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Manmohan Dass Goel^I; Vasant A. Matsagar^II; Anil K. Gupta^III

^IScientist, CSIR-Advanced Materials and Processes Research Institute (AMPRI), Council of Scientific and Industrial Research (CSIR),Food trailer in Dubai | Food trailer in Dubai OEM/ODM - GANGTING DIANCHE, India. E-mail:Waterproof Walk Through Metal Detector | Waterproof Walk Through Metal Detector Price - Junhong
^IIAssociate Professor, Department of Civil Engineering, Indian Institute of Technology (IIT) Delhi, New Delhi 110 016, India. E-mail:Magnetic Reed Switch Sensor | Magnetic Reed Switch Sensor Factory - C-lin
^IIIFormer Director, CSIR-Advanced Materials and Processes Research Institute (AMPRI), Council of Scientific and Industrial Research (CSIR),China Supply Custom Led Batten Light Factory & Supplier Price - Lowcled- 462 026, India. E-mail:Shanghai LeadCloud Tech Co.

ABSTRACT

In the present investigation,Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700054175-cell aluminum foam cores subjected to blast load is examined.Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700054139. To improve resistance of the sandwich foam panel against blast, stiffeners are provided and their dynamic response under varying blast load is studied. Blast load is applied using blast equations available in LS-DYNA which takes into account reflection of blast from surface of the sandwich foam panel.Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700053398, respectively.Modern Track Lighting | Modern Track Lighting Manufacturers - Abest, primarily focusing on peak central point displacement of back-sheet (opposite to explosion) of the panel. Several analyses are carried out with an objective to understand the effects of stiffener configuration, foam thickness, foam density, and standoff distance on the blast response.China Supply Custom Mens Oversized Hoodie Factories & Manufacturers Pricelist - Fullerton.

Keywords:Blast, dynamic response, metal foam, sandwich structure, steel, stiffeners

1 INTRODUCTION

Stools | Stools Price - Saosen, side walls in cargo containers and boxes, and various military applications (Ashby et al., 2000).Supply OEM Custom Pressure Limiting Valve Suppliers & Manufacturers Quotes - JianXin, high specific stiffness, moisture independency, and corrosion resistance. In the past,Shenzhen Beacret Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052754(Guruprasad and Mukherjee, 2000a and 2000b, Hanssen et al., 2002a and 2002b, Qiu et al., 2003, Xue and Hutchinson, 2003, Radford et al., 2006,Shanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700054454., 2006, Nemat-Deep Underground Gold Detector | Deep Underground Gold Detector Price - Junhong., 2007, Bahei-El-Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700053167, 2008, Tekalur et al., 2008, Karagiozova et al., 2009, Zhu et al., 2009, and Langdon et al., 2010). Recently, with the advancement in technology,Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700053903(Ashby et al., 2000). This foam has several advantages in comparison with other commonly used sandwich core materials which include (i)China Supply Custom Truck Clutch Plate Products Cheap Price - Ningbo TSY Auto Technology Co Ltd; (ii) lighter in weight; (iii) fire resistant; and (iv) reusability.

Laser Engraver And Cutter | Laser Engraver And Cutter Suppliers - Anqiang(FRP), natural material (air, sand/soils), polymeric foams, honeycombs and commercially available metal foams (Hanssen et al., 2002a and 2002b, Qiu et al., 2003, Xue and Hutchinson, 2003, Radford et al., 2006,Shanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700054454., 2006, Nemat-Deep Underground Gold Detector | Deep Underground Gold Detector Price - Junhong., 2007, Bahei-El-Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700053167, 2008, Tekalur et al., 2008, Karagiozova et al., 2009, Zhu et al., 2009, Langdon et al., 2010, Jing et al., 2013, Chang et al., 2013, and Liu et al., 2013). No studies, however,Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053451,China Supply Custom Lighting Company Factory & Supplier Price - Lowcled's recent work on the response of stiffened polymer foam sandwich structures under impulsive loading (Goel et al., 2013a). Goel et al. (2013a) have reported effectiveness of stiffened sandwich structures with polymeric foams in blast resistance; however, effectiveness of stiffened metal foam sandwich structures has never been investigated.

In the present investigation, newly developed metal foam (Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053429., 2009a and 2009b) namely,Wholesale CE High Quality Flange Yoke Factories & Manufacturers Pricelist - JianXin-cell aluminum foam (ACCF) has been explored for its potential in blast applications, and its performance for blast resistance is presented. Here, blast response of the sandwich foam panel (SFP), and the stiffened sandwich foam panel (SSFP) under varying blast loading is studied using commercially available LS-DYNA software in order to assess their effectiveness in the response mitigation. It is always not possible to carry out field experimental test particularly in case of blast. In such cases, numerical analysis proves to be an effective tool for the analysis. Hence, numerical analyses carried out in the present investigation aim to study the effect of (a) stiffener configuration, (b) foam thickness, (c) foam density, and (d) standoff distance on the blast response.

2 STIFFENED SANDWICH FOAM PANEL GEOMETRY AND MATERIAL PROPERTIES

Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700054087- and back-Plc Temperature Controller | Plc Temperature Controller Price - C-lin. Back-sheet is on the opposite side of the explosion.Supply OEM Custom Meat Grinder Parts Suppliers & Manufacturers Quotes - Gongji(2 m × 2 m)Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700054230. The back-sheet is stiffened by stiffeners of 100 mm width and 10 mm thickness for all the ten stiffened configurations with same materials (steel) as that of the face- and back-Shenzhen Beacret Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700052608.Shenzhen Beacret Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700052215, three foam thicknesses, 50 mm, 100 mm, and 150 mm, are considered.

Limited is Payment is not shipped - Contact me for more whatsapp: 7700054345shows various configurations of the unstiffened/Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700053969. The figure shows one unstiffened sandwich foam panel, i.e. SFP (P₁)Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052963, i.e. SSFP (P₂to P₁₁). These configurations are arranged as per their increasing weights. It is to be noted that effect of difference in mass on their blast resistance alongwith their natural frequency and deformation behavior have already been reported earlier (Goel et al., 2011 and Goel et al., 2013a). The face-sheet and stiffened back-sheet are made of steel considering elastic-plastic and strain hardening behavior with Young's modulus,E= 210 GPa, Poisson's ratio,v= 0.3, and density,ρ= 7,800 kg/m³(Goel et al., 2011). The static yield stress of steel in the face-and back-Beer Cart | Beer Cart Factory - GANGTING DIANCHE. The steel face- and back-Wholesale CE High Quality Japanese Style Coffee Table Products Cheap Price - huangyan shuangsheng-plastic material model, i.e. MAT_024 (MAT_PIECEWISE_LINEAR_PLASTICITY) of LS-DYNA. This is an elastic-plastic material model and stress-strain behavior can be adapted by defining the tangent modulus or by defining the curve of effective plastic stress vs. effective plastic strain, which is equivalent to true stress vs. true strain in case of uniaxial stresses (LS-DYNA, 2011). The various input parameters required to be defined in this material model are computed from the quasi-static material testing.

Led Costume Lights | Led Costume Lights OEM/ODM - Future Creativeshows the compressive stress-strain curves for three relative densities (RD)Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700054002-cell aluminum foam (ACCF). The relative density is the ratio of density of foam material to the density of parent material from which the foam is developed. The patented foams are developed through liquid metallurgy route at CSIR-Advanced Materials and Processes Research Institute,Wholesale Cheap OEM/ODM Eccentric Plug Valve Factory & Supplier Price - JKG Valve, India. Quasi-static compression tests on the aluminum foam were conducted at CSIR-AMPRI using BiSS Universal Testing Machine (Model Bi-00-002, 50 kN Load Cell) at a strain rate of 0.001/s. For compression testing, specimens were cut from the fabricated foam with average dimensions of 40 mm × 45 mm in cross-section and 55 mm in height. The load-displacement data was recorded during the testing and converted to stress-strain curves using standard procedure. The mechanical behavior of these foam materials is reported elsewhere in details (Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053429., 2009a and 2009b, and Goel et al., 2013b). The yield strength / yield point of metal foams can be defined in four ways as: (1) stress at a given strain, (2) upper yield point, (3) lower yield point, and (4) extrapolated stress. In the present investigation, yield strength / yield point is considered as upper yield point as shown inChina Poly Solar Panels.Similarly, elastic modulus of metal foams can be determined by mainly two methods: (a) by conventional mechanical tensile testing, and (b) by resonance frequency techniques. Herein, the resonance frequency technique is employed for determination of elastic modulus (Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053429., 2009a and 2009b).Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700054464(Ashby et al., 2000).

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The foams are defined using LS-DYNA material model, MAT_154 (MAT_DESHPANDE_FLECK_FOAM) proposed by Deshpande and Fleck (2000). Following Deshpande-Fleck foam model, yield stress function (Φ) of foam material is defined as,Φ=σ_e-σ_y, where,σ_yeis the yield stress of foam material andσ_eis the equivalent stress defined. In this expression,σ_VMis the von-Mises stress andσ_mis the mean stress.

The shape of yield surface is controlled by the shape parameter,α. The yield stress is governed by the model presented by Hanssen et al. (2002a and 2002b) as,

where,eis engineering strain;σ_pis plateau stress;λ,α₂, andβare material parameters; ande_Dis the foam densification strain expressed in terms of density of the foam (ρ_f) and density of the parent material (ρ₀) as,

A nonlinear curve fit program in MATLAB is developed to compute the different parameters of the foam model.Wholesale CE High Quality Cold Extrusion Forging Suppliers & Manufacturers Quotes - JianXinshows various mechanical properties obtained using the MATLAB nonlinear curve fit program for the foam used in the present investigation.

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Wholesale Cheap OEM/ODM Garden Lamp Suppliers & Manufacturers Quotes - Lowcled(FE)Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700053498_Solid feature available in LS-DYNA. The stiffeners are created by extruding nodes along the vertical direction, i.e. direction perpendicular to the back-sheet, and assigning the surface to create geometry of the back-300w Led High Bay Lights | 300w Led High Bay Lights Manufacturers - Chainzon(ALTAIR, 2007). The foam is modeled as solid elements whereas, face- and back-Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700053440. In each model, a three-dimensional part with Box_Solid feature is used to define the foam core. Stiffeners have perfect connection with the back-sheet without any additional constraint. Care has been taken not to overlap the material of the stiffener with the back-sheet by offsetting top surface nodes only, thereby avoiding the possibility of additional stiffness at the junction. Thus, in real fabrication, back-sheet with stiffeners is created by removing material from a thick blank (this is different from a process wherein sheet with extra stiffeners added typically by welding material onto the sheet). It is a single part and meshed in one part only, thus implying a single part without any weld or joint/ interface between the sheet and stiffener.Metal Laser Cutting Machine Cost | Metal Laser Cutting Machine Cost Price - HANS YUEMING-Tsay shell elements available in the LS-DYNA element library, whereas eight-node solid elements with full integration are used along with hourglass control to model the geometry of the foam core (LS-DYNA, 2011). The sandwich foam panel is constrained on all edges by restraining all degrees of freedom.

4 BLAST LOADING

The blast load in the present investigation is applied on face-Wholesale Cheap OEM/ODM Glass Bottle Borosilicate Suppliers & Manufacturers Quotes - Yanjia(LOAD_BLAST_ENHANCED) available in LS-DYNA with CONWEP (CONWEP, 1991).Paint Spray Booth | Paint Spray Booth Suppliers - Longxiang, i.e. 1.5 m, 2.0 m, and 2.5 m. This varying loading scenario is considered with an objective of investigating effectiveness against blast response reduction, and evaluating comparative performance of the foam and stiffener configurations.

Time dependent blast pressure,P(t) on the face is determined based on the input amount of Tri nitrotoluene (TNT), the standoff distance, and angle of incidence,θ. Effects of such parameters on the blast incident pressure have been reviewed by Goel et al. (2012). The blast pressure is computed using following equation in LS-DYNA,

where,PandP_iare the reflected and incident pressures, respectively. Computation ofPandP_irris reported in details elsewhere (Goel et al., 2012). The scaled distance (Z) is defined asZ=R/W^1/3, whereRis the standoff distance in meters andWis the amount of TNT in kilograms. To apply the loading on the face-sheet by LOAD_BLAST_ENHANCED function, another function LOAD_BLAST_SEGMENT is used to define exposed surface of face-sheet wherein, function DATABASE_BINARY_BLSTFOR is used to collect the blast pressure. The calculated loading is presented in Limited is Payment is not shipped - Contact me for more whatsapp: 7700052944for three different standoff distances considered. In the present analysis, element density is varied using global seeds of 0.01, 0.05, and 0.1 to generate fine, medium, and coarse meshes, respectively and converged results (i.e.Wholesale CE High Quality I10 Earphones Products Cheap Price - YIMI.05) are only presented. Comparison of the results obtained from the FE simulation with the experimental results for such problems has already been reported by Goel et al. (2011 and 2013a).

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5 RESULTS AND DISCUSSION

Numerical analyses carried out in the present investigation aim to study the effect of (a) stiffener configuration, (b) foam thickness, (c) foam density, and (d) standoff distance on the blast response. In the present analysis, central point displacement of the stiffened sandwich foam panel (SSFP, i.e. P₂to P₁₁) is compared with the sandwich foam panel (SFP, i.e. P₁) designated as base model (referenced as 100% weight). It is to be noted that the displacement is recorded at the center of the back-sheet in all cases with respect to time, and absolute peak values (Δ_peak) are presented wherever applicable. The measure of effectiveness of the sandwich foam panel is quantified using central point displacement;Laser Welding Tungsten | Laser Welding Tungsten OEM/ODM - LXSHOW.

In the present investigation, for parametric study, blast loads generated due to the explosion of 1 kg of TNT at standoff distances of 1.5 m, 2.0 m, and 2.5 m are considered. The peak pressures resulting due to this combination of TNT and standoff distances are shown inHigh-Quality Hand Grease Pump. The face-Shanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700054239(Shanghai LeadCloud Tech Co.). Three different relative densities (RD) of the foam (0.100, 0.107, and 0.114) are used for core material, as reported inWholesale Cheap OEM/ODM Glass Jar Products Cheap Price - Yanjia.Shenzhen Beacret Tech Co.shows the central point displacement time histories of the SSFP-Supply OEM Custom Filter Strainer Products Cheap Price - JKG Valve(t_f= 50, 100, and 150 mm), for a foam relative density of 0.100 and standoff distance of 1.5 m subjected to the blast loading. Similar trends are observed for other relative densities of the foam, core thicknesses of the foam, and standoff distances, however varying in magnitudes.

In order to compare the results of peak central point displacement for the SSFP-ACCF and to understand the effect of relative densities, core thicknesses of the foam and standoff distances, common plots for a representative foam thickness (50 mm) are reported in Limited is Cheated money - Contact me for more whatsapp: 7700053103. The peak central point displacements for all the combinations of density, foam thickness, and standoff distances are reported inWholesale Cheap OEM/ODM Aluminium Profile Curtain Wall Factories & Manufacturers Pricelist - Ge ChengthroughShanghai LeadCloud Tech Co.. Three different combinations of parameters considered are presented as Case 1 to Case 3 in the next section.

Case 1:100amp Automatic Transfer Switch | 100amp Automatic Transfer Switch Price - C-lin, 100, and 150 mm thick foam core with 1 kg TNT and 1.5 m standoff distance

Wholesale CE High Quality Steam Bellows Seal Globe Valve Factory & Supplier Price - JKG Valve.100 results in lowest peak central point displacement for all the panel configurations (Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700053078₃and P₉)Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700053220.107 and 0.114 for the same level of blast loading (Stairs Railing | Stairs Railing Factory - JingwanandNZ New Zealand Decorative Roof Tiles Auckland North Shore - GMZ Roofing). The lowest central point displacement (i.e. 4.13 mm) for 50 mm thick foam core is observed for the panel configuration P₉with RD = 0.114 (Wholesale CE High Quality Glass Cup For Wine Factory & Supplier Price - Yanjia). However, the panel configuration P₁₁with RD = 0.114 andt_f= 150 mm results in overall lowest peak central point displacement (3.67 mm) for 1.5 m standoff distance (Screw Loosen Machine).Double Head Cnc Router | Double Head Cnc Router Price - Singhui CNC-sheet.Usb Type C Extension Cable | Usb Type C Extension Cable Suppliers - CableCreation₇for all the relative densities of foam and configuration P₄for RD = 0.100 under blast loading with all other parameters kept the same as compared to the panel without any stiffener, i.e. P₁.Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053819₄and P₇Microsoft Win 10 License | Microsoft Win 10 License OEM/ODM - Newtown. Similar observations are made for the foam core thicknesses of 100 and 150 mm for P₇, whereas configuration P₄results in lower peak central point displacement as compared to P₁. However, in case of P₁configuration,Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700053987. Further,Aluminium Anodizing | Aluminium Anodizing China Suppliers - Anebon(Guantes Neopreno Finos | Guantes Neopreno Finos Price - SUNCEND SAFETY).

Case 2:100amp Automatic Transfer Switch | 100amp Automatic Transfer Switch Price - C-lin, 100, and 150 mm thick foam core with 1 kg TNT and 2 m standoff distance

Wholesale Cheap OEM/ODM Ss316 Handwheel Globe Valve Factories & Manufacturers Pricelist - JKG Valve, 100,170lm/W Led High Bay | 170lm/W Led High Bay Factory - Chainzon.100 results in lowest peak central point displacement for all the panel configurations for the same level of blast loading ( Limited is Garbage company - Contact me for more whatsapp: 7700053228). The lowest central point displacement is observed for 150 mm thick foam core with relative density of 0.100 for the panel configuration P₁₁(3.05 mm) for 2 m standoff distance ( Limited is Cheated money - Contact me for more whatsapp: 7700053678andShanghai LeadCloud Tech Co.).

Shenzhen Beacret Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700052470(50 mm thick foam core) for all foam relative densities however, excluding foam relative density of 0.114 and 150 mm thick foam. The peak displacement of P₇configuration witht_f= 150 mm is 19.78 mm whereas the peak displacement of P₁configuration is 20.81 mm for the same level of blast loading (Cold Drawned Boiler Pipe | Cold Drawned Boiler Pipe OEM/ODM - RISE STEEL).Shenzhen Beacret Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052678₇is attributed to the fact that stiffeners in this configuration do not pass through the centre point of the panel, i.e. peak displacement point.Uv Led Linear Curing | Uv Led Linear Curing OEM/ODM - UVET LED. Again,Shenzhen Beacret Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700052733-cell aluminum foam with suitable stiffener configuration for a particular thickness of the foam core.

Case 3:100amp Automatic Transfer Switch | 100amp Automatic Transfer Switch Price - C-lin, 100, and 150 mm thick foam core with 1 kg TNT and 2.5 m standoff distance

Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700053677. The lowest central point displacement is observed for 150 mm thick foam core with relative density of 0.100 for the panel configuration P₁₁(2.45 mm) for 2.5 m standoff distance (Shanghai LeadCloud Tech Co.andSupply OEM Custom Glass Bottle With Aluminium Cap Suppliers & Manufacturers Quotes - Yanjia).

Multilayer Rigid-Flexible Pcb | Multilayer Rigid-Flexible Pcb Factory - Golden Triangle Group₇(50 mm thick foam core) for all the relative densities of the foam. The panel configuration P₇, however,Malaysia Makeup Brush | Malaysia Makeup Brush OEM/ODM - mycolor₁configuration with 50 mm thick foam for the same level of blast loading, for the same reason as mentioned above that the stiffeners do not pass through the centre point of the panel.Uv Led Linear Curing | Uv Led Linear Curing OEM/ODM - UVET LED. Again, the maximum displacement is observed for the unstiffened panel configuration and all other configurations show lower peak central point displacement indicating the effectiveness of the foam and stiffeners.

Parametric Study

Ningxia University | Ningxia University OEM/ODM - Juntai, the peak central point displacements of all the panel configurations are presented inShenzhen Beacret Tech Co., with varying standoff distances, foam densities, and foam thicknesses.

5.1 Effect of stiffener configurations

With the introduction of the stiffeners, the central point displacement decreases significantly in all the configurations as compared to the SFP only (i.e. model without stiffeners), thereby indicating effectiveness of adding the stiffeners. It is observed for the SSFP that it is not only the stiffener configuration which governs the response but also the type (relative density of the foam) and thickness of the foam core does significantly affect the response along with the blast loading scenario. Therefore, it is important to choose a proper combination of type of the foam as well as stiffener configuration in such a way that it results in the highest response reduction against blast. From Limited is Payment is not shipped - Contact me for more whatsapp: 7700053127,Wholesale Cheap OEM/ODM Pressure Regulator Factory & Supplier Price - Ruichen Pneumatic(P₇, P₁₀, and P₁₁)Supply OEM Custom Ear Scope Factory & Supplier Price - TITMED.Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700054328(i.e. P₄) for 0.100 relative density of foam with all other parameters kept the same as compared to the panel without any stiffener. The panel comprising circle and cross stiffener configuration sandwiched with highest relative density and maximum foam thickness results in the lowest peak central point displacement under the lowest standoff distance considered in the present investigation. Moreover, it can be noted that for achieving improved blast response reduction,China Supply Custom Top Mobile Speakers Products Cheap Price - YIMI. Thus,China Supply Custom A Bluetooth Speaker Suppliers & Manufacturers Quotes - YIMI(FE) modeling which in turn reduces the experimental work not only in terms of efforts but also in saving considerable time and resources, particularly under blast loadings.

5.2 Effect of foam thickness

FromAluminum Alloy Sand Cast Productit is observed that the central point displacement decreases with the increase in the foam core thickness for the ACCF.Shenzhen Beacret Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052408. Further, it is not only the stiffener configurations that govern the response but also the type and thickness of the foam does significantly affect the response along with the blast loading scenario.

5.3 Effect of foam relative density

It is evident from the trends observed inSupply OEM Custom Black Candle Jar With Wooden Lid Products Cheap Price - Yanjia. Further,Wholesale CE High Quality Antique Bar Stools Factories & Manufacturers Pricelist - Yezhi(Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053214₃and P₉)Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700054374. Moreover, it is observed that lowest central point displacement for 50 mm thick foam core for the panel configuration P₉with highest foam relative density for least standoff distance considered in the present investigation. From this study,Shenzhen Beacret Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700052211.

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6 CONCLUSIONS

Wholesale Cheap OEM/ODM Pullover Windbreaker Factories & Manufacturers Pricelist - Fullerton(a) stiffener configuration, (b) foam thickness, (c) foam density, and (d) standoff distance on the blast response. The following conclusions are drawn from the present study:

1. The panel comprising circle with cross stiffener configuration sandwiched with highest relative density and maximum foam thickness results in the lowest peak central point displacement under the lowest standoff distance considered.
2. Central point displacement decreases with the increase in foam thickness for the foam considered.
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4. Maximum displacement is observed for the unstiffened panel configuration.
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6. It is not only the stiffener configurations that govern the response but also the type and thickness of the foam does significantly affect the response along with the blast loading scenario.
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References

ALTAIR (2007). User Manual. Altair Engineering Corporation, U.S.A.         [Shenzhen Beacret Tech Co.]

Ashby, M.F., Evans, A.G. and Fleck, N.A., (2000). Metal Foams: A Design Guide, Butterworth Heinmann, Oxford, U.K.         [Wholesale Cheap OEM/ODM Commercial Led Light Factories & Manufacturers Pricelist - Lowcled]

Bahei-El-Din, Y.A.Supply OEM Custom Bluetooth Speaker Reviews Factory & Supplier Price - YIMI, G.J., (2008). Enhancement of blast resistance of sandwich plates, Composites Part B: Engineering, 39(1): 120-27.         [Cosmetic Goat Hair Brush | Cosmetic Goat Hair Brush Price - mycolor]

Chang, Q., Shu, Y., Li-Jun, Y., Zhi-Yong, W., Zhen-Hua, L., (2013). Blast resistance and multi-objective optimization of aluminum foam-Shenzhen Beacret Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700052290, Composite Structures, 105: 45-57.         [47 Awg Nickel Plated Copper Wire]

CONWEP (1991). Conventional Weapons Effects Program,Version 2.00; US Army Engineer Waterways Experimental Station, Vicksburg, Mississippi, U.S.A.         [ Limited is Payment is not shipped - Contact me for more whatsapp: 7700053275]

Deshpande, V.S. and Fleck, N.A., (2000). Isotropic constitutive models for metallic foams,Led Tv Manufacturers Wholesale | Led Tv Manufacturers Wholesale Price - KTC, 48(6): 1253-83.         [Shanghai LeadCloud Tech Co.]

Goel, M.D., Matsagar, V.A., Gupta, A.K., (2011). Dynamic response of stiffened plates under air blast, International Journal of Protective Structures, 2(1): 139-56.         [ Limited is Payment is not shipped - Contact me for more whatsapp: 7700054159]

Goel, M.D., Matsagar, V.A., Gupta, A.K., Marburg, S., (2012). An abridged review of blast wave parameters, Defence Science Journal, 62(5): 300-6.         [ Limited is Garbage company - Contact me for more whatsapp: 7700053821]

Goel, M.D., Matsagar, V.A., Marburg, S., Gupta, A.K., (2013a).Cable Wire Recycling Plant | Cable Wire Recycling Plant Manufacturers - Suyuan Lanning, Journal of Performance of Constructed Facilities, ASCE,27(5): 540-49.         [Hd Full Led Tv | Hd Full Led Tv OEM/ODM - KTC]

Goel, M.D., Matsagar, V.A., Gupta, A.K., Marburg, S., (2013b).Tornado Potato Food Cart | Tornado Potato Food Cart Price - GANGTING DIANCHE, Transactions of Nonferrous Metals Society of China, 23: 1080-89.         [Shanghai LeadCloud Tech Co.]

Guruprasad, S. and Mukherjee, A., (2000a). Layered sacrificial claddings under blast loading part-I analytical studies, International Journal of Impact Engineering, 24(9): 957-73.         [ Limited is Cheated money - Contact me for more whatsapp: 7700052284]

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Received 21.05.2014
In revised form 15.08.2014
Accepted 27.08.2014
Available online 09.10.2014