Experimental and numerical simulation study on blast-resistance capacity of polyurea sprayed steel tank

YANG Guang; ZHANG Boyi; WEI Jianshu; JIANG Yuexin; XU Shilin

doi:10.11835/j.issn.2096-6717.2021.168

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Experimental and numerical simulation study on blast-resistance capacity of polyurea sprayed steel tank

Anti-explosion and Protection of Engineering Structures | 更新时间：2023-06-25

- Experimental and numerical simulation study on blast-resistance capacity of polyurea sprayed steel tank
- Journal of Civil and Environmental Engineering Vol. 45, Issue 1, Pages: 44-53(2023)
- 作者机构：
  
  1.上海爵格工业工程有限公司，上海 200082
  2.哈尔滨工业大学土木工程学院，哈尔滨150001
  3.哈尔滨工业大学（深圳）土木与环境工程学院，广东深圳 518055
- 作者简介：
  
  YANG Guang (1987- ), main research interest: anti-explosion and safety protection, E-mail: yangguang198759@sina.com.
  ZHANG Boyi （corresponding author）， associate professor， E-mail： zhangby@hit.edu.cn.
- 基金信息：
  
  National Natural Science Foundation of China(51778196)
- DOI：10.11835/j.issn.2096-6717.2021.168
  CLC： TE972
- Received：12 April 2021，
  
  Published：25 February 2023
- 稿件说明：
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YANG Guang, ZHANG Boyi, WEI Jianshu, et al. Experimental and numerical simulation study on blast-resistance capacity of polyurea sprayed steel tank[J]. Journal of Civil and Environmental Engineering, 2023, 45(1): 44-53.
DOI：

YANG Guang, ZHANG Boyi, WEI Jianshu, et al. Experimental and numerical simulation study on blast-resistance capacity of polyurea sprayed steel tank[J]. Journal of Civil and Environmental Engineering, 2023, 45(1): 44-53. DOI： 10.11835/j.issn.2096-6717.2021.168.

摘要

为考查聚脲涂层对钢制罐体抗爆能力的增强效果，对内侧喷涂聚脲涂层的缩尺模型罐和无涂层模型罐进行两次地面爆炸试验，并采集罐体测点位移时程及残余变形等响应数据。采用LS-DYNA软件中的ALE流固耦合分析方法对罐体的爆炸响应过程进行有限元模拟，并考查涂层粘接设定、罐体材料及涂层厚度对涂层防护效果的影响。试验结果表明，内侧喷涂聚脲涂层能显著降低罐体的最大位移及残余变形。数值模拟结果表明，聚脲涂层与钢板间的不同接触设置对罐体位移峰值的影响可以忽略，而对罐体残余位移影响较大；随着钢材屈服强度的提高，聚脲涂层位移的降低率逐渐减小；增大涂层厚度可减小罐体变形，但带来的增益不断降低。

Abstract

To investigate the enhancement effect of polyurea coating on the blast-resistance capacity of steel storage tanks

two ground explosion experiments were carried out in this study via the scale model steel tanks with polyurea coating sprayed inside and uncoated steel tanks

and the response data such as displacement time-history and residual deformation of the measuring point of the tanks were collected. Meanwhile

ALE fluid-solid coupling analysis method in LS-DYNA software was used to simulate the explosion response process of the tanks

and the influence of different coating connection settings

tank materials and coating thickness on the coating protection effect was investigated. The test results show that the inner spray polyurea coating can significantly reduce the maximum displacement and residual deformation of the tanks. The numerical simulation results show that the influence of different connection settings between the polyurea coating and the steel plate on the peak displacement of the tanks is negligible

while the influence on the residual displacement of the tanks is great. At the same time

with increase of steel yield strength

the displacement reduction ratio of polyurea coating decreases gradually. Increasing the coating thickness can reduce the deformation of tank. Howerer， the enhancement effect decreases continuously.

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references

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