Two-dimensional model for crack closure effect in plates under bending 13; 13;

Murthy, MVV and Viswanath, S and Rao, krishna Murty (1988) Two-dimensional model for crack closure effect in plates under bending 13; 13;. Engineering Fracture Mechanics, 29 (4). pp. 435-452. ISSN 0013-7944

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Abstract

A two-dimensional model is proposed for taking into account the establishment of contact on the compression side of crack faces in plates under bending. An approximate but simple method is developed for evaluating reduction of stress intensity factor due to such quot;crack closurequot;. Analysis is first carried out permitting interference of the crack faces. Contact forces are then introduced on the crack faces and their magnitudes determined from the consideration that the interference is just eliminated. The method is based partly on finite element analysis and partly on a continuum analysis using Irwin's solution for point loads on the crack line. 13; 13;

Item Type: Journal Article
Additional Information: Copyright for this article belong to Elsevier Science
Uncontrolled Keywords: Bending moments;Crack closure;Notch tests;Rectangular plates;Two dimensional models;Finite element method;Load distribution(forces);Stress intensity factors;Plate;Cracks;Bending;Stress
Subjects: AERONAUTICS > Aerodynamics
Division/Department: Structures Division, Structures Division, Other
Depositing User: M/S ICAST NAL
Date Deposited: 10 Mar 2010
Last Modified: 24 May 2010 09:52
URI: http://nal-ir.nal.res.in/id/eprint/3131

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