question about granular materials 1

[alhussein1112]

can I change the density of the granular materials along silo/bin height or not?

 

[FEA way]

I assume that you are talking about modeling such materials as homogenous solids (not with DEM). In such case you can use distribution to specify spatial variation of the density in Abaqus/Standard analyses.

 

[alhussein1112]

can you please explain more ?

 

[FEA way]

First you should create the distribution:
Tools —> Discrete Field —> Create —> Definition: Elements. Specify the default value and values for each element. Then go to material editor and choose this distribution in the Density tab.

 

[alhussein1112]

I did what I understood from your advice, but there is a small problem appeared to me. I uploaded screenshots of them. I tried element ID with (element set, element number, and assembly name)…what is the solution for it?


Many thanks

 

[FEA way]

In the "Element ID" field you should specify the number of particular element. Just keep in mind that in case of discrete fields created for assembly level or history objects (like loads or interactions) this has to be a complete name of the element in form of: part_instance_name.element_number.

 

[alhussein1112]

*Part, name=Solids

*Instance, name=Solids-1, part=Solids

and the element number is 2410


Then it should be like that?

part_instance_Solids-1.element_2410

 

[FEA way]

In this case it should be:

Solids-1.2410

 

[alhussein1112]

Hello again:

Then what is the problem?!

 

[FEA way]

Try with just the number: 2410. It should work now.

 

[alhussein1112]