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Indexed by:期刊论文

Date of Publication:2017-02-01

Journal:COMPUTERS AND GEOTECHNICS

Included Journals:SCIE、EI

Volume:82

Page Number:201-210

ISSN No.:0266-352X

Key Words:Polygon element; Elasto-plastic; Scaled boundary finite element; Finite element method

Abstract:The polygon scaled boundary finite element method is semi-analytical and known for its high precision. However, the material nonlinearity cannot be maintained because this method uses an analytical solution in the radial direction. In this paper, a novel nonlinear algorithm is developed by introducing internal Gaussian points over a subdomain. The response of nonlinearity for a concrete-faced rockfill dam is modeled. The results correspond well with the results from finite element modelling, which demonstrates the method can be used to describe the nonlinear characteristics of geomaterials. Furthermore, this method offers promising flexibility for analyzing complex geometries without decreasing the precision. (C) 2016 Elsevier Ltd. All rights reserved.