Linear constraint equations

A linear multi-point constraint requires that a linear combination of nodal variables is equal to zero; that is, A1uiP+A2ujQ++ANukR=0, where uiP is a nodal variable at node P, degree of freedom i; and the An are coefficients that define the relative motion of the nodes.

In Abaqus/Explicit linear constraint equations can be used only to constrain mechanical degrees of freedom.

The following topics are discussed:

Related Topics
About Kinematic Constraints
In Other Guides
Defining equation constraints