Hi, you cannot mix "materials" by this way. If you need a local damping in HM, you will, probably, need to write your own HM-visco material, if it has physical meaning.
Anton On Wed, Jun 29, 2011 at 10:14 AM, Christian Jakob <[email protected]> wrote: > Hello again, > > I need to create a material with Hertz-Mindlin contact model (given > shear modulus and poisson ratio) with viscous damping in normal and > shear direction. The question is: How can I do this? > > I can create a viscous elastic material with linear contact model ... > O.materials.append(ViscElMat(density=2700,kn=1e8,ks=1e8,frictionAngle=1,cn=0.002,cs=0.001)) > > and I can create an inelastic material with Hertz model, but without > viscous damping .... > O.materials.append(NormalInelasticMat(young=2e7,poisson=0.3,frictionAngle=1,coeff_dech=1)) > > if I try to combine, an error occured: > O.materials.append(NormalInelasticMat(young=2e7,poisson=0.3,frictionAngle=1,coeff_dech=1,cn=0.002,cs=0.001)) > > "AttributeError: No such attribute: cn" > > > Regards, > > Christian Jakob > -- > This message was sent from Launchpad by > Christian Jakob (https://launchpad.net/~jakob-ifgt) > using the "Contact this team" link on the yade-users team page > (https://launchpad.net/~yade-users). > For more information see > https://help.launchpad.net/YourAccount/ContactingPeople > > _______________________________________________ > Mailing list: https://launchpad.net/~yade-users > Post to : [email protected] > Unsubscribe : https://launchpad.net/~yade-users > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
