Verification of the Ramberg-Osgood Material Model in Midas GTS NX with the Modeling of Torsional Simple Shear Tests

  • Zsolt Szilvagyi Széchenyi István University Department of Structural and Geotechnical Engineering
  • Richard P. Ray Széchenyi István University

Abstract

This study focuses on the back analysis of a geotechnical laboratory test with nonlinear finite element modeling using the Ramberg-Osgood material model. This model has been used by several authors recently for nonlinear ground response analysis and it has been implemented by Midas into their commercial finite element code Midas GTS NX 2014. The verification of the model for 1D nonlinear site response analysis can be found in the documentation of the software package. In this study, Torsional Simple Shear tests were modeled and a comprehensive study was performed to provide verification of the material model for static torsional loading and axisymmetric conditions.

Keywords: Ramberg-Osgood model, Torsional Simple Shear Test, small strain stiffness
Published online
2018-02-09
How to Cite
Szilvagyi, Z., & Ray, R. (2018). Verification of the Ramberg-Osgood Material Model in Midas GTS NX with the Modeling of Torsional Simple Shear Tests. Periodica Polytechnica Civil Engineering, 62(3), 629-635. https://doi.org/10.3311/PPci.11191
Section
Research Article