In Japan, nuclear power plants must be protected from tornado missiles that are prescribed by Nuclear Regular Authority (NRA). When evaluating the structural integrity of steel structures in the plant with impact analysis by numerical code, strain-based criteria are appropriate because the tornado missiles have huge impact energy and may cause large deformation of the structures. As one of the strain-based criteria, the Japan Society of Mechanical Engineers (JSME) prescribes limiting triaxial strain for severe accident of Pressurized Water Reactor (PWR) steel containment. To confirm whether or not this criterion is appropriate to the evaluation of the impact phenomena between the steel structures and the tornado missiles, a free drop impact experiment to steel plates (carbon steel and austenitic stainless steel) was carried out with heavy weights imitated on one of the tornado missiles, followed by an impact analysis of the experiment with AUTODYN code and the JSME strain-based criterion. Consequently, it was confirmed that the strain-based criterion of JSME standard was for evaluating the fracture of steel structures caused by tornado missiles.
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2016 24th International Conference on Nuclear Engineering
June 26–30, 2016
Charlotte, North Carolina, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5001-5
PROCEEDINGS PAPER
Proposal for Evaluation With Strain-Based Criterion of Impact Phenomena Between Steel Structure and Tornado Missile Available to Purchase
Yuko Sakamoto,
Yuko Sakamoto
Central Research Institute of Electric Power Industry, Abiko, Japan
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Koji Shirai,
Koji Shirai
Central Research Institute of Electric Power Industry, Abiko, Japan
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Toshiko Udagawa,
Toshiko Udagawa
WDB Co., Ltd., Tokyo, Japan
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Shunsuke Kondo
Shunsuke Kondo
Central Research Institute of Electric Power Industry, Abiko, Japan
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Yuko Sakamoto
Central Research Institute of Electric Power Industry, Abiko, Japan
Koji Shirai
Central Research Institute of Electric Power Industry, Abiko, Japan
Toshiko Udagawa
WDB Co., Ltd., Tokyo, Japan
Shunsuke Kondo
Central Research Institute of Electric Power Industry, Abiko, Japan
Paper No:
ICONE24-60171, V001T03A009; 10 pages
Published Online:
October 25, 2016
Citation
Sakamoto, Y, Shirai, K, Udagawa, T, & Kondo, S. "Proposal for Evaluation With Strain-Based Criterion of Impact Phenomena Between Steel Structure and Tornado Missile." Proceedings of the 2016 24th International Conference on Nuclear Engineering. Charlotte, North Carolina, USA. June 26–30, 2016. V001T03A009. ASME. https://doi.org/10.1115/ICONE24-60171
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