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论文类型：期刊论文

发表时间：2017-07-21

发表刊物：ENGINEERING FRACTURE MECHANICS

收录刊物：SCIE、EI、Scopus

卷号：180

页面范围：179-194

ISSN号：0013-7944

关键字：Symplectic method; Finite element discretized symplectic method; Stress singularities; V-notched multi-material plate; Generalized stress intensity factor

摘要：Stress singularities arising at the multi-material interface in a V-notched plate under bending are studied in the frame work of a Hamiltonian-based method. Exact solutions of V-notched multi-material plates are expressed in an analytical symplectic series. Newly defined generalized stress intensity factor (GSIF) are introduced to evaluate fracture behaviors of the V-notched plate. A highly accurate finite element discretized symplectic method is employed to compute the GSIFs and to obtain the explicit expressions of singular stresses near the notch tip. Comparisons are presented to show the accuracy and efficiency of the present work. Some new results are also provided. (C) 2017 Elsevier Ltd. All rights reserved.