Plastic zones for a penny-shaped crack in a transversely isotropic layer bonded between two isotropic half spaces

In this paper, a problem in an elastic-perfectly plastic dissimilar layered medium is considered. It is assumed that a transversely isotropic layer is sandwiched between two isotropic semi-infinite half spaces, and contains a penny-shaped crack located in its mid-plane. The problem is formulated by...

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Bibliographic Details
Published in:European journal of mechanics, A, Solids A, Solids, 2002, Vol.21 (3), p.401-410
Main Authors: Uyaner, M., Ataberk, N., Avci, A.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fracture mechanics, fatigue and cracks
Fundamental areas of phenomenology (including applications)
Inelasticity (thermoplasticity, viscoplasticity...)
Penny-shaped crack
Physics
Plastic zone
Singular integral equation
Solid mechanics
Structural and continuum mechanics
Transversely isotropic material
Viscoelasticity, plasticity, viscoplasticity
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Summary:In this paper, a problem in an elastic-perfectly plastic dissimilar layered medium is considered. It is assumed that a transversely isotropic layer is sandwiched between two isotropic semi-infinite half spaces, and contains a penny-shaped crack located in its mid-plane. The problem is formulated by using integral transform technique under uniform load and reduced to a singular integral equation. This integral equation is solved numerically by using Gaussian Quadrature Formulae. The plastic zones are evaluated by using the plastic strip model. They are plotted for various penny-shaped crack sizes and transversely isotropic materials.
ISSN:0997-7538
1873-7285
DOI:10.1016/S0997-7538(02)01219-6