Tension IV

With this series of examples you can study a specimen under tension and see the effects of different number of elements through thickness and different materials. Fourth example shows usage of shell elements and user defined strain rate dependent plastic material with specified failure strain.

*BOUNDARY_PRESCRIBED_MOTION_NODE
*BOUNDARY_SPC_NODE
*CONTROL_TERMINATION
*CONTROL_TIMESTEP
*DATABASE_BINARY_D3PLOT
*DATABASE_CROSS_SECTION_PLANE
*DATABASE_ELOUT
*DATABASE_GLSTAT
*DATABASE_HISTORY_SHELL
*DATABASE_NODAL_FORCE_GROUP
*DATABASE_NODFOR
*DATABASE_SECFORC
*DEFINE_CURVE
*ELEMENT_SHELL
*END
*KEYWORD
*MAT_STRAIN_RATE_DEPENDENT_PLASTICITY
*NODE
*PART
*SECTION_SHELL
*SET_NODE_LIST
*SET_PART_LIST
*TITLE

  *KEYWORD
  *TITLE
  TENSION TEST SIMULATION, mat=19, displacement
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *CONTROL_TIMESTEP
      0.0000    0.9000
  *CONTROL_TERMINATION
      0.0100         0
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *DATABASE_BINARY_D3PLOT
      0.0010
  *DATABASE_GLSTAT
      0.0001
  *DATABASE_NODFOR
      0.0001
  *DATABASE_ELOUT
     0.00001
  *DATABASE_SECFORC
     0.00001
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *DATABASE_NODAL_FORCE_GROUP
          2
  *SET_NODE_LIST
          2
  29,30,31,32,33,38,39
  *DATABASE_HISTORY_SHELL
  71,72,73,74,75,76,77,78
  79,80
  *SET_PART_LIST
  1
  1
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *DATABASE_CROSS_SECTION_PLANE
           1         5        10        10       200        10        10
           5       -10       -10        20        20
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *MAT_STRAIN_RATE_DEPENDENT_PLASTICITY
  $      MID        RO         E        PR
           1 7.890E-09 2.100E+05 3.000E-01
  $      LC1      ETAN       LC2       LC3       LC4
           2   1.7E+03         3         4         5
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  $load curve to define yield stress as function of effective strain
  *DEFINE_CURVE
           2
                   0.0               440.0
               1.0E+05               440.0
  $load curve to define E as function of of the effective strain rate
  *DEFINE_CURVE
           3
                   0.0             2.1E+05
               1.0E+05             2.1E+05
  $load curve to define Et as function of the effective strain rate
  *DEFINE_CURVE
           4
                   0.0             9.7E+02
               1.0E+05             9.7E+02
  $load curve define Von Mises stress at failure vs the effective strain rate
  *DEFINE_CURVE
           5
                   0.0             6.4E+02
               1.0E+05             6.4E+04
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *SECTION_SHELL
           1         2 0.000E+00 3.000E+00 
   2.670E-00 2.670E-00 2.670E-00 2.670E-00 
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *PART
  SHELL
           1         1         1
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *DEFINE_CURVE
           1
  0.00000000000000E+00 0.0000000000000E+00
  0.01000000000000E+00 50.000000000000E+00
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *BOUNDARY_SPC_NODE
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *BOUNDARY_PRESCRIBED_MOTION_NODE
  $---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
  *NODE
  $
  *ELEMENT_SHELL
  $
  *END