The Bending of Plates of Dissimilar Materials With Cracks

[+] Author and Article Information
G. C. Sih

Lehigh University, Bethlehem, Pa.

J. R. Rice

Department of Mechanics, Lehigh University, Bethlehem, Pa.

J. Appl. Mech 31(3), 477-482 (Sep 01, 1964) (6 pages) doi:10.1115/1.3629665 History: Received January 15, 1963; Revised September 17, 1963; Online September 15, 2011


This paper considers the problem of bending of a plate composed of two plates of materials having dissimilar elastic properties, bonded together along a straight line which sustains a crack. Both materials are assumed to be isotropic and homogeneous. Upon obtaining stress solutions, it is found that the significant stresses are inversely proportional to the square root of the radial distance from the crack front and have an oscillatory character, which is shown to be confined to the immediate vicinity of the crack tip. A two-parameter set of equations expressing the general form of the stress distribution around the tip of such a crack is provided as it is of primary importance in predicting the strength of cracked plates. Some analogies are also observed between the characteristic equations occurring in the extension and bending of cracked plates composed of dissimilar materials.

Copyright © 1964 by ASME
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