-
For contact pairs Abaqus/Standard typically uses a pure main-secondary relationship for the contact constraints
by default (see About Contact Pairs in Abaqus/Standard); the nodes of the
secondary surface are constrained not to penetrate into the main surface. The
nodes of the main surface can, in principle, penetrate into the secondary
surface. Abaqus/Explicit includes this formulation but typically uses a balanced main-secondary
weighting by default (see Contact Formulations for Contact Pairs in Abaqus/Explicit).
-
The contact formulations in
Abaqus/Standard
and
Abaqus/Explicit
differ in many respects due to different convergence, performance, and
numerical requirements.
-
The constraint enforcement methods in
Abaqus/Standard
and
Abaqus/Explicit
differ in some respects. For example, both
Abaqus/Standard
and
Abaqus/Explicit
provide penalty constraint methods, but the default penalty stiffnesses differ.
-
Abaqus/Standard and Abaqus/Explicit both provide a small-sliding contact formulation (see Contact Formulations in Abaqus/Standard and Contact Formulations for Contact Pairs in Abaqus/Explicit). However, the
small-sliding contact formulation in Abaqus/Standard transfers the load to the main nodes according to the current position of the
secondary node. Abaqus/Explicit always transfers the load through the anchor point.
As a result of these differences, contact definitions specified in an
Abaqus/Standard
analysis cannot be imported into an
Abaqus/Explicit
analysis and vice versa (see
Transferring Results between Abaqus/Explicit and Abaqus/Standard).