ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Steam generator in a nuclear power plant is huge heat exchanger that transfers heat fromreactor to make steam to drive turbine-generator. Failure of the steam generator tubes can result in therelease of fission products to the secondary side. Therefore, accurate integrity assessment of thecracked steam generator tubes is of great importance for maintaining the safety of the nuclear powerplant. This paper provides limit loads for circumferential through-wall cracks in steam generatortubes under combined internal pressure and bending loads. Such limit loads are developed on thebasis of three dimensional finite element analyses assuming elastic-perfectly plastic materialbehavior. As for the crack location, both the top of the tubesheet and U-bend regions are considered.The analysis results can be directly applied to the practical integrity assessment of cracked steamgenerator tubes, because the comparison between experimental data and FE results shows a very goodagreement
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.345-346.1357.pdf
