# Boundary conditions in Abaqus/Standard and Abaqus/Explicit

 Boundary conditions: can be used to specify the values of all basic solution variables (displacements, rotations, warping amplitude, fluid pressures, pore pressures, temperatures, electrical potentials, normalized concentrations, acoustic pressures, or connector material flow) at nodes; can be given as “model” input data (within the initial step in Abaqus/CAE) to define zero-valued boundary conditions; can be given as “history” input data (within an analysis step) to add, modify, or remove zero-valued or nonzero boundary conditions; and can be defined by the user through subroutines DISP for Abaqus/Standard and VDISP for Abaqus/Explicit. Relative motions in connector elements can be prescribed similar to boundary conditions. See Connector actuation for more detailed information. The following topics are discussed:
 Related Topics About Prescribed Conditions In Other Guides Abaqus Model Definition VDISP DISP *BOUNDARY Using the boundary condition editors

ProductsAbaqus/StandardAbaqus/ExplicitAbaqus/CAE