Hi all,In the manual it is mentioned that, when using a UDSM, the interface stiffness must be specified by the user in the form of a power law with Eoedref along with UD-pref and UD-Power. How does plaxis utilize this information? Does it use it to assign values to Kn, Ks and, if so, what is the formulation?Thank you for taking the time to respond,Giorgos
Dear Georgios,
Paragraph 6.1.7 of the PLAXIS 2D (2023) Reference Manual give the equations how Eoed,i and Gi are used to determine the k_n and k_s stiffness parameters. For internal models Eoed,i and Gi are taken from the adjacent soil, for a UDSM Eoed,i is user input and Gi is calculated from Eoed,i assuming elasticity.
With kind regards,
Dennis Waterman