIELD
, DOFs are supported by nodes [Default] -
ELEMENT_FIELD
, DOFs are supported by elements -
SIDE_FIELD
, DOFs are supported by sides
[in] flag Option to set: -
= 0
, All DOFs are taken into account [Default] -
!= 0
, Only DOF numberdof
is handled in the system
ePrev
. -
- Remarks
- This member function is to be used if a constructor with Element was invoked. It uses the Element pointer
_theElement
Localize Side Vector.
- Parameters
-
[in] b Global vector to be localized -
NODE_FIELD
, DOFs are supported by nodes [ default ] -
ELEMENT_FIELD
, DOFs are supported by elements -
SIDE_FIELD
, DOFs are supported by sides
ePrev
. -
- Remarks
- This member function is to be used if a constructor with Side was invoked. It uses the Side pointer
_theSide
|
inherited |
Localize coordinates of element nodes.
Coordinates are stored in array _x[0], _x[1], ...
which are instances of class Point<real_t>
- Remarks
- This member function uses the Side pointer
_theSide
|
inherited |
Localize coordinates of side nodes.
Coordinates are stored in array _x[0], _x[1], ...
which are instances of class Point<real_t>
- Remarks
- This member function uses the Element pointer
_theElement
Assemble element matrix into global one.
- Parameters
-
A Pointer to global matrix (abstract class: can be any of classes SkSMatrix, SkMatrix, SpMatrix)
- Warning
- The element pointer is given by the global variable
theElement
|
inherited |
Assemble element matrix into global one.
- Parameters
-
A Reference to global matrix
- Warning
- The element pointer is given by the global variable
theElement
Assemble element right-hand side vector into global one.
- Parameters
-
b Reference to global right-hand side vector
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one.
- Parameters
-
A Global matrix stored as a BMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one.
- Parameters
-
A Global matrix stored as an SkSMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one.
- Parameters
-
[in] A Global matrix stored as an SkMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one.
- Parameters
-
[in] A Global matrix stored as an SpMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one.
- Parameters
-
[in] A Global matrix stored as an TrMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble element vector into global one.
- Parameters
-
[in] v Global vector (Vect instance)
- Warning
- The element pointer is given by the global variable
theElement
|
inherited |
Assemble side matrix into global one.
- Parameters
-
A Reference to global matrix
- Warning
- The side pointer is given by the global variable
theSide
Assemble side right-hand side vector into global one.
- Parameters
-
b Reference to global right-hand side vector
- Warning
- The side pointer is given by the global variable
theSide
Assemble side (edge or face) matrix into global one.
- Parameters
-
A Pointer to global matrix (abstract class: can be any of classes SkSMatrix, SkMatrix, SpMatrix)
- Warning
- The side pointer is given by the global variable
theSide
Assemble side (edge or face) matrix into global one.
- Parameters
-
[in] A Global matrix stored as an SkSMatrix instance
- Warning
- The side pointer is given by the global variable
theSide
Assemble side (edge or face) matrix into global one.
- Parameters
-
[in] A Global matrix stored as an SkMatrix instance
- Warning
- The side pointer is given by the global variable
theSide
Assemble side (edge or face) matrix into global one.
- Parameters
-
[in] A Global matrix stored as an SpMatrix instance
- Warning
- The side pointer is given by the global variable
theSide
Assemble side (edge or face) vector into global one.
- Parameters
-
[in] v Global vector (Vect instance)
- Warning
- The side pointer is given by the global variable
theSide
Assemble element matrix into global one for the Discontinuous Galerkin approximation.
- Parameters
-
A Pointer to global matrix (abstract class: can be any of classes SkSMatrix, SkMatrix, SpMatrix)
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one for the Discontinuous Galerkin approximation.
- Parameters
-
A Global matrix stored as an SkSMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one for the Discontinuous Galerkin approximation.
- Parameters
-
[in] A Global matrix stored as an SkMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one for the Discontinuous Galerkin approximation.
- Parameters
-
[in] A Global matrix stored as an SpMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble element matrix into global one for the Discontinuous Galerkin approximation.
- Parameters
-
[in] A Global matrix stored as an TrMatrix instance
- Warning
- The element pointer is given by the global variable
theElement
Assemble product of element matrix by element vector into global vector.
- Parameters
-
[in] el Reference to Element instance [in] x Global vector to multiply by (Vect instance) [out] b Global vector to add (Vect instance)
Assemble product of side matrix by side vector into global vector.
- Parameters
-
[in] sd Reference to Side instance [in] x Global vector to multiply by (Vect instance) [out] b Global vector (Vect instance)
|
inherited |
Define a material property by an algebraic expression.
- Parameters
-
[in] exp Algebraic expression [in] prop Property name
- Returns
- Return value in expression evaluation:
-
=0
, Normal evaluation -
!=0
, An error message is displayed
-
|
inherited |
Return reference to Mesh instance.
- Returns
- Reference to Mesh instance
|
inherited |
Choose solver for the linear system.
- Parameters
-
[in] ls Solver of the linear system. To choose among the enumerated values: DIRECT_SOLVER
,CG_SOLVER
,GMRES_SOLVER
-
DIRECT_SOLVER
, Use a facorization solver [default] -
CG_SOLVER
, Conjugate Gradient iterative solver -
CGS_SOLVER
, Squared Conjugate Gradient iterative solver -
BICG_SOLVER
, BiConjugate Gradient iterative solver -
BICG_STAB_SOLVER
, BiConjugate Gradient Stabilized iterative solver -
GMRES_SOLVER
, GMRES iterative solver -
QMR_SOLVER
, QMR iterative solver
[in] pc Preconditioner to associate to the iterative solver. If the direct solver was chosen for the first argument this argument is not used. Otherwise choose among the enumerated values: -
IDENT_PREC
, Identity preconditioner (no preconditioning [default]) -
DIAG_PREC
, Diagonal preconditioner -
ILU_PREC
, Incomplete LU factorization preconditioner
-
Solve the linear system.
- Parameters
-
[in] A Pointer to matrix of the system (Instance of class SpMatrix) [in] b Vector containing right-hand side [in,out] x Vector containing initial guess of solution on input, actual solution on output