Izvorni znanstveni članak
Numerical simulations of an explosion confined inside a cylindrical pipe made of aluminium alloy Al6061-T6
Sina Amiri
; Politecnico di Milano, Department of Mechanical Engineering, Via la Masa 1, 20156 Milano, ITALY
Massimo Fossati
; Politecnico di Milano, Department of Mechanical Engineering, Via la Masa 1, 20156 Milano, ITALY
Andrea Manes
; Politecnico di Milano, Department of Mechanical Engineering, Via la Masa 1, 20156 Milano, ITALY
Marco Giglio
; Politecnico di Milano, Department of Mechanical Engineering, Via la Masa 1, 20156 Milano, ITALY
Sažetak
Simulation of the behaviour of structural components subjected to high explosive detonation is one of the current challenges in the field of numerical simulation. Along with experimental tests, numerical analysis is necessary to give an in-depth insight of this event, as well to reduce costs for some further experimental tests. High values of strain rate, temperature and pressure, together with failure phenomenon, govern the complex interaction between the explosion and the structure involved. In a scenario of this type, capabilities and performance of the numerical software used are crucial to the quality and the outcome of the simulation. Besides the simulation itself, this paper provides a comparison between different finite element programs such as ABAQUS, AUTODYN and LS-DYNA in an explosion event. In the event descibed in the paper, the behaviour of tube made of aluminium alloy Al6061-T6
and filled with explosive material is under investigation. A fully coupled Eulerian and Lagrangian formulation is used together with a complete mechanical behaviour and constitutive equations of all the materials involved in the simulation (aluminium alloy Al6061-T6, explosive C4, air). Finally, results and comparison between the mentioned numerical solvers will be reported and critically discussed.
Ključne riječi
explosive detonation; cylindrical pipe; numerical simulation; Al6061-T6; high strain rate
Hrčak ID:
184919
URI
Datum izdavanja:
23.1.2014.
Posjeta: 535 *