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RESEARCH PAPERS

Stress Concentrations for Filled and Unfilled Closely Spaced Cylindrical Defects

[+] Author and Article Information
T. Ihara, M. C. Shaw

Arizona State University

J. Eng. Mater. Technol 107(4), 271-276 (Oct 01, 1985) (6 pages) doi:10.1115/1.3225818 History: Received September 19, 1984; Online September 15, 2009

Abstract

All real materials contain defects which significantly reduce the fracture stress of brittle materials. It has been proposed by Griffith [3] that brittle fracture occurs when the maximum intensified tensile stress on the surface of a defect reaches a critical value. It has recently been found [1] that for many brittle materials of high quality, the nature and density of the defects are such that they may be modelled by isolated cylindrical voids. This study considers the stress intensification consequences of the close spacing of cylindrical defects that are filled with a material having a Young’s modulus different than that of the matrix.

Copyright © 1985 by ASME
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