Citation

Chou CC, Zhu F, Skelton P, Wagner C, Yang KH. Int. J. Veh. Safety 2011; 5(4): 287-306.

Copyright

(Copyright © 2011, Inderscience Publishers)

DOI

10.1504/IJVS.2011.045784

PMID

unavailable

Abstract

This paper presents soil-trip rollover simulations using a simplified pickup truck model over a geomaterial surface, whose characteristics are determined using a new calibration method with an improved uniaxial strain compression test. Parameters of MAT-005 in LS-DYNA were determined based on soil test results. A Finite Element (FE) soil model was developed and the results predicted by the FE model were compared with experimental data favourably. Using the three calibrated geomaterial models and the pickup truck model, additional computational studies of soil/tyre interaction demonstrate that the MAT-005 material model has a robust performance in large strain under dynamic loading conditions.


Keywords: granular geomaterials; uniaxial strain compression; analytical modelling; numerical simulation; properties characterisation; tyre-soil interaction; rollover simulation; soil-trip rollover; vehicle rollover; pickup trucks; vehicle safety; finite element method; FEM.