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Contact IV

This series of examples shows how to scale the penalty stiffness in contact problems. The influence of this scaling on the solution is shown by the example of a soft ring in contact with a rigid wall. In this first example the penalty factor obviously is to low. Download is available in the download section of this document.

Keywords

Keywords

The used Keywords in alphabetical order.

*CONTACT_ONE_WAY_SURFACE_TO_SURFACE
*CONTROL_CPU
*CONTROL_ENERGY
*CONTROL_TERMINATION
*CONTROL_TIMESTEP
*DATABASE_BINARY_D3PLOT
*DATABASE_BINARY_D3THDT
*DATABASE_GLSTAT
*DATABASE_MATSUM
*DATABASE_NODOUT
*DATABASE_RCFORC
*ELEMENT_SHELL
*END
*INITIAL_VELOCITY_GENERATION
*KEYWORD
*MAT_ELASTIC
*NODE
*PART
*SECTION_SHELL
*TITLE

Reduced Input

Reduced Input

*Node and *Element Cards are removed.

  *KEYWORD
  *TITLE
  Soft Ring Impacting Rigid Wall (SF=0.01)
  *CONTROL_TERMINATION
   0.0300000         0 0.0000000         0 0.0000000
  *CONTROL_TIMESTEP
   0.0000000 0.0000000         0 0.0000000 0.0000000         0         0         0
  *CONTROL_ENERGY
           1         2         1         1
  *DATABASE_BINARY_D3PLOT
   5.00000-4                   0
  *DATABASE_BINARY_D3THDT
   1.00000-4
  *DATABASE_NODOUT
   1.00000-4
  *DATABASE_GLSTAT
   1.00000-4
  *DATABASE_MATSUM
   1.00000-4
  *DATABASE_RCFORC
   1.00000-4
  *CONTROL_CPU
   0.0000000
  *MAT_ELASTIC
           1 7.85000-8 100.00000 0.0000000
  *MAT_ELASTIC
           2 7.85000-8 100.00000 0.0000000
  *SECTION_SHELL
           1         0 0.0000000 3.0000000 0.0000000 0.0000000
   1.0000000 1.0000000 1.0000000 1.0000000 0.0000000
  *SECTION_SHELL
           2         0 0.0000000 3.0000000 0.0000000 0.0000000
   1.0000000 1.0000000 1.0000000 1.0000000 0.0000000
  *PART
  material type # 1  (elastic)                                                    
           1         1         1         0         0         0         0         0
  *PART
  material type # 1  (elastic)                                                    
           2         2         2         0         0         0         0         0
  *NODE
  $
  *ELEMENT_SHELL
  $
  *INITIAL_VELOCITY_GENERATION
  $       ID      STYP     OMEGA        VX        VY        VZ
           1         2       0.0    2000.0   -1000.0       0.0
  $       XC        YC        ZC        NX        NY        NZ     PHASE
         0.0       0.0       0.0       0.0       0.0       0.0         0
  $ INTERFACE NAME: 1          $$$
  *CONTACT_ONE_WAY_SURFACE_TO_SURFACE              
           1         2         3         3         0         0         0         0
         0.0       0.0       0.0       0.0       0.0         0       0.0       0.0
  $      SFS       SFM       SST       MST      SFST      SFMT       FSF       VSF
        0.01      0.01       0.0       0.0       0.0       0.0       0.0       0.0
  *END

Figures

Figures

image01.gif

image02.gif

Animated Result

Animated Result

Result

Download

Download