Calibration of Elastic Moduli in Models for Granular Soils Used in Seismic Analyses of Geostructures

Abstract

This paper investigates the importance of appropriate calibration of the elastic moduli in models for granular soils used in seismic analyses of geostructures. The critique focuses on calibrating the elastic shear modulus based on the initial stages of the monotonic shear stress–strain response, which is known to underestimate the shear stiffness measured in true small-strain tests. The paper employs the Dafalias and Manzari (