MPC-based contact utilizes multi-point constraints (MPCs) to define a
tied contact between the master and slave surfaces.
It is activated using
CONTPRM,TIE,MPC and
TIE Bulk Data Entries. All TIE contacts in the
model are defined using the MPC-based method. This method uses Lagrange Multipliers and
is not applicable to CONTACT Bulk Data Entries of
TYPE=FREEZE. Figure 1.
Attention:
Results of an MPC-based TIE contact analysis may not be
accurate if there is a physical gap between the master and slave surfaces. The 6
Rigid Body modes may not be proper in such cases.
MPC-based TIE contact is only available in Small-Displacement
Analysis.
