A Boundary Element Formulation for Crack Analyses Incorporating a Cohesive Zone Model

A Boundary Element Formulation for Crack Analyses Incorporating a Cohesive Zone Model

Gonçalves, P.C. Palermo JR., L. Proença, S.P.B

Natural Resources Institute, Federal University of Itajubá, Brazil

School Civ. Eng. Arch. Urban Design, University of Campinas, Brazil

São Carlos School of Engineering, University of São Paulo, Brazil

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A formulation is presented to perform crack propagation analyses in cohesive materials with the dual boundary element method (DBEM) using the tangential differential operator in the traction boundary-integral equations. The cohesive law is introduced in the system of equations to directly compute the cohesive forces at each loading step. A single edge crack is analyzed with the linear function to describe the material softening law in the cohesive zone, and the results are compared with those from the literature.


cohesive model, crack analysis, dual boundary element model, plane problems, tangential differential operator


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