simo_step_method.hpp

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//
//   Project Name:        KratosSolidMechanicsApplication $
//   Created by:          $Author:            JMCarbonell $
//   Last modified by:    $Co-Author:                     $
//   Date:                $Date:            November 2017 $
//   Revision:            $Revision:                  0.0 $
//
//
 
#if !defined(KRATOS_SIMO_STEP_METHOD_H_INCLUDED)
#define  KRATOS_SIMO_STEP_METHOD_H_INCLUDED
 
// System includes
 
// External includes
 
// Project includes
#include "custom_solvers/time_integration_methods/bossak_step_method.hpp"
 
namespace Kratos
{
 
 
 
 
 
 
 
 
  template<class TVariableType, class TValueType>
  class SimoStepMethod : public BossakStepMethod<TVariableType,TValueType>
  {
  public:
 
 
    typedef TimeIntegrationMethod<TVariableType,TValueType>  BaseType;
 
    typedef typename BaseType::Pointer                BasePointerType;
 
    typedef typename BaseType::NodeType                      NodeType;
 
    typedef typename BaseType::VariablePointer        VariablePointer;
 
    typedef BossakStepMethod<TVariableType,TValueType>    DerivedType;
 
 
    KRATOS_CLASS_POINTER_DEFINITION( SimoStepMethod );
 
 
 
    SimoStepMethod() : DerivedType() {}
 
    SimoStepMethod(const TVariableType& rVariable) : DerivedType(rVariable) {}
 
    SimoStepMethod(const TVariableType& rVariable, const TVariableType& rFirstDerivative, const TVariableType& rSecondDerivative) : DerivedType(rVariable,rFirstDerivative,rSecondDerivative) {}
 
    SimoStepMethod(const TVariableType& rVariable, const TVariableType& rFirstDerivative, const TVariableType& rSecondDerivative, const TVariableType& rPrimaryVariable) : DerivedType(rVariable,rFirstDerivative,rSecondDerivative,rPrimaryVariable) {}
 
    SimoStepMethod(SimoStepMethod& rOther) : DerivedType(rOther) {}
 
    BasePointerType Clone() override
    {
      return BasePointerType( new SimoStepMethod(*this) );
    }
 
    ~SimoStepMethod() override{}
 
 
 
 
 
 
 
    std::string Info() const override
    {
        std::stringstream buffer;
        buffer << "SimoStepMethod";
        return buffer.str();
    }
 
    void PrintInfo(std::ostream& rOStream) const override
    {
        rOStream << "SimoStepMethod";
    }
 
    void PrintData(std::ostream& rOStream) const override
    {
      rOStream << "SimoStepMethod Data";
    }
 
 
 
 
 
  protected:
 
 
 
 
 
 
    void AssignFromVariable(NodeType& rNode) override
    {
      KRATOS_TRY
 
      KRATOS_CATCH( "" )
    }
 
    void AssignFromFirstDerivative(NodeType& rNode) override
    {
      KRATOS_TRY
 
      // predict variable from first derivative
      TValueType& CurrentVariable                = rNode.FastGetSolutionStepValue(*this->mpVariable,         0);
      const TValueType& PreviousVariable         = rNode.FastGetSolutionStepValue(*this->mpVariable,         1);
 
      const TValueType& CurrentFirstDerivative   = rNode.FastGetSolutionStepValue(*this->mpFirstDerivative,  0);
 
      CurrentVariable  = PreviousVariable + (CurrentFirstDerivative) * (1.0/this->mNewmark.c1);
 
      TValueType& CurrentSecondDerivative = rNode.FastGetSolutionStepValue(*this->mpSecondDerivative, 0);
      CurrentSecondDerivative -= CurrentSecondDerivative;
 
      
      KRATOS_CATCH( "" )
    }
 
    void AssignFromSecondDerivative(NodeType& rNode) override
    {
      KRATOS_TRY
 
      // predict variable from second derivative
      TValueType& CurrentVariable                 = rNode.FastGetSolutionStepValue(*this->mpVariable,         0);
      const TValueType& PreviousVariable          = rNode.FastGetSolutionStepValue(*this->mpVariable,         1);
 
      const TValueType& CurrentFirstDerivative    = rNode.FastGetSolutionStepValue(*this->mpFirstDerivative,  0);
 
      const TValueType& CurrentSecondDerivative   = rNode.FastGetSolutionStepValue(*this->mpSecondDerivative, 0);
 
 
      CurrentVariable  = PreviousVariable + CurrentFirstDerivative * (1.0/this->mNewmark.c1) + CurrentSecondDerivative * (1.0/this->mNewmark.c0);
 
      KRATOS_CATCH( "" )
    }
 
    void PredictVariable(NodeType& rNode) override
    {
      KRATOS_TRY
          
      // const TValueType& CurrentStepVariable = rNode.FastGetSolutionStepValue(*this->mpStepVariable,     0);
      // TValueType& CurrentVariable           = rNode.FastGetSolutionStepValue(*this->mpVariable,         0);
 
      // CurrentVariable += CurrentStepVariable;
      
      KRATOS_CATCH( "" )
    }
 
    void PredictFirstDerivative(NodeType& rNode) override
    {
      KRATOS_TRY
 
      const TValueType& CurrentStepVariable      = rNode.FastGetSolutionStepValue(*this->mpStepVariable,     0);
      TValueType& CurrentFirstDerivative         = rNode.FastGetSolutionStepValue(*this->mpFirstDerivative,  0);
 
      CurrentFirstDerivative = this->mNewmark.c1 * (CurrentStepVariable);
 
      KRATOS_CATCH( "" )
    }
 
    void PredictSecondDerivative(NodeType& rNode) override
    {
      KRATOS_TRY
 
      TValueType& CurrentSecondDerivative        = rNode.FastGetSolutionStepValue(*this->mpSecondDerivative, 0);
 
      const TValueType& CurrentFirstDerivative   = rNode.FastGetSolutionStepValue(*this->mpFirstDerivative,  0);
      const TValueType& PreviousFirstDerivative  = rNode.FastGetSolutionStepValue(*this->mpFirstDerivative,  1);
 
      CurrentSecondDerivative = (this->mNewmark.c0/this->mNewmark.c1) * (CurrentFirstDerivative-PreviousFirstDerivative);
 
      KRATOS_CATCH( "" )
    }
 
 
    void UpdateStepVariable(NodeType& rNode) override
    {
      KRATOS_TRY
 
      // predict step variable from previous and current values
      TValueType& CurrentStepVariable            = rNode.FastGetSolutionStepValue(*this->mpStepVariable,     0);
 
      const TValueType& CurrentVariable          = rNode.FastGetSolutionStepValue(*this->mpVariable,         0);
      const TValueType& PreviousVariable         = rNode.FastGetSolutionStepValue(*this->mpVariable,         1);
 
      CurrentStepVariable += CurrentVariable-PreviousVariable;
 
      KRATOS_CATCH( "" )
    }
 
 
    void UpdateVariable(NodeType& rNode) override
    {
      KRATOS_TRY
 
      const TValueType& CurrentVariable          = rNode.FastGetSolutionStepValue(*this->mpVariable,         0);
      TValueType& PreviousVariable               = rNode.FastGetSolutionStepValue(*this->mpVariable,         1);
 
      // update variable previous iteration instead of previous step
      PreviousVariable = CurrentVariable;
 
      KRATOS_CATCH( "" )
    }
 
    void UpdateFirstDerivative(NodeType& rNode) override
    {
      KRATOS_TRY
 
      const TValueType& CurrentVariable          = rNode.FastGetSolutionStepValue(*this->mpVariable,         0);
      TValueType& CurrentFirstDerivative         = rNode.FastGetSolutionStepValue(*this->mpFirstDerivative,  0);
 
      const TValueType& PreviousVariable         = rNode.FastGetSolutionStepValue(*this->mpVariable,         1);
 
      CurrentFirstDerivative += this->mNewmark.c1 * (CurrentVariable-PreviousVariable);
 
      KRATOS_CATCH( "" )
    }
 
    void UpdateSecondDerivative(NodeType& rNode) override
    {
      KRATOS_TRY
 
      const TValueType& CurrentVariable          = rNode.FastGetSolutionStepValue(*this->mpVariable,         0);
      TValueType& CurrentSecondDerivative        = rNode.FastGetSolutionStepValue(*this->mpSecondDerivative, 0);
 
      const TValueType& PreviousVariable         = rNode.FastGetSolutionStepValue(*this->mpVariable,         1);
 
      CurrentSecondDerivative += this->mNewmark.c0 * (CurrentVariable-PreviousVariable);
 
      KRATOS_CATCH( "" )
    }
 
 
 
 
 
 
 
  private:
 
 
 
 
 
 
    friend class Serializer;
 
    void save(Serializer& rSerializer) const override
    {
      KRATOS_SERIALIZE_SAVE_BASE_CLASS( rSerializer, DerivedType )
    };
 
    void load(Serializer& rSerializer) override
    {
      KRATOS_SERIALIZE_LOAD_BASE_CLASS( rSerializer, DerivedType )
    };
 
 
 
 
  }; // Class SimoStepMethod
 
 
 
 
 
  template<class TVariableType, class TValueType>
  inline std::istream & operator >> (std::istream & rIStream, SimoStepMethod<TVariableType,TValueType>& rThis)
  {
    return rIStream;
  }
 
  template<class TVariableType, class TValueType>
  inline std::ostream & operator << (std::ostream & rOStream, const SimoStepMethod<TVariableType,TValueType>& rThis)
  {
    return rOStream << rThis.Info();
  }
 
 
 
}  // namespace Kratos.
 
#endif // KRATOS_SIMO_STEP_METHOD_H_INCLUDED defined