Expand IntroductionIntroduction
Expand AdministrationAdministration
Expand User InterfaceUser Interface
Expand SolidWorks FundamentalsSolidWorks Fundamentals
Expand Moving from 2D to 3DMoving from 2D to 3D
Expand AssembliesAssemblies
Expand CircuitWorksCircuitWorks
Expand ConfigurationsConfigurations
Expand SolidWorks CostingSolidWorks Costing
Expand Design CheckerDesign Checker
Expand Design Studies in SolidWorksDesign Studies in SolidWorks
Expand Detailing and DrawingsDetailing and Drawings
Expand DFMXpressDFMXpress
Expand DriveWorksXpressDriveWorksXpress
Expand FloXpressFloXpress
Expand Import and ExportImport and Export
Expand Model DisplayModel Display
Expand Mold DesignMold Design
Expand Motion StudiesMotion Studies
Expand Parts and FeaturesParts and Features
Expand RoutingRouting
Expand Sheet MetalSheet Metal
Collapse SimulationSimulation
Welcome to SolidWorks Simulation Help
Accessing and Using Help
Legal Notices
SolidWorks Simulation Reference
Expand SolidWorks Simulation FundamentalsSolidWorks Simulation Fundamentals
Expand Analysis BackgroundAnalysis Background
Expand Simulation OptionsSimulation Options
Expand Simulation StudiesSimulation Studies
Expand Submodeling StudiesSubmodeling Studies
Expand Design StudiesDesign Studies
Expand Workflow for Performing 2D SimplificationWorkflow for Performing 2D Simplification
Expand Composite ShellsComposite Shells
Expand Loads and RestraintsLoads and Restraints
Expand MeshingMeshing
Expand Contact AnalysisContact Analysis
Collapse Simulation MaterialsSimulation Materials
Material Properties in Simulation
Applying a Material
Removing a Material
Expand Defining Stress-Strain CurvesDefining Stress-Strain Curves
Defining Temperature-Dependent Material Properties
Creating a Custom Material
Creating a Material Library
Managing Favorite Materials
Using Drag and Drop to Define Materials
Expand Applying Material from the SolidWorks Materials Web PortalApplying Material from the SolidWorks Materials Web Portal
Expand Material Dialog BoxMaterial Dialog Box
Collapse Material ModelsMaterial Models
Expand Elasticity ModelsElasticity Models
Expand Plasticity ModelsPlasticity Models
Collapse Hyperelasticity ModelsHyperelasticity Models
Mooney-Rivlin Hyperelastic Model
Hyperelastic Ogden Model
Hyperelastic Blatz-Ko Model
Using Test Data for Mooney and Ogden Material Models
Recommendations for Hyperelastic Materials
Viscoelastic Model
Creep Model
Expand Nitinol Material ModelNitinol Material Model
Expand ParametersParameters
Expand Analysis Library FeaturesAnalysis Library Features
Expand Viewing Analysis ResultsViewing Analysis Results
Expand Study ReportsStudy Reports
Expand Factor of Safety CheckFactor of Safety Check
Expand SimulationXpressSimulationXpress
Expand SketchingSketching
Expand Sustainability ProductsSustainability Products
Expand SolidWorks UtilitiesSolidWorks Utilities
Expand TolerancingTolerancing
Expand TolAnalystTolAnalyst
Expand ToolboxToolbox
Expand WeldmentsWeldments
Expand Workgroup PDMWorkgroup PDM
Expand TroubleshootingTroubleshooting
Hide Table of Contents

Using Test Data for Mooney and Ogden Material Models

When defining Mooney Rivlin and Ogden hyper elastic models for nonlinear studies, you have two options:
  • Define constants directly in the Properties tab of the Material dialog.
  • Provide test data for the program to evaluate the constants internally.

Defining Hyperelastic Material Using Test Data

You can provide test data to define Mooney Rivlin and Ogden hyperelastic material properties.

To define the material using test data:

  1. Create a nonlinear study.
  2. When defining a hyper elastic material, click the Properties tab in the Material dialog.
  3. In the Select material source, click Custom defined.
  4. From Model type, select HyperElastic - Mooney Rivlin or HyperElastic - Ogden.
  5. Click Use curve data to compute material constants.

    The Tables and Curves tab is activated.

  6. From the Type menu, select Simple Tension, Planar Tension or Pure Shear, or Biaxial Tension depending on the data available.
  7. In the Table data, select the units and define the curve manually or click File to import the curve from a .dat file.

    If you have more than one test data file, repeat steps 6 and 7. You can define up to 3 curves (for Simple tension, Planar tension or pure shear, and Biaxial tension). Each curve can contain up to 200 data points. The data points of the curve must represent the stretch-ratio (deformed length / undeformed length) versus nominal stress, also known as engineering stress (force divided by the initial area).

  8. Click OK.

    The material constants are saved in a text file with the extension .log in the active result's folder for the study.

    The solver calculates the material constants as follows:

    1. Performs a curve-fitting to get the material constants.
      For Hyperelastic – Ogden material model, Simulation computes the four power material coefficients from these default ranges:
      Power Coefficients

      (Ogden material model)

      Default range (Min - Max)
      First 1.0 to 2.0
      Second 4.5 to 5.5
      Third -2.5 to -1.5
      Fourth 17.5 to 18.5
    2. Based on the calculated material constants, the strain energy density function and the stress function (derived from the energy density function) are defined.
    3. Back-calculates the stress, so called theoretical stress, from the user-defined strain.
    4. Calculates the stress error defined by the differences between the user-input and theoretical values.

Defining Mooney-Rivlin and Ogden Material Constants

To define the Mooney-Rivlin and Ogden constants directly:

  1. Create a nonlinear study.
  2. When defining a hyper elastic material, click the Properties tab in the Material dialog.
  3. In the Select material source, click Custom defined.
  4. From Model type, select HyperElastic - Mooney Rivlin or HyperElastic - Ogden.
  5. Set the units and number of constants and define the relevant constants and coefficients directly in the table based on the selected model.
  6. Click OK.

Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   Using Test Data for Mooney and Ogden Material Models
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: SOLIDWORKS 2014 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.