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Indexed by:期刊论文

Date of Publication:2011-11-01

Journal:INTERNATIONAL JOURNAL OF FRACTURE

Included Journals:Scopus、SCIE、EI

Volume:172

Issue:1

Page Number:41-52

ISSN No.:0376-9429

Key Words:Singular finite element; Mixed-mode crack; Symplectic dual approach; Interfacial crack

Abstract:This paper investigates interfacial cracks with arbitrary crack surface tractions. A novel singular finite element which is constructed with the analytical solution around interfacial cracks is presented. Interfacial crack problems can be analyzed numerically using the singular finite element, and Mode I and/or Mode II stress intensity factors can be obtained directly. Unlike other enriched elements for cracks, neither extra unknowns nor transition elements are required. Numerical examples are given to illustrate the validity of present method.