Tavares breakage model for multisphere particles

Radosław Kasztelan

Hi, 

I would like to ask if in current version 2022.1, EDEM has an option to simulate breakage of multisphere particles. I had tried to do it and it worked however I am wondering about the accuracy of Tavares model in case of multisphere particles. What's more, when particle is being broken down it is creating new particles of same shape. Is this approach valid and recommended by Altair or is it just a feature that shouldn't be used yet? I would also ask about development of breakage model for more complex shapes - multisphere and finally polyhedral? Is there any date when we could expect such implementation? In competitor's software such options are already available. 

Best regards,
Radosław

Renan

Hi Radosław,

 

EDEM's breakage model only works for single spheres. This is because the Tavares Breakage model is energy based and the only contact model that has been proven to accurately calculate the collision energy for brittle dry non-cohesive materials is the Hertz-Mindlin model, which only is valid for single spheres. 

With that said I wouldn't recommend using the breakage model for any other shape than single spheres and even though other shapes are not available, EDEM's implementation of the Tavares Breakage model has been proved to be the most accurate one available.

 

Best regards,

Renan