SAND MATERIAL

Nancy Jewel Mcdonie

Hi all experts, 

Can I set up my simulation with sand material? What card image I need to use? How to set up parameters for sand? It's the first time I deal with this material so I got some problem ))

Thanks all. 

Polyvios Romanidis

Hi Nancy,

There are several ways to simulate this type of material in Radioss, but mainly all of them are based in Drucker-Prager work.  The Material Laws that can be used are /MAT/LAW10, /MAT/LAW21 and /MAT/LAW102.  More info about them and how to set them up are provided in the following links.

/MAT/LAW10 : https://help.altair.com/hwsolvers/rad/topics/solvers/rad/mat_law10_dprag1_starter_r.htm?zoom_highlight=/MAT/LAW10

/MAT/LAW21 : https://help.altair.com/hwsolvers/rad/topics/solvers/rad/mat_law21_dprag_starter_r.htm

/MAT/LAW102 : https://help.altair.com/hwsolvers/rad/topics/solvers/rad/mat_law102_dprag2_starter_r.htm

A first approach of Drucker-Prager work can be found in the following page.

https://help.altair.com/hwsolvers/rad/topics/solvers/rad/theory_material_laws_elastic_plastic_isotropic_materials_drucker_prager_constitutive_model_r.htm#reference_zrr_glh_ldb

The use of the above laws depend mainly on the amount and type of available data you have for your material.

Polyvios