Modares Mechanical Engineering

Modares Mechanical Engineering

Dynamic response of circular metal sandwich panels with tubular cores under blast load

Document Type : Original Research

Authors
Mojtaba Ghamarizadeh 1
Hossein Khodarahmi 2
علی Mirzababaie Mostofi 3
1 PhD student, Department of Mechanical Engineering, Faculty of Engineering, Imam Hossein Comprehensive University, Tehran, Iran.**Instructor, Imam Hossein University For Training Officers & Guards, Tehran, Iran.
2 Professor, Department of Mechanical Engineering, Faculty of Engineering, Imam Hossein Comprehensive University, Tehran, Iran.
3 Assistant Professor, Department of Mechanical Engineering, Faculty of Mechanical Engineering, University of Eyvanekey, Eyvanekey, Iran.
Abstract
Sandwich panels which can be used as an explosion shield are important structures for absorbing explosion energy. Crushing and plastic deformation of the core with the plastic bending of the faces are the main factors in absorbing the explosion energy in this sandwich panel. Structural components undergo permanent deformation after explosion and energy absorption. In this paper, the energy absorption of the structure and the deformation of circular metal sandwich panels with tubular core under explosion load have been investigated analytically, numerically and experimentally. The tubes are arranged radially and symmetrically in the core constructions. The experiment have been performed by making sandwich panels under free blast load in order to evaluate and validate analytical and numerical results. The analytical solution is performed using the energy method by balancing the kinetic energy and the plastic work which is done by the different components of the sandwich panels. Numerical solution is performed in ABAQUS finite element software and the pressure function is generated by CONWEP method. The amount of energy absorbed by the structure and different parts of it is obtained. There is good agreement between the results in different ways.
Keywords
dynamic response
Explosion load
Sandwich Panels
Tube core

Subjects

[1] Yuen SC, Cunliffe G, du Plessis MC. Blast response of cladding sandwich panels with tubular cores. International Journal of Impact Engineering. 2017 Dec 1;110:266-78.
[2] Xia Z, Wang X, Fan H, Li Y, Jin F. Blast resistance of metallic tube-core sandwich panels. International Journal of Impact Engineering. 2016 Nov 1;97:10-28.
[3] Xiang XM, Lu G, Ma GW, Li XY, Shu DW. Blast response of sandwich beams with thin-walled tubes as core. Engineering Structures. 2016 Nov 15;127:40-8.
[4] Gharababaei H, Darvizeh A. Experimental and Analytical Investigation of Large Deformation of Thin Circular Plates Subjected to Localized and Uniform Impulsive Loading#. Mechanics based design of structures and machines. 2010 Apr 30;38(2):171-89.
[5] Theobald MD, Nurick GN. Experimental and numerical analysis of tube-core claddings under blast loads. International Journal of Impact Engineering. 2010 Mar 1;37(3):333-48.
[6] Guo Y, Zhuang Z, Li XY, Chen Z. An investigation of the combined size and rate effects on the mechanical responses of FCC metals. International Journal of Solids and Structures. 2007 Feb 1;44(3-4):1180-95.
[7] Theobald MD, Nurick GN. Numerical investigation of the response of sandwich-type panels using thin-walled tubes subject to blast loads. International Journal of Impact Engineering. 2007 Jan 1;34(1):134-56.
[8] Wierzbicki T, Sinmao MV. A simplified model of Brazier effect in plastic bending of cylindrical tubes. International Journal of Pressure Vessels and Piping. 1997 Apr 1;71(1):19-28.
[9] N. Jones, Structural impact. Cambridge: Cambridge University Press (1989).
[10] Kingery CN, Bulmash G. Airblast parameters from TNT spherical air burst and hemispherical surface burst. US Army Armament and Development Center, Ballistic Research Laboratory; 1984.
[11] Jones N. Impulsive loading of a simply supported circular rigid plastic plate. Journal of Applied Mechanics 1968; 35:59-65.
[12] Mostofi TM, Babaei H, Alitavoli M. Theoretical analysis on the effect of uniform and localized impulsive loading on the dynamic plastic behaviour of fully clamped thin quadrangular plates. Thin-Walled Structures. 2016 Dec 1;109:367-76.
[13] Mostofi TM, Babaei H, Alitavoli M, Lu G, Ruan D. Large transverse deformation of double-layered rectangular plates subjected to gas mixture detonation load. International Journal of Impact Engineering. 2019 Mar 1;125:93-106.
[14] Mostofi TM, Golbaf A, Mahmoudi A, Alitavoli M, Babaei H. Closed-form analytical analysis on the effect of coupled membrane and bending strains on the dynamic plastic behaviour of fully clamped thin quadrangular plates due to uniform and localized impulsive loading. Thin-Walled Structures. 2018 Feb 1;123:48-56.
[15] Rezasefat M, Mostofi TM, Ozbakkaloglu T. Repeated localized impulsive loading on monolithic and multi-layered metallic plates. Thin-Walled Structures. 2019 Nov 1;144:106332.
[16] Foroozan M.R, Hafshjani M, Jamshidian S. , Simulation of St12 guillotine section of steel sheet using Johnson-cook damage model, in Persian, 18th National Conference on Steel Symposium, 2016, Tehran, Iran(in Persian).
Modares Mechanical Engineering
Volume 21, Issue 10
October 2021
Pages 673-683