The approaches to estimation of ductile crack growth under nonisothermal thermal-stress loading are considered in the paper. It is shown that in a number of cases when using isothermal JR-curves an estimation of ductile crack growth can be nonconservative. The engineering approach is proposed to estimate the value of ductile crack growth with regard to an actual history of nonisothermal thermal-stress loading. The paper cites an example of construction of nonisothermal JR-curves for the material of anticorrosive cladding of reactor pressure vessel (PVR) of WWER. Prediction of nonisothermal JR-curves by the use of finite element method (FEM) is made. It is shown that the nonisothermal JR-curves obtained by FEM and the proposed engineering approach are of a similar nature.
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ASME 2009 Pressure Vessels and Piping Conference
July 26–30, 2009
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping
ISBN:
978-0-7918-4369-7
PROCEEDINGS PAPER
The Engineering Approach to Estimation of Ductile Crack Growth Under Nonisothermal Loading
A. J. Minkin,
A. J. Minkin
Central Research Institute of Structural Materials “Prometey”, Saint-Petersburg, Russia
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B. Z. Margolin,
B. Z. Margolin
Central Research Institute of Structural Materials “Prometey”, Saint-Petersburg, Russia
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V. I. Kostylev,
V. I. Kostylev
Central Research Institute of Structural Materials “Prometey”, Saint-Petersburg, Russia
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V. A. Piminov
V. A. Piminov
OKB “Gidropress”, Podolsk, Russia
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A. J. Minkin
Central Research Institute of Structural Materials “Prometey”, Saint-Petersburg, Russia
B. Z. Margolin
Central Research Institute of Structural Materials “Prometey”, Saint-Petersburg, Russia
V. I. Kostylev
Central Research Institute of Structural Materials “Prometey”, Saint-Petersburg, Russia
V. A. Piminov
OKB “Gidropress”, Podolsk, Russia
Paper No:
PVP2009-77094, pp. 51-58; 8 pages
Published Online:
July 9, 2010
Citation
Minkin, AJ, Margolin, BZ, Kostylev, VI, & Piminov, VA. "The Engineering Approach to Estimation of Ductile Crack Growth Under Nonisothermal Loading." Proceedings of the ASME 2009 Pressure Vessels and Piping Conference. Volume 6: Materials and Fabrication, Parts A and B. Prague, Czech Republic. July 26–30, 2009. pp. 51-58. ASME. https://doi.org/10.1115/PVP2009-77094
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