Bar V — Welcome to LS-DYNA Examples

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This is a model of a Taylor bar impacting a rigid wall. The bar is discretized using SPH method. Compare ALE course for solution of the Problem with Lagrangian and Eulerian methods.

Keywords

*CONTROL_CONTACT
*CONTROL_CPU
*CONTROL_DAMPING
*CONTROL_ENERGY
*CONTROL_OUTPUT
*CONTROL_SHELL
*CONTROL_SPH
*CONTROL_STRUCTURED
*CONTROL_TERMINATION
*CONTROL_TIMESTEP
*DATABASE_BINARY_D3PLOT
*DATABASE_EXTENT_BINARY
*DATABASE_GLSTAT
*DATABASE_MATSUM
*DEFINE_BOX
*ELEMENT_SOLID
*ELEMENT_SPH
*END
*EOS_GRUNEISEN
*INITIAL_VELOCITY
*KEYWORD
*MAT_ELASTIC_PLASTIC_HYDRO
*MAT_PIECEWISE_LINEAR_PLASTICITY
*NODE
*PART
*RIGIDWALL_PLANAR
*SECTION_SOLID
*SECTION_SPH
*SET_NODE_LIST_GENERATE
*TITLE

Reduced Input

  *KEYWORD
  *CONTROL_STRUCTURED
  *TITLE
  Taylor test problem                                                     
  *CONTROL_TERMINATION
   0.2000000         0 0.0000000         0 0.0000000
  *CONTROL_TIMESTEP
   0.0000000 0.0000000         0 0.0000000 0.0000000         0         0         0
  *CONTROL_SHELL
   0.0000000         0         0         0         9         0         0
  *CONTROL_DAMPING
           0 0.0000000 0.0000000 0.0000000 0.0000000         0 0.0000000         0
  *CONTROL_CONTACT
   0.0000000 0.0000000         0         0         0         0         0
           0         0         0         0 0.0000000         0         0         0
  *CONTROL_OUTPUT
           0         0         0         0 0.0000000         0         0
  *CONTROL_ENERGY
           1         2         1         1
  *CONTROL_SPH                           carte de control
           0
  *DATABASE_GLSTAT
   4.00000-4 
  *DATABASE_MATSUM
   4.00000-4 
  *DATABASE_BINARY_D3PLOT
   2.00000-3                   0
  *DATABASE_EXTENT_BINARY
           0         0         0         0         0         0         0         0
           0         0         0         0         0         0
  *CONTROL_CPU
   0.0000000
  *MAT_PIECEWISE_LINEAR_PLASTICITY
           1 8.90000-3 1.00000+5 0.3300000 180.00000 0.0000000 0.0000000 0.0000000
   0.0000000 0.0000000         0         0
   0.0000000 0.4982001 0.9982001 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
   180.00000 250.00000 280.00000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
  *MAT_ELASTIC_PLASTIC_HYDRO
           2 8.90000-3 37593.000 180.00000 0.0000000 0.0000000 0.0000000
   0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
   0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
   0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
   0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
  *EOS_GRUNEISEN
           2 3958.0000 1.4970001 0.0000000 0.0000000 2.0000000 0.0000000 0.0000000
   0.0000000
  *SECTION_SOLID
           1         0
  *SECTION_SPH
           2 1.2000000
  *PART
  material type # 24 (elastic-plastic with failure)                               
           1         1         1         0         0         0         0         0
  *PART
  material type #10  (elastic-plastic-hydrodynamic)                               
           2         2         2         2         0         0         0         0
  *NODE
  $
  *ELEMENT_SOLID
         1       1       1       2       4       3       5       6       8       7
  *RIGIDWALL_PLANAR                                                               
           0         0         1
   0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 1.0000000 0.0000000
  *DEFINE_BOX
           1-4.0000000 4.0000000-4.0000000 4.0000000 0.0000000 21.000000
  *INITIAL_VELOCITY
           1         0         1
   0.0000000 0.0000000 -100.0000 0.0000000 0.0000000 0.0000000 0.0000000
  *SET_NODE_LIST_GENERATE
           1
           9      2008
  *ELEMENT_SPH
  $
  *END

Figures

image01.gif

image02.gif

Animated Result

Result

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