This task explains how to configure Abaqus Analysis settings.

1. Start CATIA V5.

2. Select Tools>Options from the menu bar.

   The Options dialog box appears.

3. Select the Analysis & Simulation category in the tree to the left, then click the Nonlinear and Thermal tab.

   The complete list of options is as follows:

   • Computation and Results Data: This option provides the path to the directory where Abaqus analysis jobs are actually run.

   • Temporary Data: This option provides the path to the scratch directory used for storing temporary data.

   • User Subroutine Library: This option provides the path to the directory containing the compiled .dll file for all user subroutines that are referred to by the model.

   • Storage Manager: This option provides the path to the external editor used for viewing job text files from the Storage Manager (for example, xemacs or notepad).

   • Solver Controls: The term overconstraint refers to multiple constraints acting on the same degree of freedom. By default, overconstraint checks are suppressed in each analysis step. If you toggle on Enable solver overconstraint checks, Abaqus will attempt to remove as many redundant constraints (constraints that are consistent with each other) as possible. When it is not possible to remove a redundant constraint or when an inconsistent overconstraint is detected, a detailed message is issued identifying the constraints contributing to the overconstraint.

   • Input File Writing: These options specify the format of the input file that is generated when you submit a job to Abaqus.

     By default, Nonlinear Structural Analysis and Thermal Analysis combine all of the parts in the model into a single part and writes an input file with an assembly containing this single part. You can use this default behavior in conjunction with tools in the Advanced Meshing Tools workbench to merge coincident or adjacent nodes into a single node. Alternatively, you can toggle on As an assembly of separate parts to generate the input file as an assembly of separate part instances, where unconstrained nodes from each part instance are free to move relative to nodes from other part instances. When Nonlinear Structural Analysis and Thermal Analysis write the input file, coincident nodes that are shared between separate part instances are treated as separate nodes that can move independently of each other. See Specifying the Input File Format for more information.

     Nonlinear Structural Analysis and Thermal Analysis use the CATIA sequential numbering scheme for all nodes and elements. However, third-party applications may allow you to replace the CATIA sequence numbers with “user numbers” for nodes and elements. By default, Nonlinear Structural Analysis and Thermal Analysis replace the sequence numbers if user numbers are available. You can toggle on Use only sequence number of nodes and elements to prevent the sequence numbers from being replaced.

     Note:  If user numbers are not applied to the entire model, there is a potential for conflicting node and element numbers. Selecting this option prevents any numbering conflicts from affecting the analysis.

   • Abaqus Solver Units: This option specifies the units used for length, mass, time, and temperature when you write an Abaqus input file or import an Abaqus output database. You should use the Abaqus Solver Units option if you sometimes perform pre- and postprocessing tasks on the Abaqus input file or Abaqus output database, respectively, outside of Nonlinear Structural Analysis and Thermal Analysis.

     CATIA V5 always saves model data internally in the International System (SI) of units (meters, kilograms, seconds, and degrees Kelvin), regardless of the units you choose to display. (To set the displayed units, select the Units tab from the Parameters & Measure category of options.) By default, the Abaqus Solver Units option is also set to SI units. If you change the solver units, Nonlinear Structural Analysis and Thermal Analysis convert the model data into the selected units when you submit an analysis. When you import an Abaqus output database file, Nonlinear Structural Analysis and Thermal Analysis convert the output database from the current solver units back into SI units for storage and displays your results using the selected CATIA units.

   The Analysis & Simulation settings are saved in the following file:

   ABQAFCWBGeneralSettings.CATSettings
   

   This file is typically located in C:\Documents and Settings\username\Application Data\DassaultSystemes\CATSettings.

   Tip: You can also set several of the analysis options—Computation and Results Data, Temporary Data, User Subroutine Library, and Write Input File as:—for a particular job when you create it (see Specifying File Storage Directories).

4. Click OK to save your settings and to close the Options dialog box.