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Bar II

This example shows the impact of two equivalent bars made of plastic material against a planar rigid wall. The upper bar is calculated using Lagrangian discretization, the lower one is calculated using SPH method. Download is available in the download section of this document.

Keywords

Keywords

This example has been taken from the SPH class of Jean Luc Lacome. Example name: bar2.k

The used Keywords in alphabetical order.

*CONTROL_CONTACT
*CONTROL_CPU
*CONTROL_DAMPING
*CONTROL_ENERGY
*CONTROL_OUTPUT
*CONTROL_SHELL
*CONTROL_SPH
*CONTROL_TERMINATION
*CONTROL_TIMESTEP
*DATABASE_BINARY_D3PLOT
*DATABASE_EXTENT_BINARY
*DATABASE_GLSTAT
*DATABASE_MATSUM
*DATABASE_RCFORC
*DATABASE_RWFORC
*DATABASE_SLEOUT
*ELEMENT_SHELL
*ELEMENT_SPH
*END
*INITIAL_VELOCITY
*KEYWORD
*MAT_PLASTIC_KINEMATIC
*NODE
*PART
*RIGIDWALL_PLANAR
*SECTION_SHELL
*SECTION_SPH
*SET_NODE_LIST_GENERATE
*TITLE

Reduced Input

Reduced Input

This example has been taken from the SPH class of Jean Luc Lacome. Example name: bar2.k

*Node and *Element Cards are removed.

  *KEYWORD
  $* LS-DYNA Keyword file: LSTC LS-PRE/POST Ver 1.0(Beta)- 31OCT2002(1553)
  $* Total Number of Nodes  =     6081,Largest node ID  = 1004800
  $* Total Number of Shells =     1200,Largest Shell ID = 1200
  $* Total Number of Parts  =        2,Largest Part ID  = 101
  $* Total Number of Mats   =        2 Largest Mat ID   = 2
  *TITLE
  SPH / TP1 bis Impact barre 2D contre SW                                         
  *CONTROL_CONTACT
  $*  slsfac    rwpnal    islchk    shlthk    penopt    thkchg     orien    enmass
         0.0       0.0
  $*  usrstr    usrfrc     nsbcs    interm     xpene     ssthk      ecdt   tiedprj
           0         0         0         0       0.0
  *CONTROL_CPU
  $*  cputim    
         0.0
  *CONTROL_DAMPING
  $*  nrcyck     drtol    drfctr    drterm    tssfdr    irelal     edttl    idrflg
           0       0.0       0.0       0.0       0.0         0       0.0
  *CONTROL_ENERGY
  $*    hgen      rwen    slnten     rylen     
           2         2         2         1
  *CONTROL_OUTPUT
  $*   npopt    neecho    nrefup    iaccop     opifs    ipnint    ikedit    iflush
           0         0         0         0       0.0
  *CONTROL_SHELL
  $*  wrpang     esort     irnxx    istupd    theory       bwc     miter      proj
         0.0
  *CONTROL_SPH
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$   *CONTROL_SPH  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $*    ncbs     boxid        dt       dim    memory      form     start      maxv
           0         0       0.0         2         0         0       0.0       0.0
  *CONTROL_TERMINATION
  $*  endtim    endcyc     dtmin    endeng    endmas    
    0.035000         0       0.0       0.0       0.0
  *CONTROL_TIMESTEP
  $*  dtinit    tssfac      isdo    tslimt     dt2ms      lctm     erode     ms1st
         0.0  0.900000         0       0.0       0.0
  *DATABASE_GLSTAT
  4.0000e-04
  *DATABASE_MATSUM
  4.0000e-04
  *DATABASE_RCFORC
  4.0000e-04
  *DATABASE_RWFORC
  4.0000e-04
  *DATABASE_SLEOUT
  4.0000e-04
  *DATABASE_BINARY_D3PLOT
    0.004000
  *DATABASE_EXTENT_BINARY
           0         0         0         0         0         0         0         0
           0         0         0         0         0         0         0
  *ELEMENT_SHELL
  $
  *ELEMENT_SPH
  $
  *NODE
  $
  *INITIAL_VELOCITY
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $$$$     INITIAL CONDITION        
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
           0         0         0
   -50.00000       0.0       0.0       0.0       0.0       0.0
  *PART
  $* title                                                                        
                                                                                  
  $*     pid     secid       mid     eosid      hgid      grav    adpopt      tmid
           1         1         1
  *SECTION_SHELL
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ *LAGRANGIAN PART $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $*   secid    elform      shrf       nip     propt   qr/irid     icomp     setyp
           1        13       0.0         0         0       0.0
  $*      t1        t2        t3        t4      nloc     marea     
    1.000000  1.000000  1.000000  1.000000         0       0.0
  *MAT_PLASTIC_KINEMATIC
  $*     mid        ro         e        pr      sigy      etan      beta      
           1  0.0027106.8900e+04  0.330000  117.0000  6.800000  1.000000
  $*     src       srp        fs        vp        
         0.0       0.0       0.0       0.0
  *PART
  $* title                                                                        
                                                                                  
  $*     pid     secid       mid     eosid      hgid      grav    adpopt      tmid
         101       101         1
  *SECTION_SPH
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$  *SPH PART $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $*   secid      cslh      hmin      hmax    sphini     death     start     
         101  1.300000       0.0       0.0       0.0       0.0       0.0
  *MAT_PLASTIC_KINEMATIC
  $*     mid        ro         e        pr      sigy      etan      beta      
           2  0.0027106.8900e+04  0.330000  117.0000  6.800000  1.000000
  $*     src       srp        fs        vp        
         0.0       0.0       0.0       0.0
  *RIGIDWALL_PLANAR
           0         0         0       0.0
         0.0       0.0       0.0  1.000000       0.0       0.0       0.0       0.0
  *SET_NODE_LIST_GENERATE
         101       0.0       0.0       0.0       0.0
     1000001   1004800
  *END

Figures

Figures

This example has been taken from the SPH class of Jean Luc Lacome. Example name: bar2.k

image01.gif

image02.gif

Animated Result

Animated Result

This example has been taken from the SPH class of Jean Luc Lacome. Example name: bar2.k

Result

Download

Download

This example has been taken from the SPH class of Jean Luc Lacome. Example name: bar2.k