Vulnerability analysis of storage tank under the coupling effect of temperature load and blast fragment impact load

被引：0
作者：
Chen G. [1 ,2 ]
Yang P. [1 ,2 ]
Zhao Y. [1 ,2 ]
Li X. [1 ,2 ]
Zhao Y. [1 ,2 ]
机构：
[1] Institute of Safety Science & Engineering, South China University of Technology, Guangzhou
[2] Guangdong Provincial Science and Technology Collaborative Innovation Center for Work Safety, Guangzhou
[3] Guangdong Academy of Safety Science and Technology, Guangzhou
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 02期
关键词：
Blast fragment; Coupling effects; Limit state equation; Temperature load; Vulnerability;
D O I：
10.16085/j.issn.1000-6613.2020-0725
中图分类号：
学科分类号：
摘要：
Blast fragment and thermal radiation are important damage factors which contribute to Domino effect accidents escalation. In an actual accident scenario, a storage tank hit by blast fragment is also often subjected to the high-temperature load of surrounding fire. To study the vulnerability of tank under impact of fragments and high temperature, the limit state equation of the target storage tank under the coupling effect of temperature load and impact load was established, and the Monte-Carlo simulation is used to draw the vulnerability curve of the tank hit by fragments under different temperature, considering the effects of mass, speed and angle of fragments. The results showed that the mass and the impact angle of blast fragments are negatively correlated with the vulnerability of target tank, while the velocity of blast fragments is positively correlated with the vulnerability. When the mass of blast fragments is set as variable, in temperature ranges of 20-400℃ and 400-600℃, the average increased values of the maximum failure probability of the target storage tank for every 100℃ increase in temperature are 3.7% and 6.7%, respectively. When the velocity of blast fragments is regarded as variable, within the temperature range from 20℃ to 600℃, the average increased value of the maximum failure probability of the target storage tank is 3.9% for every 100℃ increase. When the impact angle of blast fragments is considered as variable, within the temperature range from 20℃ to 600℃, the average value of the maximum failure probability of the target storage tank augments from 0.675% to 7.01% for every 100℃ increase. The research is of great significance for evaluating the damage of tanks triggered by blast fragments in high temperature environments and for Domino effect accidents pre-control. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：1130 / 1136
页数：6
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