Cost effective method of determining roots for NDT performance requirements

Author:

Tóth L.1,Trampus P.1

Affiliation:

1. 1 Faculty of Engineering, University of Debrecen, Debrecen, Hungary

Abstract

Abstract Goal of in-service NDT carried out in engineering plants is to reduce operational risk via contribution to insurance of the components’ structural integrity. NDT in structural integrity assessment has two directions. One of the basic problems in reliability assessment of engineering components having crack like flaws is on how the crack sensitivity of the component can be defined in terms of characteristic numbers. If we would be able to define it than the hazard of different flaws could be compared by pure numbers. The definition and introduction of a Crack Propagation Sensitivity Index of a component has fundamental meaning because the experimental results of the NDT, the loading conditions and the crack propagation resistance are physically connected by applying fracture mechanics principles in the components reliability assessment.

Publisher

Akademiai Kiado Zrt.

Subject

Management Science and Operations Research,General Engineering,Materials Science (miscellaneous),Information Systems,Environmental Engineering

Reference21 articles.

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2. Carpinteri, A. 1982. Fatigue growth of a surface crack in an elastic plate subjected to cyclic tensile loading, in: Proc. 8th Cong. Mat. Test., 1982, Budapest, 327–331.

3. Carpinteri, A. 1990. Surface flaw under cyclic bending loading, in: Proc. 1st Int. Conf. on Computer-Aided Assessment and Control of Localized Damage. Portsmouth, UK (Edited by M. H. Aliabadi, C. A. Brebbia, D. J. Cartwright), Springer-Verlag, 1990, Vol. 1. pp. 147–158.

4. Stress-intensity factors for semi-elliptical surface cracks under tension and bending;Carpinteri A.;Eng. Fract. Mech.,1991

5. Crack propagation under cyclic loading;Carpinteri A.;Fat. & Fract. of Eng. Mat. & Struct.,1992

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