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论文类型：期刊论文

发表时间：2017-08-01

发表刊物：MECHANICS OF TIME-DEPENDENT MATERIALS

收录刊物：SCIE、EI、Scopus

卷号：21

期号：3

页面范围：481-497

ISSN号：1385-2000

关键字：Viscoelasticity; Scaled boundary finite element method; Piecewise adaptive algorithm; Time domain

摘要：A combination of the scaled boundary finite element method (SBFEM) with a temporally piecewise adaptive algorithm is exploited to solve viscoelastic problems. By expanding variables at a discretized time interval, a coupled spatial-temporal problem is decoupled into a series of recursive spatial problems, which are solved by SBFEM, and a piecewise adaptive process in the time domain is realized via the change of expansion powers. Numerical verification, including the cases involving stress singularity, infinite domain, and inhomogeneous medium, are provided in comparison with analytical or ABAQUS-based solutions.