# rubber

## Rubber In Engineering Group - 3 July 2020

If you are interested in elastomers and electric vehicles, check out this link to RIEG webinar on Elastomer use in Electric Vehicles.  There were 4 talks covering elastomer requirements for EVs, mounting system design for EVs, use of carbon black in EV applications, and EV mount integrity digital twin.  Enjoy!

## Difference between different material models for Hyperelastic material

Hello,

I am doing a project on rubber couplings and it is a bit difficult for me to decide between the material models availavle in Ansys 14. I am new to this field and want some assistance in choosing the material model. So, can anyone help me to theoroticall explain the difference between the different material models available in Ansys?

## Constitutive models for rubber

Hi.

I found a very useful explanation about hyperelasticity here: http://en.wikipedia.org/wiki/Hyperelastic_material#cite_note-Ogden-1

In the proof3, there is a good explanation (I can't found anything better than this one) of how we can express the Cauchy stresses in terms of the principal streches.

I am interested to incompressible material, so this is the equation:

## ECCMR 2013 - European Conference on Constitutive Models for Rubber - Abstract deadline: 1 Nov 2012

The 8th European Conference on Constitutive Models for Rubbers (ECCMR VIII) will be held at Tecnun/CEIT (San Sebastian, Spain) between June 25th and June 28th, 2013.

## Planar tension test = Pure shear test for rubber? Explanations

Hi,

I know what is this test and I know under certain conditions (low deformations and specimen's wide 10 times its lenght), a planar tension test is equal to pure shear test.

But I don't know why if we are doing a tension test we have pure shear.

Let me explain:

^ 1-Axis
|
-------------
|           |    ---> 2-Axis
-------------

## Viscoelastic properties of pre- and post-cure cellular rubbers using rheometer

Hi All,

I would like to know if anyone has had the opportunity to investigate cellular rubbers rheology. I am thinking of characterizing the viscoelastic properties of cellular rubber during cure and after cure in the rheometer, using ASTM D6601. What I am expecting is a distorted cellular structure due to very constrained foam expansion during the blowing agent's decomposition, so the results would obviously be different than the ones obtained from a DMTA machine.

Would like to hear from anyone with some rheology / viscoelastic characterization experience.

## European Conference on Constitutive Models for Rubber - ECCMR 7

The 7th European Conference on Constitutive Models for Rubber will take place in the Dublin Institute of Technology (DIT), Dublin, Ireland, 20-23 September 2011.

Deadline for abstract submission: the 5th of December 2010

Regards,

Erwan

## Journal Club Theme of Nov. 1 2008: Mechanical behaviour of rubber-like materials

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