Optimization of protective panel for critical supporting elements

Abstract The improvement of blast resistance of supporting elements by application of protective cover is the main goal of this paper. Developed sandwich panel is very effective in blast protection, however, such solutions are sensitive to the design parameters including thickness of components, stiffness and strength of materials and panel lay-up. Therefore, a numerical optimization based on computational mechanics was implemented to reduce deformations of protected supporting structure caused by blast loading. Optimization was based on the simplified FE model which consisted of laminate parts, metallic foam, steel external cover and I-beam pillar. The model was automatically generated depending on the optimization variables using a developed pre-processor script. The delamination process was also taken into consideration. Dynamic response of structural components subjected to the blast wave in different cases was analysed. Obtained results clearly showed that application of the optimized blast panel reduces the plastic deformation of the structure and significantly increases the blast resistance. Moreover, the obtained parameters were verified using fully 3D FE model of protective panel with pillar with FSI interface.

[1]  J. Małachowski,et al.  Comparison of numerical testing methods in terms of impulse loading applied to structural elements , 2013 .

[2]  W. Van Paepegem,et al.  Blast performance of a sacrificial cladding with composite tubes for protection of civil engineering structures , 2014 .

[3]  Haydn N. G. Wadley,et al.  Response of metallic pyramidal lattice core sandwich panels to high intensity impulsive loading in air , 2011 .

[4]  G. Nurick,et al.  The air-blast response of sandwich panels with composite face sheets and polymer foam cores: Experiments and predictions , 2013 .

[5]  Srinivasan Arjun Tekalur,et al.  Blast resistance of polyurea based layered composite materials , 2008 .

[6]  Tadeusz Niezgoda,et al.  Analysis of a protective composite panel with energy adsorbent in the form of foamed aluminium , 2010 .

[7]  Genevieve Langdon,et al.  The response of sandwich structures with composite face sheets and polymer foam cores to air-blast loading: Preliminary experiments , 2012 .

[8]  Guoyin Zu,et al.  Performance of aluminum foam–steel panel sandwich composites subjected to blast loading , 2013 .

[9]  Arun Shukla,et al.  Mechanical behavior and damage evolution in E-glass vinyl ester and carbon composites subjected to static and blast loads , 2008 .

[10]  Genevieve Langdon,et al.  Response of GLARE© panels to blast loading , 2009 .

[11]  G. Nurick,et al.  The influence of core density on the blast resistance of foam-based sandwich structures , 2012 .

[12]  Charles E. Anderson,et al.  Mine blast loading experiments , 2011 .

[13]  Genevieve Langdon,et al.  Large inelastic response of unbonded metallic foam and honeycomb core sandwich panels to blast loading , 2010 .

[14]  Paweł Baranowski,et al.  SPLIT HOPKINSON PRESSURE BAR IMPULSE EXPERIMENTAL MEASUREMENT WITH NUMERICAL VALIDATION , 2014 .

[16]  Hong Hao,et al.  Experimental investigations and numerical simulations of multi-arch double-layered panels under uniform impulsive loadings , 2014 .

[17]  Wesley J. Cantwell,et al.  The quasi-static and blast loading response of lattice structures , 2008 .

[18]  Tadeusz Niezgoda,et al.  INFLUENCE OF ARMOURED VEHICLE'S BOTTOM SHAPE ON THE PRESSURE IMPULSE , 2011 .

[19]  Patrick F. Acosta,et al.  OVERVIEW OF UFC 3-340-02, STRUCTURES TO RESIST THE EFFECTS OF ACCIDENTAL EXPLOSIONS , 2011 .

[20]  Luke A. Louca,et al.  Energy absorbing passive impact barrier for profiled blastwalls , 2005 .

[21]  K. Kowal-Michalska,et al.  Influence of blast pressure modeling on the dynamic response of conical and hemispherical shells , 2011 .

[22]  Krzysztof Damaziak,et al.  Load carrying capacity numerical study of I-beam pillar structure with blast protective panel , 2013 .

[23]  J. P. Dear,et al.  The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures , 2012 .

[24]  Hong Hao,et al.  Parametric study of laminated glass window response to blast loads , 2013 .

[25]  Kazunori Fujikake,et al.  Damage of reinforced concrete columns under demolition blasting , 2013 .

[26]  Graham Schleyer,et al.  Inelastic deformation and failure of profiled stainless steel blast wall panels. Part I: experimental investigations , 2005 .

[27]  Lin Jing,et al.  An experimental study of the dynamic response of cylindrical sandwich shells with metallic foam cores subjected to blast loading , 2014 .

[28]  A. Shukla,et al.  Blast Performance of Sandwich Composites with In-Plane Compressive Loading , 2012 .

[29]  A. Shukla,et al.  Response of E-glass/vinyl ester composite panels to underwater explosive loading: Effects of laminate modifications , 2011 .

[30]  Hui Zhang,et al.  Numerical and theoretical studies on energy absorption of three-panel angle elements , 2012 .

[31]  Marian Klasztorny,et al.  NUMERICAL MODELLING, SIMULATION AND VALIDATION OF THE SPS AND PS SYSTEMS UNDER 6 KG TNT BLAST SHOCK WAVE , 2012 .

[32]  Haydn N. G. Wadley,et al.  Analysis and interpretation of a test for characterizing the response of sandwich panels to water blast , 2007 .

[33]  Luke A. Louca,et al.  On the dynamic response of sandwich panels with different core set-ups subject to global and local blast loads , 2011 .

[34]  Constantinos Soutis,et al.  Modelling the structural response of GLARE panels to blast load , 2011 .

[35]  Ram Ranjan Sahu,et al.  Blast diffusion by different shapes of vehicle hull / Araç Gövdesinin Farklı Şekiller Tarafından Olan Patlama Dağıtımı , 2013 .