Topic: Interface material model roughness parameters
Is there any specific thumb rule on assigning the values of cohesion,tensile strength and friction depending on the roughness of the interface in consideration?
I understand the relation between these parameters as per the ATENA user manual and troubleshooting guidelines. I want to know, for example, for a surface roughness of 3 mm, what should be the values of the above mentioned parameters? (f_t, c, mu)