Effectiveness of advanced coating systems for mitigating blast effects on steel components

Building protection on our century is very important because of the terrorist attacks. The old buildings in Europe aren’t enough strong again blast loads. Nowadays we know many different explosives and theirs effects of walls and human bodies. The detonation caused blast effect provokes building damage and fragmentation effects. The explosion caused damages, parts of bricks and fragments produce other secondary damage in other buildings and human bodies.It can’t protect the historical and old buildings by new walls and fences because of the cityscape. It needs to find new possibilities to improve the buildings resistance again blast effects. It needs a effectively thin and strong materials to reinforced the buildings walls. The new materials innovated by material science can be good solution for this project. These materials usually composites likes syntactic foams, spherical shells or carbon fields reinforced composites.

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Blast Effects

Encyclopedia of Clinical Neuropsychology ◽

10.1007/978-3-319-57111-9_9230 ◽

2018 ◽

pp. 582-582

Author(s):

Kayla LaRosa

Keyword(s):

Blast Effects

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Numerical Simulation of Blast Effects on Fibre Grout Strengthened RC Panels

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.755.18 ◽

2017 ◽

Vol 755 ◽

pp. 18-30

Author(s):

Corneliu Cismaşiu ◽

Hugo Bento Rebelo ◽

Válter J.G. Lúcio ◽

Manuel T.M.S. Gonçalves ◽

Gabriel J. Gomes ◽

...

Keyword(s):

Numerical Simulation ◽

Numerical Model ◽

High Speed ◽

Numerical Models ◽

Blast Load ◽

Measurement Equipment ◽

Speed Measurement ◽

Experimental Campaign ◽

Blast Effects ◽

Applied Element Method

The present paper aims to examine the potential of the Applied Element Method (AEM) in simulating the blast effects in RC panels. The numerical estimates are compared with the results obtained in an experimental campaign designed to investigate the effectiveness of fibre grout for strengthening full scale RC panels by comparing the effects that a similar blast load produces in a reference and the strengthened panel. First, a numerical model of the reference specimen was created in the software Extreme Loading for Structures and calibrated to match the experimental results. With no further calibration, the fibre reinforced grout strengthening was added and the resulting numerical model subjected to the same blast load. The experimental blast effects on both reference and strengthened panels, despite the lack of high speed measurement equipment (pressure, strains and displacements sensors), compare well with the numerical estimates in terms of residual and maximum displacements, showing that, once calibrated, the AEM numerical models can be successfully used to simulate blast effects in RC panels.

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Numerical Analysis of Shockwave Propagation in Urban Underpass

International Journal of Nonlinear Sciences and Numerical Simulation ◽

10.1515/ijnsns.2011.143 ◽

2012 ◽

Vol 13 (2) ◽

pp. 201-207

Author(s):

Xin Li ◽

Zhihua Wang ◽

Guiying Wu

Keyword(s):

Numerical Simulation ◽

Numerical Analysis ◽

Traffic Congestion ◽

Traffic Accidents ◽

Peak Pressure ◽

Near Field ◽

Horizontal Direction ◽

Pressure Distributions ◽

Blast Effects ◽

Potential Damage

Abstract As an indispensable part of transportation system, urban underpass can alleviate traffic congestion and reduce traffic accidents effectively. In order to acquaint the hydrodynamics of shockwave in underpass and assess the potential damage and risk of bombing accidents, a numerical simulation was established to calculate the blast effects originating from the 13Kg TNT. Based on the location of detonation point, the shape of corridor section and the exit's cover, peak pressure distributions were predicted. The results indicate that the propagation of shockwave in horizontal direction switches to the inclined top of ground in a near-field due to the ground reflection and the set of exit's cover increases the risk of explosion to the structure and the users.

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