Original title: Explosive Shapes in Smoothed-Particle Hydrodynamics (SPH) Method for Structural Analysis of Concrete Members
Authors: Jindra, Daniel ; Hradil, Petr ; Kala, Jiří
Document type: Papers
Language: eng
Publisher: Vysoké učení technické v Brně,Fakulta stavební
Abstract: The study compares performances of numerical finite element (FEM) analyses of simply supported concrete slabs reinforced by BFRP bars (basalt fibre reinforced polymer) exposed to close-range (1 m distance) explosions. A sensitivity study of slab deflection and reinforcement strain on various shapes of TNT charges is conducted. Smoothed-particle hydrodynamics (SPH) method is used to model the geometry of the TNT charges (variously rotated cylinders, cubes and spheres), detonation and interaction with the concrete slab, which is modelled by Lagrangian mesh. Karagozian and Case (K&C) nonlinear material model is used for concrete slabs exposed to high-velocity impact load. Finite element analyses have been conducted in explicit solvers suitable for high strain rates. The results of numerical simulations are compared with physical experiment data obtained from the scientific literature.
Keywords: Blast loading; concrete slab; explicit numerical analysis; smoothed-particle hydrodynamics (SPH)
Host item entry: Juniorstav 2024: Proceedings 26th International Scientific Conference Of Civil Engineering, ISBN 978-80-86433-83-7

Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: https://hdl.handle.net/11012/245417

Permalink: http://www.nusl.cz/ntk/nusl-614330


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