Blast resistance of multi-layered concrete slabs

FIBRE CONCRETE 2019

土木建筑工程

Fládr, J.^1 ; Chylík, R.^1 ; Šeps, K.^1 ; Štoller, J.^2 ; Trtík, T.^1

Faculty of Civil Engineering, CTU Prague, Thákurova 2077/7, Praha 6

166 29, Czech Republic^1

Faculty of Military Technology, University of Defence, Kounicova 65, Brno

662 10, Czech Republic^2

关键词: Concrete panels;    Contact explosion;    Different thickness;    Explosive charges;    Loadbearing structure;    Multi-layered;    Ultrasound measurement;    Ultrasound waves;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/596/1/012030/pdf
DOI  :  10.1088/1757-899X/596/1/012030

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

This paper compares blast resistance of multi-layered and single-layered concrete panels having different thickness and reinforcement and subjected to various explosive charges. The panels were analysed by ultrasound measurements before the application of blast loading; the velocity of transfer of ultrasound waves through the panels was determined. The same measurement was conducted after exposing the panels to contact explosion and the damage was evaluated based on the determined changes. Nine panels were tested, four of them single-layered and five of them multi-layered. The weights of Pentrite explosive charges were 150 g, 300 g and 500 g. The results show that multi-layered panels are suitable for the protection of soft targets or as cladding of load-bearing structures.