Shell I — Welcome to LS-DYNA Examples

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File shells1.k shows a cantilever beam modeled with shell elements using five integration points through thickness and standard integration rule. See file shells2.k for user-defined integration rule.

Keywords

*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_BNDOUT
*DATABASE_EXTENT_BINARY
*DATABASE_HISTORY_SHELLS
*DEFINE_CURVE
*ELEMENT_SHELL
*END
*KEYWORD
*LOAD_NODE_POINT
*MAT_ELASTIC
*NODE
*PART
*SECTION_SHELL
*TITLE

Reduced Input

  *KEYWORD
  *control_structured
  *TITLE
  cantilever of shells (5  ip)                                            
  *CONTROL_TERMINATION
   0.9990000         0 0.0000000         0 0.0000000
  *CONTROL_TIMESTEP
   0.0000000 0.5000000         0 0.0000000 0.0000000         0    0
  *CONTROL_SHELL
   0.0000000         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
  *CONTROL_OUTPUT
           0         0         0         0 0.0000000         0         0
  *CONTROL_ENERGY
           0         0         0         0
  *DATABASE_BINARY_D3PLOT
   0.0100000                   0
  *DATABASE_BINARY_D3THDT
   0.0100000
  *database_history_shells
  1
  *DATABASE_EXTENT_BINARY
           0         0         5         0         0         0         0         0
           0         0
  *DATABASE_BNDOUT
   0.0100000
  *CONTROL_CPU
   0.0000000
  *MAT_ELASTIC
           1 7.00000-4 3.00000+5 0.3000000
  *SECTION_SHELL
           1         0 0.0000000 5.0000000 0.0000000 0.0000000
   0.5000000 0.5000000 0.5000000 0.5000000 0.0000000
  *PART
   
           1         1         1         0         0         0         0         0
  *NODE
  $
  *ELEMENT_SHELL
  $
  *DEFINE_CURVE
  $
  *LOAD_NODE_POINT
          11         2         2-0.5000000
          22         2         2-0.5000000
  *END

Figures

image01.gif

image02.gif

Animated Result

Result

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