A powerful matrix formalism for stress singularities in anisotropic multi-material corners. Homogeneous (orthogonal) boundary and interface conditions

نویسندگان

چکیده

A computational code based on a semianalytic procedure for the determination of characteristic exponents and singular stress displacement fields in multi-material corners is developed. Linear elastic anisotropic materials under generalized plane strain state are considered. This universal tool able to analyze both open closed (periodic) corners, composed one or multiple with isotropic, transversely isotropic orthotropic constitutive laws, covering mathematically non-degenerate degenerate framework Stroh formalism. In material junctions perfectly bonded frictionless sliding interfaces can be studied. The considered homogeneous boundary conditions cover free fixed faces, faces some restricted allowed direction displacements, defined either reference frame aligned cylindrical coordinate system an inclined frame. developed MATLAB it matrix formalism elasticity, concept transfer single wedges, (orthogonal) conditions. comparison obtained by present solution closed-form eigenequations available literature, has two-fold objective, first exhaustively check general implementation presented, second expressions relevant specific cases published literature. • New semi-analytical singularities multimaterial corners. Several types interface covered. General Code verified results from

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ژورنال

عنوان ژورنال: Theoretical and Applied Fracture Mechanics

سال: 2022

ISSN: ['0167-8442', '1872-7638']

DOI: https://doi.org/10.1016/j.tafmec.2022.103271