The multi-layered ring under parabolic distribution of radial stresses combined with uniform internal and external pressure

A recently introduced solution for the stress- and displacement-fields, developed in a multi-layered circular ring, composed of a finite number of linearly elastic concentric layers, subjected to a parabolic distribution of ra-dial stresses, is here extended to encompass a more general loading schem...

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Bibliographic Details
Main Authors: Christos F. Markides, Ermioni D. Pasiou, Stavros K. Kourkoulis
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2017-04-01
Series:Fracture and Structural Integrity
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Online Access:http://www.gruppofrattura.it/pdf/rivista/numero40/numero_40_art_10.pdf
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Summary:A recently introduced solution for the stress- and displacement-fields, developed in a multi-layered circular ring, composed of a finite number of linearly elastic concentric layers, subjected to a parabolic distribution of ra-dial stresses, is here extended to encompass a more general loading scheme, closer to actual conditions. The loading scheme includes, besides the para¬-bolic radial stresses, a combination of uniform pressures acting along the outer- and inner- most boundaries of the layered ring. The analytic solution of the problem is achieved by adopting Savin’s pioneering approach for an infinite plate with a hole strengthened by rings. Taking advantage of the results provided by the ana¬lytic solution, a numerical model, simulating the configuration of a three-layered ring (quite commonly encountered in practic¬al applications) is validated. The numerical model is then used for a parametric analysis enlightening some crucial aspects of the overall response of the ring.
ISSN:1971-8993
1971-8993