接触爆炸荷载作用下核电站安全壳的动力响应分析

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Analysis of Dynamical Response of Nuclear Power Plant Concrete Containment under Contact Blast Load

摘要: 在现代战争中或遭到恐怖袭击时,核电站极有可能遭受精确制导装药的直接打击。核电站安全壳是防止放射性物质向环境释放的大体积预应力混凝土筒壳结构,是特殊环境条件下的重点防护目标。根据核电站安全壳的结构形式,采用流固耦合算法,对装药接触核电站安全壳表面爆炸时,爆炸冲击作用下安全壳的动力响应进行了数值模拟,得出了装药接触爆炸时结构的破坏情况以及应力分布规律。数值模拟结果可为核电站在战时的安全防护对策制定提供参考依据。
- 安全壳 /
- 接触爆炸 /
- 动力响应
Abstract: Nuclear power plant may be the target of the precision-guided bomb unit in the modern war and the attack of terrorists. Nuclear power plant containment shell is a large-volume pre-stressed reinforced concrete silo-shell structure to prevent radioactivity, and is the most important protected object in special condition. Based on the structure of nuclear power plant containment, this paper uses liquid-solid coupling arithmetic to analyze the concrete containment dynamical response under contact blast load. Detailed analysis reveals the law of structure damage and stress distribution of the containment shell in contact blast. These numerical values provide important technical parameters for the decision of safety measures for NPP in war.
- Nuclear power plant containment /
- Contact blast /
- Dynamical response