The Analytical Field toolset allows you to create and manage analytical fields. Analytical fields defined using mathematical expressions are referred to as expression fields. Currently, expression fields are the only type of analytical fields available in ABAQUS/CAE.
Select ToolsAnalytical Field
Create from the main menu bar in the Interaction module or the Load module to create a new analytical field; select Edit from the same menu to change an existing analytical field. Either command opens the expression field editor, which allows you to build expressions using mathematical functions to define the expression field.