Dear Navid Yeganeh

Yes, you can perform static numerical modeling similar equivalent linear method. Indeed, first, assume a G0 (or E0) form G/G0 (E/E0) curve and then carry out static analysis. In the second stage, read shear strain from the model and in continue, consider the new G0 (or E0) form G/G0 (E/E0) curve. This process continues until the numerical model to converge.

You can use a modulus reduction curve to define the G value from G0, based on your strain level, in a static analysis.

Thanks Madhavi. Would you mind if I asked you to cast light on the said procedure in FLAC3D because it seems that the G-reduction curve cannot be activated amidst the static analysis stemming from the limitation of employing the hysteretic damping just in the dynamic analysis.