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Cervenka Consulting Forums → ATENA → Modelling Foam → Post new reply

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4 Post by dpryl

To model foam as NLCem2 is quite unusual. If you need some nonlienar response of the foam, I would recommend to use the von Mises material (originally developed for plastic steel).

3 Post by gjsopal

Thanks for the guidance.

I modelling a foam which is transferring stresses between concrete surfaces. What kind of basic material should I define for foam (isotropic or nonlinear cementitous)? I tried to define it as cementitous with low modulus of elasticity. But seems need to define appropriate GAP elements to make the forces transfer.

Sincerely,

2 Post by dpryl

What kind of situation are you modelling? In most typical cases, foams used for insulation or to save weight can be modelled elastic with a relatively low Young modulus (e.g., 1/10-1/100 of the concrete E modulus) and a perfect connection to the surrounding concrete.

For modelling interfaces between 2 materials (volume macroelements), see the ATENA 3D User's and Theory manuals with information about the Interface (GAP) material model.

1 Post by gjsopal

Can a foam and foam-concrete bond model be built in ATENA engineering?

Thanks,

Cervenka Consulting Forums → ATENA → Modelling Foam → Post new reply