TY - JOUR
TI - An anisotropic model of unbound granular material under repeated loading
AU - Karaşahin Mustafa
JN - Thermal Science
PY - 2019
VL - 23
IS - 11
SP - 295
EP - 302
PT - Article
AB - The base and subbase layers of a pavement are compacted to the desired  density by rollers. This cause the anisotropy in other words the layer more  stiffer in the vertical direction than the horizontal direction. In the  study inherent and stress induced anisotropy were measured by using the  repeated load triaxial test equipment which is able cycle both confining and  axial pressure. The test results were then modelled using the stepwise  regression. A new cross anisotropic model was proposed to predict the  unbound stress-strain behavior. The proposed model is able to predict the  axial strain more accurately than the radial strain.