Numerical investigation of arching effect in sand heap using an elastic model based on the method of isogeometric analysis

摘要

The local minimum pressure in sand heap initiated by the base deflection is reexamined by an elastic model; whereby, the effect of elastic input parameters such as Young's modulus, Poisson's ratio, and basal roughness conditions on the pronounced local minimum pressure is also disclosed by means of the elastic model. The method of IsoGemetric Analysis (IGA) was implemented for discretizing the spatial domain instead of Finite Element Method; therefore, the superiority of IGA over FEM in terms of computational cost was also demonstrated.