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Critical stress intensity factors for cracked hollow pipes under transient thermal loads

Jayadevan, KR (2002) Critical stress intensity factors for cracked hollow pipes under transient thermal loads. In: Journal of Thermal Stresses, 25 (10). pp. 951-968.

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Official URL: http://www.tandfonline.com/doi/abs/10.1080/0149573...

Abstract

Finite element analyses of a long hollow cylinder having an axisymmetric circumferential internal edge crack, subjected to convective cooling on the inner surface are performed. The transient thermal stress intensity factor is estimated using a domain version of the J-integral method. The effect of the thickness of the cylinder, crack length, and heat transfer coefficient on the stress intensity factor history are studied. The variations of critical normalized stress intensity factor with crack length-to-thickness ratio for different parameters are presented. The results show that if a small inner surface crack begins to grow, its stress intensity factor will increase with increase in crack length, reach a maximum, and then begin to drop. Based on the results, a fracture-based design methodology for cracked hollow pipes under transient thermal loads is discussed.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Keywords: Cracked Hollow Cylinders;Finite Element Methods;Thermal Stress Intensity Factor;Thermomechanical Loading;Transient Thermal Loads
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 21 Jul 2011 09:24
Last Modified: 21 Jul 2011 09:24
URI: http://eprints.iisc.ernet.in/id/eprint/39109

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