<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Multi-material junctions with functionally graded materials"^^ . "Composites frequently involve situations where nonhomogeneous materials are either present\r\nnaturally, or used intentionally to attain a required mechanical performance. Starting from Bogy\r\n(1968), bi- and multi-material junctions between different homogeneous materials have been\r\ncharacterized from the stress-singularity point of view. In these studies, the material parameters\r\nwere assumed to be constant inside each material region and an abrupt discontinuity of the elastic\r\nproperties at the interfaces was allowed.\r\nMore recently, another class of materials, conventionally referred to as functionally graded\r\nmaterials (FGMs), has been proposed, which involves materials whose elastic properties vary\r\ncontinuously. When two materials are joined together, an abrupt discontinuity of the elastic\r\nparameters, which is usually assumed for analytical purposes, does not exist in reality. On the\r\ncontrary, materials in the proximity of the interface possess continuous, rapidly varying elastic\r\nmoduli (Eischen (1987), Paulino (2002)).\r\nIn this paper the problem of stress-singularity due to multi-material junctions composed of\r\nangularly nonhomogeneous elastic wedges in plane elasticity is addressed. For this new type of\r\ngrading the governing equation for the Airy stress function is derived and, by applying the\r\neigenfunction expansion method, a fourth order ODE with nonconstant coefficients for the\r\neigenequation is obtained. The solution to this ODE permits to formulate an eigenvalue problem\r\nsimilar to that valid for material junctions between homogenous different materials. Moreover, it\r\nis mathematically demonstrated that the angular grading influences the order of the stresssingularity.\r\nThe potentials of the use of this new class of materials in joining technology are\r\ncarefully investigated and some illustrative examples involving three-material junctions are deeply\r\ndiscussed. Comparisons"^^ . "2005" . . "Firenze University Press"^^ . . "Firenze University Press"^^ . . . . . . . . . . . "Alberto"^^ . "Carpinteri"^^ . "Alberto Carpinteri"^^ . . "Marco"^^ . "Paggi"^^ . "Marco Paggi"^^ . . . . . "HTML Summary of #1931 \n\nMulti-material junctions with functionally graded materials\n\n" . "text/html" . . . "TJ Mechanical engineering and machinery"@en . .