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Dear STKO team

In webinar 25, you used the elastic isotropic material of the soil so the absorbing boundary parameters was the same as the soil (G and v), but if I use the other material of the soil such as PIMY, PDMY and so on, How can I determine the parameters of the absorbing boundary?

Thank you

In PDMY you input G and Bulk modulus... you can find the Poisson's ratio from them

E- Young's Modulus
G-Shear Modulus
K- Bulk Modulus
v- Poisson's ratio

K=E/[3*(1-2*v)]
G=E/2*(1+v)

Is it correct?

yes it is