ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkFEMElement1DStress.h
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1 /*=========================================================================
2  *
3  * Copyright Insight Software Consortium
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0.txt
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  *=========================================================================*/
18 
19 #ifndef __itkFEMElement1DStress_h
20 #define __itkFEMElement1DStress_h
21 
22 #include "itkFEMElementBase.h"
24 
25 namespace itk
26 {
27 namespace fem
28 {
44 template <class TBaseClass = Element>
45 class Element1DStress : public TBaseClass
46 {
47 public:
48 
51  typedef TBaseClass Superclass;
54 
56  itkTypeMacro(Element1DStress, TBaseClass);
57 
58  // Repeat the required typedefs and enums from parent class
59  typedef typename Superclass::Float Float;
62 
67 
68  // ////////////////////////////////////////////////////////////////////////
69  /*
70  * Methods related to the physics of the problem.
71  */
72 
76  virtual void GetStrainDisplacementMatrix(MatrixType & B, const MatrixType & shapeDgl) const;
77 
81  virtual void GetMaterialMatrix(MatrixType & D) const;
82 
88  virtual void GetStiffnessMatrix(MatrixType & Ke) const;
89 
97  virtual unsigned int GetNumberOfDegreesOfFreedomPerNode(void) const
98  {
99  return 2;
100  }
101 
106  {
107  return m_mat;
108  }
109 
111  {
112  m_mat = dynamic_cast<const MaterialLinearElasticity *>(mat_.GetPointer());
113  }
114 
115 protected:
116 
117  virtual void PrintSelf(std::ostream& os, Indent indent) const;
118 
123 
124 }; // class Element1DStress
125 
126 }
127 } // end namespace itk::fem
128 
129 #ifndef ITK_MANUAL_INSTANTIATION
130 #include "itkFEMElement1DStress.hxx"
131 #endif
132 
133 #endif // #ifndef __itkFEMElement1DStress_h
134