Rocstar-legacy/get__mat__stiffness_8f90_source.html

 !*********************************************************************

 !* Illinois Open Source License                                      *

 !*                                                                   *

 !* University of Illinois/NCSA                                       *

 !* Open Source License                                               *

 !*                                                                   *

 !* Copyright@2008, University of Illinois.  All rights reserved.     *

 !*                                                                   *

 !*  Developed by:                                                    *

 !*                                                                   *

 !*     Center for Simulation of Advanced Rockets                     *

 !*                                                                   *

 !*     University of Illinois                                        *

 !*                                                                   *

 !*     www.csar.uiuc.edu                                             *

 !*                                                                   *

 !* Permission is hereby granted, free of charge, to any person       *

 !* obtaining a copy of this software and associated documentation    *

 !* files (the "Software"), to deal with the Software without         *

 !* restriction, including without limitation the rights to use,      *

 !* copy, modify, merge, publish, distribute, sublicense, and/or      *

 !* sell copies of the Software, and to permit persons to whom the    *

 !* Software is furnished to do so, subject to the following          *

 !* conditions:                                                       *

 !*                                                                   *

 !*                                                                   *

 !* @ Redistributions of source code must retain the above copyright  *

 !*   notice, this list of conditions and the following disclaimers.  *

 !*                                                                   *

 !* @ Redistributions in binary form must reproduce the above         *

 !*   copyright notice, this list of conditions and the following     *

 !*   disclaimers in the documentation and/or other materials         *

 !*   provided with the distribution.                                 *

 !*                                                                   *

 !* @ Neither the names of the Center for Simulation of Advanced      *

 !*   Rockets, the University of Illinois, nor the names of its       *

 !*   contributors may be used to endorse or promote products derived *

 !*   from this Software without specific prior written permission.   *

 !*                                                                   *

 !* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,   *

 !* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES   *

 !* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND          *

 !* NONINFRINGEMENT.  IN NO EVENT SHALL THE CONTRIBUTORS OR           *

 !* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER       *

 !* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,   *

 !* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE    *

 !* USE OR OTHER DEALINGS WITH THE SOFTWARE.                          *

 !*********************************************************************

 !* Please acknowledge The University of Illinois Center for          *

 !* Simulation of Advanced Rockets in works and publications          *

 !* resulting from this software or its derivatives.                  *

 !*********************************************************************

 !------------------------------------------------------GET_MAT_STIFFNESS

 SUBROUTINE get_mat_stiffness(e,dnu,dmat)

 ! *--------------------------------------------------------------------*

 ! |                                                                    |

 ! |    Returns the material stiffness matrix, given the material       |

 ! |    properties (FOR LINEAR ELASTICITY ONLY).                        |

 ! |                                                                    |

 ! |    <dmat>      : 9 x 9 matrix of the material tensor               |

 ! |    <props>     : vector that contains material properties          |

 ! |                  props(1) : Young's Modulus                        |

 ! |                  props(2) : Poisson's Ratio                        |

 ! |                                                                    |

 ! *--------------------------------------------------------------------*


   IMPLICIT NONE


   REAL*8 , DIMENSION(1:9,1:9) :: dmat

   REAL*8  :: e, dnu

   REAL*8  :: d1111,d1122,d1212


 !  Initialize coefficients


   d1111 = e * (1.d0-dnu) / ((1.d0+dnu)*(1.d0-2.d0*dnu) )

   d1122 = e * dnu / ((1.d0+dnu)*(1.d0-2.d0*dnu) )

   d1212 = e / ((1.d0+dnu)*2.d0)


 !  Compute <mat_c>


   dmat(1:9,1:9) = 0.d0


   dmat(1,1) = d1111

   dmat(1,5) = d1122

   dmat(1,9) = d1122


   dmat(2,2) = d1212

   dmat(2,4) = d1212


   dmat(3,3) = d1212

   dmat(3,7) = d1212


   dmat(4,2) = d1212

   dmat(4,4) = d1212


   dmat(5,1) = d1122

   dmat(5,5) = d1111

   dmat(5,9) = d1122


   dmat(6,6) = d1212

   dmat(6,8) = d1212


   dmat(7,3) = d1212

   dmat(7,7) = d1212


   dmat(8,6) = d1212

   dmat(8,8) = d1212


   dmat(9,1) = d1122

   dmat(9,5) = d1122

   dmat(9,9) = d1111


   RETURN

 END SUBROUTINE get_mat_stiffness


get_mat_stiffness
subroutine get_mat_stiffness(e, dnu, dmat)
Definition: get_mat_stiffness.f90:54