Open AccessStress Intensity Factors for Crack Problems in Bonded Dissimilar Materials
Author(s) -
Khairum Hamzah,
Nik Mohd Asri Nik Long,
Norazak Senu,
Z. K. Eshkuvatov
Publication year - 2020
Publication title -
journal of engineering and technological sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.202
H-Index - 14
eISSN - 2338-5502
pISSN - 2337-5779
DOI - 10.5614/j.eng.technol.sci.2020.52.5.5
Subject(s) - stress intensity factor , traction (geology) , quadrature (astronomy) , crack tip opening displacement , displacement (psychology) , materials science , mathematical analysis , integral equation , mathematics , crack growth resistance curve , boundary value problem , crack closure , nyström method , function (biology) , coordinate system , structural engineering , mechanics , fracture mechanics , geometry , composite material , physics , engineering , optics , mechanical engineering , psychology , evolutionary biology , psychotherapist , biology
The inclined crack problem in bonded dissimilar materials was considered in this study. The system of hypersingular integral equations (HSIEs) was formulated using the modified complex potentials (MCP) function method, where the continuity conditions of the resultant force and the displacement are applied. In the equations, the crack opening displacement (COD) serves as the unknown function and the traction along the cracks as the right-hand terms. By applying the curved length coordinate method and the appropriate quadrature formulas, the HSIEs are reduced to the system of linear equations. It was found that the nondimensional stress intensity factors (SIF) at the crack tips depend on the ratio of elastic constants, the crack geometries and the distance between the crack and the boundary.
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