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itkFEMElement1DStress.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkFEMElement1DStress.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/09/10 14:29:39 $
00007   Version:   $Revision: 1.6 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 
00018 #ifndef __itkFEMElement1DStress_h
00019 #define __itkFEMElement1DStress_h
00020 
00021 #include "itkFEMElementBase.h"
00022 #include "itkFEMMaterialLinearElasticity.h"
00023 
00024 namespace itk {
00025 namespace fem {
00026 
00027 
00028 
00029 
00044 template<class TBaseClass=Element>
00045 class Element1DStress : public TBaseClass
00046 {
00047 FEM_ABSTRACT_CLASS(Element1DStress,TBaseClass)
00048 public:
00049 
00050   // Repeat the required typedefs and enums from parent class
00051   typedef typename Superclass::Float Float;
00052   typedef typename Superclass::MatrixType MatrixType;
00053   typedef typename Superclass::VectorType VectorType;
00054 
00058   virtual void Read( std::istream&, void* info );
00059 
00063   virtual void Write( std::ostream& f ) const;
00064 
00068   Element1DStress();
00069 
00070 
00071 
00072 
00074   /*
00075    * Methods related to the physics of the problem.
00076    */
00077 
00081   virtual void GetStrainDisplacementMatrix(MatrixType& B, const MatrixType& shapeDgl) const;
00082 
00086   virtual void GetMaterialMatrix(MatrixType& D) const;
00087 
00093   virtual void GetStiffnessMatrix(MatrixType& Ke) const;
00094 
00102   virtual unsigned int GetNumberOfDegreesOfFreedomPerNode( void ) const
00103   { return 2; }
00104 
00105 
00106 
00107 public:
00108 
00112   MaterialLinearElasticity::ConstPointer m_mat;
00113   virtual Material::ConstPointer GetMaterial(void) const { return m_mat; }
00114   virtual void SetMaterial(Material::ConstPointer mat_ ) { m_mat=dynamic_cast<const MaterialLinearElasticity*>(&*mat_); }
00115 
00116 
00117 }; // class Element1DStress
00118 
00119 
00120 
00121 
00122 #ifdef _MSC_VER
00123 // Declare a static dummy function to prevent a MSVC 6.0 SP5 from crashing.
00124 // I have no idea why things don't work when this is not declared, but it
00125 // looks like this declaration makes compiler forget about some of the
00126 // troubles it has with templates.
00127 static void Dummy( void );
00128 #endif // #ifdef _MSC_VER
00129 
00130 }} // end namespace itk::fem
00131 
00132 #ifndef ITK_MANUAL_INSTANTIATION
00133 #include "itkFEMElement1DStress.txx"
00134 #endif
00135 
00136 #endif  // #ifndef __itkFEMElement1DStress_h

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