I am working on a research paper entitled "Dynamic Analysis of soil under railway" and i want some scientific information about the effect of train velocity on the dynamic effect, types of soil under railway, impact load of the train, Is there a special kind of modeling soil in this condition?
Thank you for your cooperation
As regards the constitutive model of soil for dynamic loads, should be used model for cyclic loading. If it comes to models for clays, would be apply bounding surface constitutve models with isotropic and kinematic hardening: "Bubble" model (Al Tabba), 3-SKH (Stallebrass ), Zienkiewicz, Mroz i Norris model etc
It is better to use triaxial test for soil modelling to get good result under dynamic condition
Dear Aly
All models I've mentioned use the results of triaxial dynamic test for small deformations
