Preliminary evaluation of aircraft impact on a near term nuclear power plant
Preliminary evaluation of aircraft impact on a near term nuclear power plant
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DOI：
10.1016/j.nucengdes.2011.08.079
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发表时间：
2011-12-01
影响因子：
1.7
通讯作者：
Forasassi, G.
中科院分区：
文献类型：
--
作者：
Lo Frano, R.;Forasassi, G.
为了评估核电站的安全性和耐久性，安全壳的建造行为应在各种服务和极端条件下进行评估，无论是自然的还是由自然事故或恶性人为活动产生的，如2001年9月的喷气式飞机坠毁。本文的目的是初步评估军用或民用飞机撞击核电站时传输到外安全壳的能量(根据国际安全和设计规范指南，如NRC或IAEA的指南)的影响和后果。为了对这种大型结构进行可靠的分析，并确定这种类型的脉冲载荷的传播对结构的影响(安全壳结构的响应)，使用了一个现实但仍然可行的、具有合适材料特性的数值模型，通过该模型反映了相关的物理现象。此外，还考虑了不同围护结构厚度和钢筋/预应力混凝土特性的影响，进行了敏感性分析。对获得的结果进行了分析，以校核核电厂的安全壳强度裕度。(C)2011爱思唯尔B.V.保留所有权利。
For the assessment of the safety and durability of a nuclear power plant (NPP), the containment building behaviour shall be evaluated, under various service and extreme conditions, both natural or produced by natural accident or vicious man activities, like September 2001 jet aircraft crashes.The aim of this paper is to preliminary evaluate the effects and consequences of the energy transmitted to the outer containment walls (according to the international safety and design code guidelines, as NRC or IAEA ones) due to a military or civil aircraft impact into a nuclear plant, considered as a 'beyond design basis' event.To perform reliable analysis of such a large-scale structure and determine the structural effects of the propagation of this types of impulsive loads (response of containment structure), a realistic but still feasible numerical model with suitable materials characteristics were used by means of which relevant physical phenomena are reflected. Moreover a sensitivity analysis has also been carried out considering the effects of different containment wall thickness and reinforced/prestressed concrete features. The obtained results were analysed to check the NPP containment strength margins. (C) 2011 Elsevier B.V. All rights reserved.