Advection A — Welcome to LS-DYNA Examples

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This is a Lagrangian model of a bar that is plastically deformed at one end. To generate plastic deformation *INITIAL_STRESS_SOLID command is used. Input deck A is just a preparation for decks B and C, with which you can study how well the advection schemes preserve the shapes of the history variable fields.

Keywords

*BOUNDARY_PRESCRIBED_MOTION_SET
*CONTROL_TERMINATION
*CONTROL_TIMESTEP
*DATABASE_BINARY_D3PLOT
*DEFINE_CURVE
*ELEMENT_SOLID
*END
*INITIAL_STRESS_SOLID
*KEYWORD
*MAT_PLASTIC_KINEMATIC
*NODE
*PART
*SECTION_SOLID
*SET_NODE_LIST_GENERATE

Reduced Input

  *KEYWORD
  *CONTROL_TERMINATION
   0.05
  *CONTROL_TIMESTEP
   0.0, 0.8
  *BOUNDARY_PRESCRIBED_MOTION_SET
   1, 1, 0, 1, 1.0 
  *SET_NODE_LIST_GENERATE
   1
   1, 1204 
  *DEFINE_CURVE
   1
   0.0, 100.0
   1.0, 100.0
  *DATABASE_BINARY_D3PLOT
   0.0001
  *MAT_PLASTIC_KINEMATIC
   1, 10000.0, 1.0E+10, 0.0, 1.0E+07
  
  *SECTION_SOLID
   1, 1
  *PART
   
   1, 1, 1
  *INITIAL_STRESS_SOLID
  $
  *NODE
  $
  *ELEMENT_SOLID
  $
  *END

Figures

Image01.gif

Image02.gif

Animated Result

Result

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