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由钢平板和碳纤维增强塑料框架组成的抗爆系统的设计优化

Design Optimization of Explosion-Resistant System Consisting of Steel Slab and CFRP Frame.

作者信息

Kim Jung J

机构信息

Department of Civil Engineering, Kyungnam University, Changwon-si 51767, Korea.

出版信息

Materials (Basel). 2021 May 16;14(10):2589. doi: 10.3390/ma14102589.

DOI:10.3390/ma14102589
PMID:34065738
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8156029/
Abstract

This study presents an explosion-resistant hybrid system containing a steel slab and a carbon fiber-reinforced polymer (CFRP) frame. CFRP, which is a high-strength material, acts as an impact reflection part. Steel slab, which is a high-ductility material, plays a role as an impact energy absorption part. Based on the elastoplastic behavior of steel, a numerical model is proposed to simulate the dynamic responses of the hybrid system under the air pressure from an explosion. Based on this, a case study is conducted to analyze and identify the optimal design of the proposed hybrid system, which is subjected to an impact load condition. The observations from the case study show the optimal thicknesses of 8.2 and 7 mm for a steel slab and a ϕ100 mm CFRP pipe for the hybrid system, respectively. In addition, the ability of the proposed hybrid system to resist an uncertain explosion is demonstrated in the case study based on the reliability methodology.

摘要

本研究提出了一种包含钢平板和碳纤维增强聚合物（CFRP）框架的抗爆混合系统。CFRP作为一种高强度材料，充当冲击反射部件。钢平板作为一种高延性材料，起到冲击能量吸收部件的作用。基于钢的弹塑性行为，提出了一个数值模型来模拟混合系统在爆炸空气压力下的动态响应。在此基础上，进行了一个案例研究，以分析和确定所提出的混合系统在冲击载荷条件下的优化设计。案例研究的观察结果表明，混合系统的钢平板最佳厚度为8.2毫米，CFRP管最佳直径为100毫米。此外，在案例研究中基于可靠性方法证明了所提出的混合系统抵抗不确定爆炸的能力。

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Reliability Analysis of Bond Behaviour of CFRP⁻Concrete Interface under Wet⁻Dry Cycles.干湿循环作用下CFRP-混凝土界面粘结性能的可靠性分析
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