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Edge

A corrugated plate strikes a flat plate from opposite directions. Download is available in the download section of this document.

Introduction

Introduction

This example has been taken from the 'LS-DYNA Examples Manual'. Example name: contact.edge.k

A brief description of the example.

*CONTACT_SINGLE_EDGE
Corrugated Sheet Contacts Edges
LS-DYNA Manual Section: *CONTACT_SINGLE_EDGE

Additional Sections:
*CONTACT_FORCE_TRANSDUCER_PENALTY

Example: Corrugated Sheet Contacts Edges

Filename: contact.edge.k

Description:
A corrugated plate strikes a flat plate from opposite directions.

Input:
The model consists of 135 elastic plastic Belytschko-Tsay shell elements.
The interaction of the two structures is to edge contact
(*C ONTACT_SINGLE_EDGE). A contact force transducer is defined to monitor the
forces of the contact in the ascii file rcforc. The nodes on the upper
corrugated plate have an initial velocity of 10 meters/second.

Results:
A contour plot of the effective-stress and a plot of the forces from the ascii
file rcforc illustrate that the plates are in contact.

Reference:
Stillman, D. W.

Keywords

Keywords

This example has been taken from the 'LS-DYNA Examples Manual'. Example name: contact.edge.k

The used Keywords in alphabetical order.

*CONTACT_FORCE_TRANSDUCER_PENALTY
*CONTACT_SINGLE_EDGE
*CONTROL_HOURGLASS
*CONTROL_TERMINATION
*DATABASE_BINARY_D3PLOT
*DATABASE_BINARY_D3THDT
*DATABASE_GLSTAT
*DATABASE_MATSUM
*DATABASE_RCFORC
*ELEMENT_SHELL
*END
*INITIAL_VELOCITY
*KEYWORD
*MAT_PLASTIC_KINEMATIC
*NODE
*PART
*SECTION_SHELL
*SET_NODE_LIST
*SET_PART_LIST
*SET_SEGMENT
*TITLE

Reduced Input

Reduced Input

This example has been taken from the 'LS-DYNA Examples Manual'. Example name: contact.edge.k

*Node and *Element Cards are removed.

  *KEYWORD
  *TITLE
  Edge to Edge Contact with Force Transducer
  $
  $  LSTC Example
  $
  $  Last Modified: September 9, 1997
  $
  $  Units: kg, m, s, N, Pa, Joule
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $$$$  Control Ouput
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
  $
  *CONTROL_TERMINATION
  $   endtim    endcyc     dtmin    endneg    endmas
       0.050
  $
  *CONTROL_HOURGLASS
  $      ihq        qh
           4
  $
  *DATABASE_BINARY_D3PLOT
  $       dt      lcdt
       0.001
  $
  *DATABASE_BINARY_D3THDT
  $       dt      lcdt
   9.990E+02
  $
  *DATABASE_GLSTAT
  $       dt
       0.001
  $
  *DATABASE_MATSUM
  $       dt
       0.001
  $
  *DATABASE_RCFORC
  $       dt
       0.001
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $$$$  Define Contacts
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
  $
  $$$$$$$$$$  Type 22, single edge contact
  $
  *CONTACT_SINGLE_EDGE
  $     ssid      msid     sstyp     mstyp    sboxid    mboxid       spr       mpr
           1                   0         0
  $       fs        fd        dc        vc       vdc    penchk        bt        dt
  
  $      sfs       sfm       sst       mst      sfst      sfmt       fsf       vsf
  
  $
  *SET_SEGMENT
  $      sid
           1
  $       n1        n2        n3        n4
           1         2         0         0
           2         3         0         0
           3        13         0         0
          13        14         0         0
          14        21         0         0
          21        22         0         0
          22        29         0         0
          29        30         0         0
          30        37         0         0
          37        38         0         0
          38        45         0         0
          45        46         0         0
          46        53         0         0
          53        54         0         0
          54        61         0         0
          61        62         0         0
          69        70         0         0
          70        71         0         0
          71        72         0         0
          72        73         0         0
          73        74         0         0
          74        75         0         0
          75        76         0         0
          76        77         0         0
          77        78         0         0
          78        79         0         0
          79        80         0         0
          80        81         0         0
          81        82         0         0
         111       112         0         0
         112       113         0         0
         113       114         0         0
         114       115         0         0
         115       116         0         0
         116       117         0         0
         117       118         0         0
         118       119         0         0
         119       120         0         0
         120       121         0         0
         121       122         0         0
         122       123         0         0
         123       124         0         0
         125       126         0         0
         126       127         0         0
         127       137         0         0
         137       138         0         0
         138       145         0         0
         145       146         0         0
         146       153         0         0
         153       154         0         0
         154       161         0         0
         161       162         0         0
         162       169         0         0
         169       170         0         0
         170       177         0         0
         177       178         0         0
         178       185         0         0
         185       186         0         0
  $
  $
  $$$$  Force transducer defined to calculate contact forces on part 1.
  $
  *CONTACT_FORCE_TRANSDUCER_PENALTY 
  $...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
  $     ssid      msid     sstyp     mstyp
           5                   2
  
   
  $
  *SET_PART_LIST
  $...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
           5
           1
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $$$$  Initial Conditions
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $$$$  Nodes of the part 1 (node set id = 2) are given an initial velocity
  $$$$  in the y-direction of 10 m/s.
  $
  *INITIAL_VELOCITY
  $     nsid    nsidex     boxid
           2
  $       vx        vy        vz       vxr       vyr       vzy
         0.0      10.0       0.0       0.0       0.0       0.0
  $
  *SET_NODE_LIST
  $      sid
           2
  $     nid1      nid2      nid3      nid4      nid5      nid6      nid7      nid8
           1         2         3         4         5         6         7         8
           9        10        11        12        13        14        15        16
          17        18        19        20        21        22        23        24
          25        26        27        28        29        30        31        32
          33        34        35        36        37        38        39        40
          41        42        43        44        45        46        47        48
          49        50        51        52        53        54        55        56
          57        58        59        60        61        62        63        64
          65        66        67        68
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $$$$  Define Parts and Materials
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $...>....1....>....2....>....3....>....4....>....5....>....6....>....7....>....8
  $
  *PART
  $      pid       sid       mid     eosid      hgid    adpopt
  plate-1
           1         1         1
  plate-2
           2         1         1
  plate-3
           3         1         1
  $
  $
  *MAT_PLASTIC_KINEMATIC
  $      mid        ro         e        pr      sigy      etan      beta
           1   7.85e+3 200.0e+09     0.300   2.0e+09
  $      src       srp        fs
         0.0       0.0       0.0
  $
  $
  *SECTION_SHELL
  $      sid    elform      shrf       nip     propt   qr/irid     icomp
           1
  $       t1        t2        t3        t4      nloc
   2.000E-03 2.000E-03 2.000E-03 2.000E-03
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $$$$  Define Nodes and Elements
  $
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $
  $
  *END

Figures

Figures

This example has been taken from the 'LS-DYNA Examples Manual'. Example name: contact.edge.k

image01.gif

image02.gif

Animated Result

Animated Result

This example has been taken from the 'LS-DYNA Examples Manual'. Example name: contact.edge.k

Result

Download

Download

This example has been taken from the 'LS-DYNA Examples Manual'. Example name: contact.edge.k