OptiStruct Model Checker



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The OptiStruct Model Checker utility allows you to check the quality of elements, properties, materials, and load steps in an OptiStruct model.

The GUI consists of four pull-down menus and a report window. The pull-down menus: File, Options, Run, and Help are described here:

File

Save Report

Allows you to select a file name and location to save the information in the report window to a text file.

 

Clear Report Window

Deletes everything from the report window.

 

Close

Exit and Close the Model Checker.

 

 

 

Options

Open Settings

Allows you to retrieve settings from a data file.

 

Save Settings

Allows you to save the current settings to a data file.

 

1D Element Quality Settings…

Allows you to alter settings for 1-D element checks.

The settings which can be altered are :

·    Minimum 1-D element length (default = 0.0)

·    Maximum 1-D element length (default = 20.0)

 

2D Element Quality Settings…

Allows you to alter settings for 2-D element checks.

The settings which can be altered are :

·     Minimum 2-D element length (default = 0.0)

·     Maximum 2-D element length (default = 20.0)

·     Minimum jacobian value (default = 0.7)

·     Maximum warpage (default = 5.0)

·     Maximum aspect ratio (default = 5.0)

·     Minimum quad angle (default = 45)

·     Maximum quad angle (default = 135)

·     Minimum tria angle (default = 20)

·     Maximum tria angle (default = 120)

 

3D Element Quality Settings…

Allows you to alter settings for 3-D element checks.

The settings which can be altered are :

·     Minimum 3-Delement length (default = 0.0)

·     Maximum 3-D element length (default = 20.0)

·     Minimum jacobian value (default = 0.7)

·     Maximum warpage (default = 5.0)

·     Maximum aspect ratio (default = 5.0)

·     Minimum quad angle (default = 45)

·     Maximum quad angle (default = 135)

·     Minimum tria angle (default = 20)

·     Maximum tria angle (default = 120)

·     Minimum tetra-collapse value (default = 0.5)

 

Property settings

Allows you to alter settings for property checks.

The settings which can be altered are:

·      Shell Zero Gauge Threshold (default = 0.001) - PSHELL or PCOMP components with a thickness less than this value fail this check.

·     Cross Section Zero Area Threshold (default = 0.001) - PBAR, PBEAM or PROD properties with a cross-section less than this value fail this check.

 

Material settings

Allows you to alter settings for material checks.

The settings which can be altered are :

·      Zero Density Threshold (Default = 1e-9) - All material densities must be greater than this value.

·      Zero Modulus Threshold (Default = 1e-3) - All modulii must be greater than this value.

·     Zero Poisson's Ratio Threshold (Default = 1e-3) - All Poisson's ratios must be greater than this value.

 

Model Checker Settings

Allows user to specify additional settings, can choose from the list:

·      Perform 1-D element checks (Default = yes)

·      Perform 2-D element checks (Default = yes)

·      Perform 3-D element checks (Default = yes)

·      Create sets for failed elements (Default = no)

·      Output % failed - element quality (Default = yes)

·      Output warning/error count for property checks (Default = no)

 

Settings to defaults (all)

Reset all settings to defaults.

 

 

 

Run

Select Tests

Allows user to check which tests to perform from the list:

·     Property checks

·     Material Checks

·     Element Checks

·     Loadstep Checks

·     Default (all)

 

Run Model Checker

Performs model checking and populates the report window with the results.

 

 

 

Help

Help

Provides operation instructions.

 

About

Provides information about version and developer.

See Also

Utility Menu

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