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Structural Engineering and Mechanics   Volume 48, Number 4, November25 2013, pages 569-585
DOI: https://doi.org/10.12989/sem.2013.48.4.569
 
Impact of a shock wave on a structure strengthened by rigid polyurethane foam
Sherif A. Mazek and Ashraf A. Mostafa

 
Abstract     [Buy Article]
    The use of the rigid polyurethane foam (RPF) to strengthen sandwich structures against blast terror has great interests from engineering experts in structural retrofitting. The aim of this study is to use the RPF to strengthen sandwich steel structure under blast load. The sandwich steel structure is assembled to study the RPF as structural retrofitting. The filed blast test is conducted. The finite element analysis (FEA) is also used to model the sandwich steel structure under shock wave. The sandwich steel structure performance is studied based on detonating different TNT explosive charges. There is a good agreement between the results obtained by both the field blast test and the numerical model. The RPF improves the sandwich steel structure performance under the blast wave propagation.
 
Key Words
    displacements; field blast test; finite element analysis; blast wave; sandwich steel structure; TNT explosive charge
 
Address
Sherif A. Mazek : Civil Engineering Department, Military Technical College, Kobbry El-Kobba, Khlifa El-Maamoon, Cairo, Egypt
Ashraf A. Mostafa : Egyptian Engineering Department, Cairo, Egypt
 

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