Cohesive energy density

Submitted by davidf on Mon, 04/28/2014 - 10:35

Dear community,
I'm modelling powder flow and would like to account for cohesion and adhesion. The LIGGGHTS cohesion modules require
a cohesion energy density defined for each pair of materials. Where do I get this parameter from ? I couldn't find it in literature
Is there a way to get an estimate for the cohesive energy density ? Is there any link between this parameter and Force curve obtained from AFM measurements ?

Best regards,
David

zamir | Tue, 05/20/2014 - 05:54

David,

Search Johnson-Kendall-Roberts and adhesion or cohesion in google scholar or any academic search engine and you will find papers decribing variations of the cohesion models used in LIGGGHTS.

Zamir