# Rigid body definition

 A rigid body: can be two-dimensional planar, axisymmetric, or three-dimensional; is associated with a node, called the rigid body reference node, whose motion governs the motion of the entire rigid body; can consist of nodes, elements, and surfaces; can act as a method of constraint; can be used with connector elements in multibody dynamic simulations; can be used to prescribe the motion of a rigid surface for contact modeling; can be computationally efficient and, in Abaqus/Explicit, does not affect the global time increment; and can have temperature gradients or be isothermal in a fully coupled temperature-displacement analysis where thermal interactions are considered. The following topics are discussed:
 Related Topics About surfaces Element-based surface definition Analytical rigid surface definition In Other Guides Rigid elements *RIGID BODY Defining rigid body constraints

ProductsAbaqus/StandardAbaqus/ExplicitAbaqus/CAE