Numerical investigation of a new structural configuration of a concrete barrier wall under the effect of blast loads
Subject Areas : Structural Mechanics
Ahmed K.
Taha
1
(School of Transportation Science and Engineering,
Beihang University (Beijing University
of Aeronautics and Astronautics), Beijing 100191,
People’s Republic of China)
Zhengguo
Gao
2
(School of Transportation Science and Engineering,
Beihang University (Beijing University
of Aeronautics and Astronautics), Beijing 100191,
People’s Republic of China)
Dahai
Huang
3
(School of Transportation Science and Engineering,
Beihang University (Beijing University
of Aeronautics and Astronautics), Beijing 100191,
People’s Republic of China)
M. S.
Zahran
4
(Department of Civil Engineering, Military Technical
College, cairo, Egypt)
Keywords: Concrete · Explosion · Composition B · Wall barrier · Numerical simulation · Blast wave,
Abstract :
AbstractIn this study, a non-linear three-dimensional hydrocode numerical simulation was carried out using AUTODYN-3D, whichis an extensive code dealing with explosion problems. A high explosive material (comp-B) is blasted against several concretewall barriers. The model was first validated using referenced experimental tests and has shown good results. Several numericalmodels were carried out to study the effect of changing the shape of wall barrier from flat to convex curve and concavecurve, and also investigated the effect of changing the angle of curvature. The results showed that changing the shape of awall barrier from flat to convex curve has the best performance in mitigating the effect of blast waves. It is also concludedthat convex walls with 60° angle of curvature have the best performance compared to other barrier walls.