How Can I define Distribution in Abaqus?

[Foroozan]

Hello All,
I modeled a pile of powder in Abaqus via DEM method. To change the radius of particles, I used Distribution function. Here is what I added to my INP file. (To simplify it, there are just four Elements.)
................
*discrete section, elset=dem, density=4600, alpha=7
distRad,
*DISCRETE ELASTICITY
0.5E+09, 0.3
*distribution table, name=DistRad
length
*distribution, name=distRad, table=distRad,location=element
,0.00001
**
1, 0.00001
2, 0.00002
3, 0.00003
4, 0.00004
*End Part

After running it, I face the following Error:
*density requires the use of *user material, *elastic, *eos, *hyperelastic, *anisotropic hyperelastic, *hyperfoam, *low density foam or *fabric
The distribution distrad has not been defined.
4 elements have missing property definitions. The elements have been identified in element set ErrElemMissingSection.


Also, I added the whole code in Model/Edit Keywords.
Here is another Error:
in keyword *DISTRIBUTIONTABLE, file "Test3.inp", line 282: The keyword is misplaced. It can be suboption for the following keyword(s)/level(s): model

I was wondering if you could help me.
Foroozan

 

[FEA way]

Go to Model --> Edit Attributes and check "Do not use parts and assemblies in input files", then paste those keywords if you want to define it this way. But it's better to write the input file and edit it instead of using the Keyword Editor in such cases.