Resilient modulus of granular materials under repeated loading

Abstract

Several models presently available for characterisation of granular materials under repeated loading are reviewed and a new simple elastic model is subsequently proposed. The model can predict the dynamic stress-strain relationship (yielding and locking) during loading and incorporates both the first invariant of stress and the repeated deviator stress. The model is dimensionally stable, requires only straightforward calculation for parameters, and offers a practical application in the analysis and design of flexible pavements as well as in the evaluation of material performance.