Cyclic Operation of Pressure Piping With γ Heating

Autor:	K. R. Merckx
Rok vydání:	1960
Předmět:	Piping Materials science Nuclear reactor core Pressure tube business.industry Residual stress Heat generation Structural engineering Mechanics Elasticity (economics) Plasticity business Residual
Zdroj:	Journal of Basic Engineering. 82:447-451
ISSN:	0021-9223
DOI:	10.1115/1.3662617
Popis:	S>An elastic-plastic analysis is developed for an internally cooled pressure tube with uniform heat generation. This analysis extends the method of calculating the location of the elastic-plastic boundary reported by Barrie to account for the change in the plastic zone due to residual stresses which occur during cyclic operation. Numerical calculations are made for operating conditions expected to be encountered in a stainless steel pressure tube in a loop through the Engineering Test Reactor Core. The numerical results show that the radius of the initial plastic boundary decreases during subsequent loading cycles. Also, for equal maximum pressure and volumetric heat generation, the total plastic strain per operational cycle on the inner tube surface and the residual tensile stress on the outer tube surface increase when the tube wail is thickened. (auth)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fe2a0f56e61e7f689c8b44d89ecca606 https://doi.org/10.1115/1.3662617 Zobrazit plný text záznamu