Clear all

Effect of Deformation mode on Viscoelasticity

Posts: 1
Topic starter
New Member
Joined: 4 days ago

Hi Jorgen,

I would like to know whether deformation modes play a role in Viscoelasticity?

I am currently performing tyre simulations and elements inside the tyre undergoes complex deformation and therefore to capture its behaviour should I include cyclical loading data through different deformation modes?

1 Reply
Posts: 3950
Joined: 3 years ago

It is not necessary to perform experimental tests in different loading modes if you plan to use a material model that is based on I1 (e.g. Arruda-Boyce, Yeoh, Neo-Hookean, Gent). This also includes linear and non-linear viscoelasticity based on these types of hyperelastic models.

If you plan to use a hyperelastic model that depends also on I2 (e.g. Mooney-Rivlin, Ogden, Extended Tube), then you should perform experiments also in different loading modes.