Full restart example: Bolt pre-tensioning followed by prescribed displacement

The same bolted joint as in Section 12.1.2 is studied, but in this case the pre-tensioning (pretens001.key) is followed by a prescribed transverse displacement of 50 mm (full_restart.key). The stress result is shown in Figure 56, and the moment vs. tip displacement curve is shown in Figure 55.

Example Files: full_restart
NOTE! All examples are included in the Complete Guideline

Main Input

*KEYWORD 
*STRESS_INITIALIZATION
$===============================================================================
$ Control and output cards
$===============================================================================
*INCLUDE
../INCLUDE_FILES/control_cards_nonlin.key
*INCLUDE
../INCLUDE_FILES/database_cards_static.key
*CONTROL_IMPLICIT_GENERAL
$   IMFLAG       DT0    IMFORM      NSBS       IGS     CNSTN      FORM
         1      0.10         2         0         1         0         0
*CONTROL_TERMINATION
$   ENDTIM    ENDCYC     DTMIN    ENDENG    ENDMAS
        2.
*DEFINE_CURVE_TITLE
Time stepping curve
       700
                  0.                0.10
                  1.                 0.2
                  2.                 0.2
$===============================================================================
$ Pipes geo
$===============================================================================
*INCLUDE
flange005.key
$===============================================================================
$ Contacts
$===============================================================================
*SET_PART_LIST_TITLE
FLANGES
      1100
  70770912  70770914
*SET_PART_ADD_TITLE
All for contact
      1119
       100      1100
*CONTACT_AUTOMATIC_SINGLE_SURFACE_MORTAR_ID
1001      Bolts_and_flanges
      1119                   2
      0.15
        5.


         5
$===============================================================================
$ Loading and boundary conditions
$===============================================================================
*BOUNDARY_SPC_SET
       112                   1         1         1
*DEFINE_CURVE_TITLE
Bolt pre-tension 600 MPa
      1002
0.,0.
1.,.6
$===============================================================================
*DEFINE_CURVE_TITLE
X-loading
      1001
0.,0.
1.,0.
2.,10.
3.,10.
*DEFINE_CURVE_TITLE
Y-loading
      1021
0.,0.
1.,0.
2.,0.
*DEFINE_CURVE_TITLE
Z-loading
      1031
0.,0.
1.,0.
2.,0.
*BOUNDARY_PRESCRIBED_MOTION_SET
$     nsid       dof       vad      lcid        sf
      1001         1         2      1001       5.0
$===============================================================================
$ Additional output - elout
$===============================================================================
*DATABASE_HISTORY_SOLID
     18554
*DATABASE_HISTORY_NODE_SET
      1001
*DATABASE_FORMAT
         0         1
*SET_PART_LIST_GENERATE
       666
         1  99999999
*INTERFACE_SPRINGBACK_LSDYNA
       666
*DATABASE_CROSS_SECTION_PLANE_ID
       100Lower_pipe_cross_section
      100289.99999479.29994E-8     -303.89.99999479.29994E-8     -302.       55.
        0.        0.        0.        0.        0.         0         0
*SET_PART_LIST_TITLE
Cross Section@_5
      1002
  70770914
$===============================================================================
$ Simulation title
$===============================================================================
*TITLE
150506-full restart example
*END