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原子炉構造レジリエンスを向上させる破損の拡大抑制技術の開発,5; 破壊制御による破損拡大抑制法の提案

Development of failure mitigation technologies for improving resilience of nuclear structures, 5; Proposal of failure mitigation methods by fracture control

笠原 直人*; 山野 秀将   ; 中村 いずみ*; 出町 和之*; 佐藤 拓哉*; 一宮 正和*

Kasahara, Naoto*; Yamano, Hidemasa; Nakamura, Izumi*; Demachi, Kazuyuki*; Sato, Takuya*; Ichimiya, Masakazu*

破壊制御を利用して、設計想定を超える事象によって破損が生じた場合に、その拡大を抑制する技術の開発を進めている。次世代高速炉の超高温時と過大地震時の原子炉容器と配管を例として、具体策の検討を進めた。

Utilizing fracture control, we are developing a technology to suppress the expansion of damage caused by an event that exceeds the design assumption. We proceeded with the study of concrete measures by taking the reactor vessel and piping of the next-generation fast reactor at ultra-high temperatures and during an excessive earthquake as an example.

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