Comparison between Ramberg-Osgood and Hardin-Drnevich soil models in Midas GTS NX

Abstract This paper studies the two widely used material models for predicting dynamic behavior of soils, Ramberg-Osgood and Hadrin-Drnevich models. Resonant column torsional simple shear test results on dry sand were to calibrate evaluate model built in finite element software Midas GTS NX. Both are already implemented by software. study estimates ability efficiency both soil coupled with Masing criteria predict when subjected irregular loading patterns, (e.g., earthquakes), measure most important properties, modulus, damping ratio.