Fourier-finite element analysis of pavements under moving vehicular loading

摘要: With the goal of predicting progressive pavement distress (damage and rutting) under millions cycles moving vehicular loading, an efficient analysis framework is developed by combining ideas Fourier transform, finite element discretisation time-scale separation. Using simple observation separation between evolution damage/rutting, temperature variation traffic load variation, reduced to a few hundred analyses stress strain single cycle load. A new method called Fourier-finite (FFE) proposed for each independent analysis. Essentially, used eliminate time dimension as well spatial in direction traffic, reducing problem set two-dimensional problems, which are turn solved using (FEM). The FFE more than direct three-dimensional (3D) FEM orders m...