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Public Member Functions |
| | PVDEquationsWithPressure () |
| | Constructor, by default the element is NOT incompressible.
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| void | get_stress (const Vector< double > &s, DenseMatrix< double > &sigma) |
| | Return the 2nd Piola Kirchoff stress tensor, as calculated from the constitutive law at specified local coordinate.
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| bool & | incompressible () |
| | Return the boolean incompressible.
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| virtual unsigned | npres_solid () const =0 |
| | Return the number of solid pressure degrees of freedom.
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| virtual double | solid_p (const unsigned &l)=0 |
| | Return the lth solid pressure.
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| virtual void | set_solid_p (const unsigned &l, const double &p_value)=0 |
| | Set the lth solid pressure to p_value.
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| virtual int | solid_p_nodal_index () const |
| | Return the index at which the solid pressure is stored if it is stored at the nodes. If not stored at the nodes this will return a negative number.
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| void | fill_in_contribution_to_residuals (Vector< double > &residuals) |
| | Fill in the residuals.
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| void | fill_in_contribution_to_jacobian (Vector< double > &residuals, DenseMatrix< double > &jacobian) |
| | Fill in contribution to Jacobian (either by FD or analytically, for the positional variables; control this via evaluate_jacobian_by_fd(). Note: Jacobian entries arising from derivatives w.r.t. pressure terms are always computed analytically.
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| double | interpolated_solid_p (const Vector< double > &s) |
| | Return the interpolated_solid_pressure.
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| void | output (std::ostream &outfile) |
| | Output: x,y,[z],xi0,xi1,[xi2],p,gamma.
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| void | output (std::ostream &outfile, const unsigned &n_plot) |
| | Output: x,y,[z],xi0,xi1,[xi2],p,gamma.
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| void | output (FILE *file_pt) |
| | C-style output: x,y,[z],xi0,xi1,[xi2],p,gamma.
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| void | output (FILE *file_pt, const unsigned &n_plot) |
| | C-stsyle output: x,y,[z],xi0,xi1,[xi2],p,gamma.
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Protected Member Functions |
| virtual int | solid_p_local_eqn (const unsigned &i)=0 |
| | Access function that returns local eqn number information for the solid pressure.
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| void | get_stress (const DenseMatrix< double > &g, const DenseMatrix< double > &G, DenseMatrix< double > &sigma_dev, DenseMatrix< double > &Gcontra, double &gen_dil, double &inv_kappa) |
| | Return the deviatoric part of the 2nd Piola Kirchhoff stress tensor, as calculated from the constitutive law in the nearly incompresible formulation. Also return the contravariant deformed metric tensor, the generalised dilatation, and the inverse of the bulk modulus.
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| virtual void | solid_pshape (const Vector< double > &s, Shape &psi) const =0 |
| | Return the solid pressure shape functions.
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| void | solid_pshape_at_knot (const unsigned &ipt, Shape &psi) const |
| | Return the stored solid shape functions at the knots.
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| virtual void | fill_in_generic_residual_contribution_pvd_with_pressure (Vector< double > &residuals, DenseMatrix< double > &jacobian, const unsigned &flag) |
| | Returns the residuals for the discretised principle of virtual displacements, formulated in the incompressible/ near-incompressible case.
- If flag==0, compute only the residual vector.
- If flag==1, compute residual vector and fully analytical Jacobian
- If flag==2, also compute the pressure-related entries in the Jacobian (all others need to be done by finite differencing.
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| void | get_stress (const DenseMatrix< double > &g, const DenseMatrix< double > &G, DenseMatrix< double > &sigma_dev, DenseMatrix< double > &Gcontra, double &detG) |
| | Return the deviatoric part of the 2nd Piola Kirchhoff stress tensor, as calculated from the constitutive law in the incompresible formulation. Also return the contravariant deformed metric tensor, and the determinant of the deformed covariant metric tensor (likely to be needed in the incompressibility constraint).
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Protected Attributes |
| bool | Incompressible |
| | Boolean to determine whether the solid is incompressible or not.
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Static Private Attributes |
| static int | Solid_pressure_not_stored_at_node = -100 |
| | Static "magic" number that indicates that the solid pressure is not stored at a node.
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