structural_mechanics_element_utilities.h

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//    |  /           |
//    ' /   __| _` | __|  _ \   __|
//    . \  |   (   | |   (   |\__ `
//   _|\_\_|  \__,_|\__|\___/ ____/
//                   Multi-Physics
//
//  License:         BSD License
//                   Kratos default license: kratos/license.txt
//
//  Main authors:    Philipp Bucher
//                   Vahid Galavi
 
#if !defined( KRATOS_GEO_STRUCTURAL_MECHANICS_ELEMENT_UTILITIES_H_INCLUDED )
#define  KRATOS_GEO_STRUCTURAL_MECHANICS_ELEMENT_UTILITIES_H_INCLUDED
 
// System includes
 
// External includes
 
// Project includes
#include "includes/element.h"
 
namespace Kratos {
class GeoStructuralMechanicsElementUtilities {
 
public:
static bool ComputeLumpedMassMatrix(
    const Properties& rProperites,
    const ProcessInfo& rCurrentProcessInfo);
 
static bool HasRayleighDamping(
    const Properties& rProperites,
    const ProcessInfo& rCurrentProcessInfo);
 
static double GetRayleighAlpha(
    const Properties& rProperites,
    const ProcessInfo& rCurrentProcessInfo);
 
static double GetRayleighBeta(
    const Properties& rProperites,
    const ProcessInfo& rCurrentProcessInfo);
 
static double GetDensityForMassMatrixComputation(const Element& rElement);
 
static void CalculateRayleighDampingMatrix(
    Element& rElement,
    Element::MatrixType& rDampingMatrix,
    const ProcessInfo& rCurrentProcessInfo,
    const std::size_t MatrixSize);
 
static double CalculateReferenceLength2D2N(const Element& rElement);
 
static double CalculateCurrentLength2D2N(const Element& rElement);
 
static double CalculateReferenceLength3D2N(const Element& rElement);
 
static double CalculateCurrentLength3D2N(const Element& rElement);
 
}; // class StructuralMechanicsElementUtilities.
}  // namespace Kratos.
 
#endif // KRATOS_GEO_STRUCTURAL_MECHANICS_ELEMENT_UTILITIES_H_INCLUDED  defined