Cracks in gradient elastic bodies with surface energy

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1996 (EN)
Cracks in gradient elastic bodies with surface energy (EN)

Exadaktylos, G (EN)
Vardoulakis, I (EN)
Aifantis, E (EN)

N/A (EN)

In the present paper the effect of higher order gradients on the structure of line-crack tips is determined. In particular we introduce in the constitutive equations of the linear deformation of an elastic solid a volumetric energy term, which includes the contribution of the strain gradient, and a surface energy gradient dependent term and then determine the effect of these terms on the structure of the mode-III crack tip and the associated stress and strain fields. By making use of the solution in terms of Fourier transform of the equation of elastic equilibrium we solve the half-plane boundary value problems of: (a) specified tractions, and (b) prescribed displacements, along the crack surface, respectively. © 1996 Kluwer Academic Publishers. (EN)


Surface Energy (EN)
Higher Order (EN)
Boundary Value Problem (EN)
Constitutive Equation (EN)
Fourier Transform (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

International Journal of Fracture (EN)



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