Suitable Contact Model for EDEM

jc_794

Hi Altair Community,

I am currently using EDEM v2024.1 to model rock behaviour. However, I have noticed that the built-in Bonding V2 model does not account for microcrack closure, which can lead to an initial increase in the overall mechanical properties of the material (e.g., Young’s Modulus) before reaching a certain threshold.

My current approach is to develop a custom contact model API to simulate this behaviour. However, before proceeding, I would like to ask if there is any built-in model in the current or upcoming versions of EDEM that incorporates this effect—for example, a model where the particle contact stiffness increases under slight stress.

Sincerely,

Jipei

Stephen Cole

Hi Jipei,

We don't have a model planned for this, the latest bonding type model implemented is fibres bonding:

https://help.altair.com/edem/topics/creator_tree_physics/fibers_bonding_model_c.htm

Regards

Stephen