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MPC
13.22
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MPC: Define multi-point constraints.
This option is used to impose constraints between different degrees of freedom of the model.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Part, Part instance, Assembly
References:
•
“General multi-point constraints,” Section 28.2.2 of the ABAQUS Analysis User’s Manual
•
“MPC,” Section 1.1.13 of the ABA QUS User Subroutines Reference Manual
Optional parameters:
INPUT
Set this parameter equal to the name of the alternate input file containing the data lines for this
option. See “Input syntax rules,” Section 1.2.1 of the ABAQ US Analysis User’s Manual, for the
syntax of such file names. If this parameter is omitt ed, it is assumed that the data follow the key word
line.
MODE
This parameter applies only to ABAQUS/Standard analyses.
This parameter is used only if the USER pa rameter is included.
Set MODE=DOF (default) for user subroutine MPC to operate in a degre e of freedom mode.
Set MODE=NODE for user subroutine MPC to operate in a nodal mode.
USER
This parameter applies only to ABAQUS/Standard analyses.
Include this parameter to indicate that the constraint is defined in user subroutine MPC.
Data lines to define multi-point constraints:
First line:
1. MPC type from “General multi-point constraints,” Section 28.2.2 of the ABAQUS Analysis
User’s Manual, or, if the USER parameter is included, an integer key to be used in user
subroutine MPC to distinguish between different constraint types.
2. Node numbers or node sets involved in the constraint.
The first 15 nodes or node sets of an MPC must be entered on the first line. If the MPC contains more
than 15 nodes, enter 0 on the next line to indicate that it is a continuation line and then continue to enter
13.22–1
ABAQUS Version 6.1 Module:
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