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Getting Started with Data Fitting

What is Autodesk Moldflow Plastics Labs Data Fitting?

Autodesk Moldflow Plastics Labs data fitting enables you to convert raw material data into a format suitable for use in Autodesk Moldflow simulation software.

You can:

  • Input General Information and Processing Conditions about a material
  • Input Filler Data.
  • Input and plot Specific Heat and Thermal Conductivity tabular data

For thermoplastics:

  • Input and plot raw Viscosity data to be fitted to the Cross-WLF model
  • Input and plot raw PVT data to be fitted to the 2-Domain Tait model, or automatically substitute generic PVT data
  • Input raw Mechanical Properties or automatically substitute generic mechanical data
  • Optionally, input Melt Flow Rate, Stress-Strain Tension, Crystallization, Optical, Weldline, Microcellular gas, and Powdered material data
  • Generate Data Completeness Indicators and view their expiration date

For thermosets:

  • Input and plot raw Cure Kinetics data to be fitted to the Kamal model
  • Input and plot raw Reactive Viscosity data to be fitted to the Reactive Viscosity model
  • Optionally, input and plot raw uncured and cured PVT data to be fitted to the 2-Domain Tait model
  • Optionally, input Mechanical Properties data

More generally:

  • Automatically fit and manually adjust the resulting models

  • Export the data in *.21000.udb (thermoplastics) or *.20030.udb (thermosets) format for direct use in all versions of Autodesk Moldflow Insight since v5.0 and Autodesk Moldflow Adviser since v7.0.

  • Resultant fitted udb files can be sent to datafittingMoldflow@autodesk.com to include it in future releases of the Autodesk Moldflow materials database.

The Autodesk Moldflow Plastics Labs/Data Fitting application includes measures to identify and rectify issues with the raw measured data, so that it can be converted for use in Autodesk Moldflow simulation software. The application also provides a mechanism for converting raw material data as soon as it is available, eliminating delays caused by manual conversion methods and allowing Autodesk users to gain access to the data as soon as possible.

Getting familiar with the Data Fitting user interface

After opening an existing document (File->Open) or creating a new thermoplastic document (File->New) or a new themoset document (File->New Thermoset), a home screen is presented, offering a grid of buttons to interact with the document. The layout is designed to flow from top to bottom, and left to right; from input to output.

Each dialog includes a set of Apply, OK and Cancel buttons, which allow the user to either accept or reject their changes, and return to the home screen.

Essential Input Data section

Dialogs in which you must sequentially input mandatory material data required to create a valid UDB file. The sequence is enforced for a new document, to ensure that dependencies on data entered in previous dialogs are satisfied.

Optional Input Data section

Dialogs for optional additional data that may apply to some materials.

Process Data section

Document control buttons for checking input data, computing results, checking result data, deleting results, and finally exporting the result data to a UDB file.

Result Data section

Dialogs for viewing and/or modifying each of the result models, as well as the (read-only) Data Completeness indicators.

For a minimal instructive workflow to begin using the application, see Quick Start Guide.

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