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Indexed by:期刊论文

Date of Publication:2017-07-21

Journal:ENGINEERING FRACTURE MECHANICS

Included Journals:SCIE、EI、Scopus

Volume:180

Page Number:179-194

ISSN No.:0013-7944

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

Abstract: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.