Force Transducer — Welcome to LS-DYNA Examples

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This is an example for usage of *CONTACT_AUTOMATIC_SINGLE_SURFACE and *CONTACT_FORCE_TRANSDUCER_PENALTY keywords.

Keywords

*CONTACT_AUTOMATIC_SINGLE_SURFACE
*CONTACT_FORCE_TRANSDUCER_PENALTY
*CONTROL_CONTACT
*CONTROL_CPU
*CONTROL_DAMPING
*CONTROL_ENERGY
*CONTROL_OUTPUT
*CONTROL_SHELL
*CONTROL_STRUCTURED
*CONTROL_TERMINATION
*CONTROL_TIMESTEP
*DATABASE_BINARY_D3PLOT
*DATABASE_BINARY_D3THDT
*DATABASE_BINARY_INTFOR
*DATABASE_EXTENT_BINARY
*DATABASE_GLSTAT
*DATABASE_MATSUM
*DATABASE_NCFORC
*DATABASE_RCFORC
*DATABASE_SLEOUT
*ELEMENT_SHELL
*END
*INITIAL_VELOCITY_NODE
*INTERFACE_SPRINGBACK_DYNA3D
*KEYWORD
*MAT_ELASTIC
*MAT_RIGID
*NODE
*PART
*SECTION_SHELL
*SET_PART
*SET_PART_LIST
*SET_SEGMENT
*TITLE

Reduced Input

  *KEYWORD
  *DATABASE_GLSTAT
   1.00000-6
  *database_matsum
  1.e-6
  *database_sleout
  1e-6
  *interface_springback_dyna3d
  10
  *set_part_list
  10
  1,2,3
  *control_structured
  *database_ncforc
  1e-5
  *database_rcforc
  1e-5
  *database_binary_intfor
  1e-5
  $  don't forget s=d3intf on execution line for binary interface file
  $
  $  The following force transducer does not affect the analysis; it's purpose
  $  is to collect forces generated by other contact types (see RCFORC file).
  $
  *contact_force_transducer_penalty
  $ by part id
  $         1         0         3         0         0         0         1         0
  $ by segment set
          10         0         0         0         0         0         1         0
   0.0000000 0.0000000 0.0000000 0.0000000 0.0000000         0 0.0000000 0.0000000
   0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
  *set_segment
  10
  1,3,4,2
  $
  *CONTACT_AUTOMATIC_SINGLE_SURFACE                
           1         0         2         0         0         0         1         0
   0.0000000 0.0000000 0.0000000 0.0000000 0.0000000         0 0.0000000 0.0000000
   0.5000000 0.5000000 0.0000000 0.0000000 0.0000000 0.0000000
  *SET_PART
           1
           1         2         3
  *TITLE
  transducer.k typ13-3shls                                                             
  *CONTROL_TERMINATION
   1.99000-3         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         0         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
  *DATABASE_BINARY_D3PLOT
   1.00000-5                   0
  *DATABASE_BINARY_D3THDT
   1.0000000
  *DATABASE_EXTENT_BINARY
           0         0         0         0         0         0         0         0
           0         0         0         0         0         0
  *CONTROL_CPU
   0.0000000
  *mat_rigid
           1 7.33000-4 3.00000+7 0.3300000
  
  
  $*MAT_ELASTIC
  $         1 7.33000-4 3.00000+7 0.3300000
  *MAT_ELASTIC
           2 7.33000-4 3.00000+7 0.3300000
  *MAT_ELASTIC
           3 7.33000-4 3.00000+7 0.3300000
  *SECTION_SHELL
           1         0 0.0000000 0.0000000 0.0000000 0.0000000
   0.2000000 0.2000000 0.2000000 0.2000000 0.0000000
  *SECTION_SHELL
           2         0 0.0000000 0.0000000 0.0000000 0.0000000
   0.2000000 0.2000000 0.2000000 0.2000000 0.0000000
  *SECTION_SHELL
           3         0 0.0000000 0.0000000 0.0000000 0.0000000
   0.2000000 0.2000000 0.2000000 0.2000000 0.0000000
  *PART
   
           1         1         1         0         0         0         0         0
  *PART
   
           2         2         2         0         0         0         0         0
  *PART
   
           3         3         3         0         0         0         0         0
  *NODE
  $
  *ELEMENT_SHELL
  $
  *INITIAL_VELOCITY_NODE
  $
  *END

Figures

image01.gif

image02.gif

Animated Result

Result

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