MPC-based contact utilizes multi-point constraints (MPCs) to define a
tied contact between the main and secondary 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 main and secondary surfaces. The
six rigid body modes may not be proper in such cases.
MPC-based TIE contact is currently not supported with
MODCHG.
MPC-based TIE contact is currently supported for Linear
Static, Linear Transient, Nonlinear Static, and Nonlinear Transient Analysis. It
is supported for both Small and Large Displacement Nonlinear Analysis.
