Displaying similar documents to “Plasticity conditions of polycrystalline material with acicular structure. [Preliminary communication]”

Buckling of beam-column problem of anisotropic cylindrical shells

Anukul De (1986)

Aplikace matematiky

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The object of this paper is to formulate the differential equations in the beamcolumn problem of the buckling of anisotropic cylindrical shells, placed between the plates of a testing machine subject to an axial load P and a radial load H of sufficient magnitude to bring the expansion without constraint of the edges produced by P to zero deflection. The solution is obtained with necessary boundary conditions and the corresponding results for the isotropic case are deduced.

Cohesive crack tip modelling: size-scale transition from ductile to brittle failure

Alberto Carpinteri (1990)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

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The nature of the crack and the structure behaviour can range from ductile to brittle depending on tensile strength and fracture toughness of the material, as well as on the size-scale of the solid body. Strength and toughness present in fact different physical dimensions and any consistent fracture criterion must consider energy dissipation both per unit of volume and per unit of crack area. A cohesive crack model is proposed aiming at describing the size effects of fracture mechanics,...