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论文类型：期刊论文

发表时间：2018-12-01

发表刊物：INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS

收录刊物：SCIE、Scopus

卷号：15

期号：8

ISSN号：0219-8762

关键字：Fracture; stress intensity factor; singular cell-based smoothed radial point interpolation method; finite element method

摘要：The singular cell-based smoothed radial point interpolation method (CS-RPIM) has been previously proposed and shown good performance in solving fracture problems. Motivated from the fact that CS-RPIM performs over softly by providing an upper bound solution and the finite element method (FEM) is overly stiff by providing a lower bound solution, this work proposes a combination of singular CS-RPIM and FEM with a correlation coefficient alpha, and alpha = 0.97 has been recommended through intensive numerical studies. Several numerical examples have been studied and the proposed method has been found perform quite well from both stress intensity factors and strain energy.