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!CONTACTPAIR

Definition of contact surface pair used for contact analysis

1st Line

!CONTACT PAIR, NAME=<name> [,optional parameter]
Parameter
NAME Contact pair name (mandatory)
TYPE Type (omissible)
Parameter name Parameter value Contents
NAME <name> Contact pair name
TYPE NODE-SURF Slave surface is a node group
Master surface is a surface group (default)
SURF-SURF Both the slave and master surfaces are surface groups

2nd Line or later

(2nd Line or later) SLAVE_GRP, MASTER_GRP
(Hereinafter the same)
Parameter Name Attributions Contents
SLAVE_GRP C Slave surface node / surface group name
MASTER_GRP C Surface group name of the master surface

Note

  • When refining the mesh (REFINE) during analysis, always use TYPE=SURF-SURF.
  • Even when TYPE=SURF-SURF is used, the contact algorithm within FrontISTR is a point-to-surface algorithm.

Reference

  • When TYPE=SURF-SURF is used, FrontISTR internally generates a node group automatically from the slave surface group and converts the pair into a contact surface pair consisting of a node group and a surface group.
  • The name of the automatically generated node group is formed by prefixing the original slave surface group name with FSTR_S2N_.