Hits:

Indexed by:期刊论文

Date of Publication:2017-05-01

Journal:COMPUTERS AND GEOTECHNICS

Included Journals:SCIE、EI

Volume:85

Page Number:103-116

ISSN No.:0266-352X

Key Words:Interface element with asymmetric nodes; Concrete-faced rockfill dams; Coarse-fine mesh transition between soil and structure

Abstract:Based on the Goodman element, the Guyan reduction method is introduced to develop the interface element with asymmetric nodes, which accomplishes the coarse-fine mesh transition between soil and structure in finite element models by providing a different number of nodes on the two sliding surfaces. The number of Gauss points is greater than that of the traditional Goodman element, which ensures its accuracy. The developed interface element is employed in the dynamic elasto-plastic analysis of CFRDs. The results indicate that the use of the constructed interface element can significantly decrease the number of elements with little influence on the accuracy. (C) 2016 Elsevier Ltd. All rights reserved.