Stress intensity factor at the tip of cladding incipient crack in RIA-simulating experiments for high burnup PWR fuels

Udagawa, Yutaka ; Suzuki, Motoe; Sugiyama, Tomoyuki ; Fuketa, Toyoshi

RIA-simulating experiments for high burnup PWR fuels have been performed in the NSRR and stress intensity factor $_{rm I}$ I at the tip of cladding incipient crack has been evaluated in order to investigate its validity as a PCMI failure threshold in RIA conditions. An incipient crack depth was determined by observation of the metallographs. Hoop stress in cladding periphery during the pulse power transient was calculated by the RANNS code. Failure in elastic deformation range has never occurred with $_{rm I}$ of less than 17 MPa m $^{1/2}$ .

Language	:	English
Journal	:	Journal of Nuclear Science and Technology
Volume	:	46
Number	:	10
Pages	:	p.1012 - 1021
Publication Year/Month	:	2009/10
Meeting title	:
Held date	:
Location (city)	:
Location (country)	:
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.3327/jnst.46.1012
DOI for research data	:
Keywords	:	no keyword
Research Facility	:	NSRR(原子炉安全性研究炉)
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	経済産業省原子力安全・保安院

Accesses	:	- Accesses
Web of Science® Times Cited Count	:	Times Cited Count： If you would like to get the latest times cited, please access the Web of Science®. http://www.webofknowledge.com/wos
InCites™	:	Percentile:45.28 Category:Nuclear Science & Technology
Altmetrics	:

Registration No. : AA20080820
JAEA Abstracts No. : 37001489
Paper Submission No. : 6488

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.