Material Properties

Material Properties

  1. All Categories
  2. Structures - Material Properties
  3. How to pick the value of incompressibility parameter, D, when we want to add small amount of compressibility to the hyperelastic material?

How to pick the value of incompressibility parameter, D, when we want to add small amount of compressibility to the hyperelastic material?

Tagged: 19, hyperelasticity, materials, mechanical, structural-mechanics
    • March 17, 2023 at 9:00 am
      FAQFAQ
      Participant

      The incompressibility parameter, D, is nothing but 2/(initial bulk modulus). If you wish to add small amount of incompressibility (large but finite bulk modulus), then adding a small value for D will do it. Note that the parameter D has the units of 1/stress. So, if the initial shear modulus of the material is, say 2.5 MPa, then a value of 1e-2 MPa^-1 would be a reasonable value for D.

Featured Articles

Introducing Ansys Electronics Desktop on Ansys Cloud

The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...

How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)

This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...

Introducing the GEKO Turbulence Model in Ansys Fluent

The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...

Postprocessing on Ansys EnSight

This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.

© 2025 Copyright ANSYS, Inc. All rights reserved.