Results 1 to 10 of about 155 (140)
Buildings, 2023 Prestressing plays a pivotal role in ensuring the tightness and integrity of prestressed concrete containment in nuclear power plants. The prestress loss reduces the compressive stress in concrete resulting from the prestressing strands and increases the
Xingyi Wu +3 more
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Nuclear Engineering and Technology, 2015 Background: Fibers in concrete resist the growth of cracks and enhance the postcracking behavior of structures. The addition of fibers into a conventional reinforced concrete can improve the structural and functional performance of safety-related ...
Young-Sun Choun, Hyung-Kui Park
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Strain Monitoring and Numerical Simulation Analysis of Nuclear Containment Structure During Containment Tests [PDF]
SensorsStrain monitoring during the service life of a nuclear containment structure is an effective means to evaluate whether the structure is operating safely. Due to the failure of embedded strain sensors, surface-mounted strain sensors should be installed on
Xunqiang Yin +4 more
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Experimental and numerical modeling of creep in different types of concrete [PDF]
Heliyon, 2018 Creep in concrete, play a critical role in estimating losses in prestressed concrete structures, such as bridge girders, nuclear containment vessels, etc.
D. Harinadha Reddy, Ananth Ramaswamy
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Applied Sciences, 2017 As the last barrier of nuclear reactor, prestressed concrete containment vessels (PCCVs) play an important role in nuclear power plants (NPPs). To test the mechanical property of PCCV during the integrated leakage rate testing (ILRT), a fiber Bragg ...
Jinke Li +6 more
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Nuclear Engineering and Technology, 2015 Background: Fibers have been used in cement mixture to improve its toughness, ductility, and tensile strength, and to enhance the cracking and deformation characteristics of concrete structural members. The addition of fibers into conventional reinforced
Young-Sun Choun, Junhee Park
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Nuclear Engineering and Technology, 2016 The numerical simulation methodologies to evaluate the structural behaviors of prestressed concrete containment vessels (PCCVs) have been substantially developed in recent decades.
Sang-Hoon Noh +2 more
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Acta Polytechnica CTU Proceedings, 2022 EDF operates a nuclear power generation fleet made up of 56 reactors. This fleet contains 24 reactors designed as double-walled concrete containment building.
Laurent Charpin +13 more
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Nuclear Engineering and Technology, 2023 In nuclear power plant (NPP) accidents, the containment is subject to high temperatures and high internal pressures, which may further trigger serious chain accidents such as core meltdown and hydrogen explosion, resulting in a significantly higher ...
Qingyu Yang, Jiachuan Yan, Feng Fan
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Risk due to creep of prestressed concrete at moderate temperature [PDF]
MATEC Web of Conferences, 2019 This study is a part of a French national project dealing with the mechanical behaviour of the containment vessel of French Nuclear Power Plants in case of a severe accident. The accident conditions are characterized by the increases of internal pressure,
Vidal Thierry +4 more
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