Simcenter 3D API: Creep Curve Fitting App

Siemens Theorist Siemens Theorist
Siemens Theorist

 

Utility Name

Creep Curve Fit App

 

Summary

Computation from test data of the Bailey-Norton creep law coefficients

 

Detailed Description

This App allows by means of a dedicated UI the user to:

  • select one test data file,
  • run the curve fitting tool in order to compute the 3 Bailey-Norton creep law coefficients,
  • plot the resulted curves against the test data points for quality checks,
  • update the material with the computed coefficients.

 

General Information

Compatible versions

Source code

Keywords

Simcenter 3D 2019.1

dll

Bailey-Norton, Creep law

 

 

Known Issues

None

Test Case

  1. Launch Simcenter 3D
  2. Open a .fem file
  3. Type Ctrl-u in order to browse and select curve_fit_app.dll in NX/application
  4. Enter the parameters (.csv test data file, …)

 

 

Creep1.png

 

<-- Test data file (.csv)

<-- Format of test quantities

<-- Possibility to subtract the elastic strain

 

 

<-- Model coefficients initial guess

 

 

 

 

 

<-- Possibility to update the Nastran material

 

 

 

 

<-- Output file & folder selection

 

 

 

 

 

    5. Click on Compute Coefficients

    6. Model coefficients as a function of Temperature are shown in Information window

 

Creep2.png

 

    7. Test data & resulting curve are displayed in Graph window

 

Creep3.png

 

Author

Easwaran Viswanathan

3D Customization team for updates

 

@OliverZ