Hi all
I wish to use an other material for the walls then for the particles, e.g. particles > glass, walls > Al. Under the fix mesh/gran I can specify the walltype by setting the number (ID) of the atom type. I did the following steps trying to use a different wall material:
1) read data file: 3 atom types
2) read data file: define the coordinates and properties for the 2 existing atom types
3) for fix property/global I spedified 3 youngsModulus, 3 poissonsRatios, 9 coefficientRestitution, 9 coefficientFriction and 1 characteristicVelocity
4) in fix mesh/gran I imported the .stl-file and set walltype to 3
Is this approach stupid? I ask because the solution is crap. The particles disappear during solving.
How would you specify different materials for walls?
Cheers
Claudio
ckloss | Wed, 11/02/2011 - 21:00
that sounds ok. maybe there
that sounds ok. maybe there is another problem, e.g. youngsModulus too low?
Christoph
Claudio Wolfer | Thu, 11/03/2011 - 08:52
youngsModulus too low
Hi Christoph
Thanks for your answer. Playing around with youngsModulus showed me that the value was one order of magnitude too low. Setting the true material properties the solution runs properly. -- One operating experience more :-)
Claudio