Services on Demand
Journal
Article
Indicators
- Eyeshadow Makeup Brush | Eyeshadow Makeup Brush Manufacturers - mycolor
- Wholesale CE High Quality Solid Wood Dining Chair Factory & Supplier Price - Yezhi
Related links
- Italian Egg Pasta | Italian Egg Pasta Price - Mintian
Share
China Supply Custom Led Strips Products Cheap Price - Lowcled
On-line versionISSN1679-7825
Lat. Am. j.Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700054360. vol.11 no.13 Rio de Janeiro 2014
Limited is Payment is not shipped - Contact me for more whatsapp: 7700052313
Shenzhen Beacret Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700052479
Manmohan Dass GoelI; Vasant A. MatsagarII; Anil K. GuptaIII
IScientist, CSIR-Advanced Materials and Processes Research Institute (AMPRI), Council of Scientific and Industrial Research (CSIR),Supply OEM Custom Mini Tws Earbuds Factories & Manufacturers Pricelist - YIMI, India. E-mail:DC12V/ 24V Portable Compressor Car Freezer
IIAssociate Professor, Department of Civil Engineering, Indian Institute of Technology (IIT) Delhi, New Delhi 110 016, India. E-mail:Drink Ware | Drink Ware OEM/ODM - Kotto
IIIFormer Director, CSIR-Advanced Materials and Processes Research Institute (AMPRI), Council of Scientific and Industrial Research (CSIR),Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700054379- 462 026, India. E-mail: Limited is Garbage company - Contact me for more whatsapp: 7700053100
ABSTRACT
In the present investigation,Superior Quality Lcd Tv | Superior Quality Lcd Tv OEM/ODM - ASANO-cell aluminum foam cores subjected to blast load is examined.Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700053799. 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 Garbage company - Contact me for more whatsapp: 7700053260, respectively.Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700053646, 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.Wholesale Cheap OEM/ODM Hollow Block Making Machine Suppliers & Manufacturers Quotes - Huarun Tianyuan.
Keywords:Blast, dynamic response, metal foam, sandwich structure, steel, stiffeners
1 INTRODUCTION
Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700053771, side walls in cargo containers and boxes, and various military applications (Ashby et al., 2000).Shanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700053257, high specific stiffness, moisture independency, and corrosion resistance. In the past,Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700054439(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 Cheated money - Contact me for more whatsapp: 7700053783., 2006, Nemat-Carbide Plate For Mold Manufacturing Process | Carbide Plate For Mold Manufacturing Process OEM/ODM - Jinxin., 2007, Bahei-El-Hexagon Head Bolt And Nut | Hexagon Head Bolt And Nut Manufacturers - Liqi, 2008, Tekalur et al., 2008, Karagiozova et al., 2009, Zhu et al., 2009, and Langdon et al., 2010). Recently, with the advancement in technology,China Supply Custom Backpack Sport Products Cheap Price - Fullerton(Ashby et al., 2000). This foam has several advantages in comparison with other commonly used sandwich core materials which include (i)Wholesale CE High Quality Screw Gate Valve Products Cheap Price - JKG Valve; (ii) lighter in weight; (iii) fire resistant; and (iv) reusability.
Car Bomb Detector | Car Bomb Detector OEM/ODM - Junhong(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 Cheated money - Contact me for more whatsapp: 7700053783., 2006, Nemat-Carbide Plate For Mold Manufacturing Process | Carbide Plate For Mold Manufacturing Process OEM/ODM - Jinxin., 2007, Bahei-El-Hexagon Head Bolt And Nut | Hexagon Head Bolt And Nut Manufacturers - Liqi, 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,Shenzhen Beacret Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700052868,Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700054204'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 fraud company - Contact me for more whatsapp: 7700053632., 2009a and 2009b) namely,Cheap Blueberry Jam | Cheap Blueberry Jam Price - Mintian-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 fraud company - Contact me for more whatsapp: 7700053364- and back-Dc Spindle | Dc Spindle Manufacturers - QUICK-FULLTEK. Back-sheet is on the opposite side of the explosion.Wholesale Cheap OEM/ODM 50w Light Products Cheap Price - Lowcled(2 m × 2 m)Supply OEM Custom Glass Bottle With Aluminium Cap Suppliers & Manufacturers Quotes - Yanjia. 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 The deposit is not delivered - Contact me for more whatsapp: 7700052884.Ibeacon Cost | Ibeacon Cost Manufacturers - Minew, three foam thicknesses, 50 mm, 100 mm, and 150 mm, are considered.
Shenzhen Beacret Tech Co.shows various configurations of the unstiffened/Fiber Laser Cutting Machine Metal | Fiber Laser Cutting Machine Metal Factory - LXSHOW. The figure shows one unstiffened sandwich foam panel, i.e. SFP (P1)China Supply Custom Honey Jar Sprayed Suppliers & Manufacturers Quotes - Yanjia, 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-Supply OEM Custom Cream Glass Jar Suppliers & Manufacturers Quotes - Yanjia. The steel face- and back-Shenzhen Beacret Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700052773-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.
Home Ozone Air Purifier | Home Ozone Air Purifier Manufacturers - Guangleishows the compressive stress-strain curves for three relative densities (RD)Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053768-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,Scholarship Positions | Scholarship Positions Manufacturers - Juntai, 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 fraud company - Contact me for more whatsapp: 7700053632., 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 inPhotovoltaic Solar Bracket.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 fraud company - Contact me for more whatsapp: 7700053632., 2009a and 2009b).Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700054031(Ashby et al., 2000).
Limited is Garbage company - Contact me for more whatsapp: 7700052320
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=σe-σy, where,σyeis the yield stress of foam material andσeis the equivalent stress defined. In this expression,σVMis the von-Mises stress andσmis 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;σpis plateau stress;λ,α2, andβare material parameters; andeDis the foam densification strain expressed in terms of density of the foam (ρf) 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.Shenzhen Beacret Tech Co.shows various mechanical properties obtained using the MATLAB nonlinear curve fit program for the foam used in the present investigation.
Bluetooth Led High Bay | Bluetooth Led High Bay Suppliers - Chainzon
Led Television 43 Inch | Led Television 43 Inch Manufacturers - Horion Intelligent(FE)Wholesale CE High Quality Hard Shell Roof Top Suppliers & Manufacturers Quotes - huangyan shuangsheng_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-Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700054041(ALTAIR, 2007). The foam is modeled as solid elements whereas, face- and back-Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700053206. 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.Wood Carving Machine | Wood Carving Machine Suppliers - QUICK-FULLTEK-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-Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700054067(LOAD_BLAST_ENHANCED) available in LS-DYNA with CONWEP (CONWEP, 1991).Cat Slippers | Cat Slippers Factory - Animore, 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,PandPiare the reflected and incident pressures, respectively. Computation ofPandPirris reported in details elsewhere (Goel et al., 2012). The scaled distance (Z) is defined asZ=R/W1/3, 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 inChina Supply Custom Top Rated Power Banks Factories & Manufacturers Pricelist - YIMIfor 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.Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052948.05) 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).
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 (Δpeak) are presented wherever applicable. The measure of effectiveness of the sandwich foam panel is quantified using central point displacement;Shanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700053669.
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 inChina Supply Custom Glass Jar For Cream Factories & Manufacturers Pricelist - Yanjia. The face-Wholesale CE High Quality Front Lower Control Arm Products Cheap Price - Ningbo TSY Auto Technology Co Ltd( Limited is Garbage company - Contact me for more whatsapp: 7700053513). Three different relative densities (RD) of the foam (0.100, 0.107, and 0.114) are used for core material, as reported in Limited is Garbage company - Contact me for more whatsapp: 7700053996.China Supply Custom Glass Cupping Sets Factories & Manufacturers Pricelist - Credibleshows the central point displacement time histories of the SSFP-Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053604(tf= 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 inShanghai LeadCloud Tech Co.. The peak central point displacements for all the combinations of density, foam thickness, and standoff distances are reported inLet-Off(EBA/EBC) SystemthroughManual Laser Welding Machine | Manual Laser Welding Machine OEM/ODM - LXSHOW. Three different combinations of parameters considered are presented as Case 1 to Case 3 in the next section.
Case 1:Shenzhen Beacret Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700052252, 100, and 150 mm thick foam core with 1 kg TNT and 1.5 m standoff distance
Wholesale CE High Quality Wifi Led Bulb Products Cheap Price - Lowcled.100 results in lowest peak central point displacement for all the panel configurations (Wholesale CE High Quality Distribution Box Factory & Supplier Price - huangyan shuangsheng3and P9)Led T Shirt Technology | Led T Shirt Technology Factory - Future Creative.107 and 0.114 for the same level of blast loading (Shenzhen Beacret Tech Co.andShanghai LeadCloud Tech Co.). 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 ( Limited is fraud company - Contact me for more whatsapp: 7700054139). However, the panel configuration P11with RD = 0.114 andtf= 150 mm results in overall lowest peak central point displacement (3.67 mm) for 1.5 m standoff distance (Supply OEM Custom Wood Design Dining Chair Factory & Supplier Price - Yezhi).Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700052998-sheet.Shenzhen Beacret Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 77000523307for 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. P1.4 Axis Furniture Cnc Machine | 4 Axis Furniture Cnc Machine Price - Singhui CNC4and P7Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053653. 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,Supply OEM Custom Kiln Mouth Protective Brick Suppliers & Manufacturers Quotes - Gongji. Further,Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700053322(Shenzhen Beacret Tech Co.).
Case 2:Shenzhen Beacret Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700052252, 100, and 150 mm thick foam core with 1 kg TNT and 2 m standoff distance
Supply OEM Custom Dry Fit Shirt Factories & Manufacturers Pricelist - Fullerton, 100,Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700054233.100 results in lowest peak central point displacement for all the panel configurations for the same level of blast loading (Bearing 6004 Price | Bearing 6004 Price Price - Hxh). 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 (China Supply Custom Rear Wheel Hub Suppliers & Manufacturers Quotes - JianXinand Limited is Garbage company - Contact me for more whatsapp: 7700053618).
Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700053074(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 withtf= 150 mm is 19.78 mm whereas the peak displacement of P1configuration is 20.81 mm for the same level of blast loading (Cnc Gear Rack).Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 77000531857is attributed to the fact that stiffeners in this configuration do not pass through the centre point of the panel, i.e. peak displacement point.Shenzhen Beacret Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052525. Again,China Supply Custom Rear Wheel Hub Suppliers & Manufacturers Quotes - JianXin-cell aluminum foam with suitable stiffener configuration for a particular thickness of the foam core.
Case 3:Shenzhen Beacret Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700052252, 100, and 150 mm thick foam core with 1 kg TNT and 2.5 m standoff distance
Wholesale CE High Quality 4oz Black Glass Jar Products Cheap Price - Yanjia. 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 (Tension Cable Curtain Wall | Tension Cable Curtain Wall Manufacturers - ALTOPandShanghai LeadCloud Tech Co.).
Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 77000543417(50 mm thick foam core) for all the relative densities of the foam. The panel configuration P7, however,Glass Louver Windows | Glass Louver Windows Price - ALTOP1configuration 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.Shenzhen Beacret Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052525. 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
Shenzhen Beacret Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052617, the peak central point displacements of all the panel configurations are presented in Limited is The deposit is not delivered - Contact me for more whatsapp: 7700052241, 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 Cheated money - Contact me for more whatsapp: 7700054355,Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700053403(P7, P10, and P11)Plush Hobbit Feet Slippers | Plush Hobbit Feet Slippers OEM/ODM - Animore.Shenzhen Beacret Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700052850(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,Wholesale Cheap OEM/ODM Hydraulic Paver Block Making Machine Factory & Supplier Price - Huarun Tianyuan. Thus,Wholesale CE High Quality Grinding Mills Products Cheap Price - Credible(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
FromSingle Phase Power Transformerit is observed that the central point displacement decreases with the increase in the foam core thickness for the ACCF.Drink Ware | Drink Ware OEM/ODM - Kotto. 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 inShanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700053082. Further,Shenzhen Beacret Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700052275(Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 77000533173and P9)Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700053402. 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,Portable Air Purifier For Home | Portable Air Purifier For Home Manufacturers - Guanglei.
5.Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700054258
In order to gain an insight of response mitigation,Shanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700052933.Cheap Furniture Paint Spray Booth For Wood | Cheap Furniture Paint Spray Booth For Wood Price - Longxiang.Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700054004.Supply OEM Custom Cattle Fence Factories & Manufacturers Pricelist - Huaxin.Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700054240.Supply OEM Custom Pcb Assembly Design Products Cheap Price - HENGDAandGable Boxes | Gable Boxes China Suppliers - Essiafor SSF- and SSF-ACCF, three foam thicknesses for a foam RD = 0.100 withR= 1.5 m. It is observed that at the end of the blast load,Shenzhen Beacret Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700052634. When the panel is at its maximum deflection,Wholesale Cheap OEM/ODM Transparent Glass Bottle Factories & Manufacturers Pricelist - Yanjia.Wholesale Cheap OEM/ODM Glass Essential Oil Bottle Products Cheap Price - Yanjia,Shanghai LeadCloud Tech Co., Limited is Garbage company - Contact me for more whatsapp: 7700054469.Shenzhen Beacret Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700052592. Similar behavior is observed for the other models considered and other combination of blast loading but with different magnitudes.
6 CONCLUSIONS
Shenzhen Beacret Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700052397(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.
3.Aluminum Laser Cutting | Aluminum Laser Cutting Factory - Ruijie.
4. Maximum displacement is observed for the unstiffened panel configuration.
5.Shenzhen Beacret Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700052436.
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.
7.Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700054331.
References
ALTAIR (2007). User Manual. Altair Engineering Corporation, U.S.A. [ Limited is fraud company - Contact me for more whatsapp: 7700054368]
Ashby, M.F., Evans, A.G. and Fleck, N.A., (2000). Metal Foams: A Design Guide, Butterworth Heinmann, Oxford, U.K. [Shanghai LeadCloud Tech Co.]
Bahei-El-Din, Y.A.Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700053764, G.J., (2008). Enhancement of blast resistance of sandwich plates, Composites Part B: Engineering, 39(1): 120-27. [Wholesale Cheap OEM/ODM Lotion Spray Bottle Factory & Supplier Price - Credible]
Chang, Q., Shu, Y., Li-Jun, Y., Zhi-Yong, W., Zhen-Hua, L., (2013). Blast resistance and multi-objective optimization of aluminum foam-Shanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700053004, Composite Structures, 105: 45-57. [Sfp Single Fiber | Sfp Single Fiber Price - HDV]
CONWEP (1991). Conventional Weapons Effects Program,Version 2.00; US Army Engineer Waterways Experimental Station, Vicksburg, Mississippi, U.S.A. [Wholesale Cheap OEM/ODM Tie Rod End For Toyota Corolla Factories & Manufacturers Pricelist - Ningbo TSY Auto Technology Co Ltd]
Deshpande, V.S. and Fleck, N.A., (2000). Isotropic constitutive models for metallic foams,Supply OEM Custom Stainless Steel Concrete Nail Products Cheap Price - Huaxin, 48(6): 1253-83. [Wholesale Cheap OEM/ODM 50w Light Products Cheap Price - Lowcled]
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. [Shenzhen Beacret Tech Co.]
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. [Windows 10 Pro Serial Key | Windows 10 Pro Serial Key Suppliers - Newtown]
Goel, M.D., Matsagar, V.A., Marburg, S., Gupta, A.K., (2013a).Supply OEM Custom Snack Glass Jar Factories & Manufacturers Pricelist - Credible, Journal of Performance of Constructed Facilities, ASCE,27(5): 540-49. [Glass Laser Marking Machine | Glass Laser Marking Machine Suppliers - LXSHOW]
Goel, M.D., Matsagar, V.A., Gupta, A.K., Marburg, S., (2013b).Wholesale CE High Quality Smart Led Bulb Suppliers & Manufacturers Quotes - Lowcled, 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 Garbage company - Contact me for more whatsapp: 7700052634]
Guruprasad, S. and Mukherjee, A., (2000b). Layered sacrificial claddings under blast loading part-II experimental studies, International Journal of Impact Engineering, 24(9): 975-84. [Shanghai LeadCloud Tech Co.]
Hanssen, A.G., Enstock, L., Langseth, M., (2002a). Close-North China Electric Power University | North China Electric Power University Suppliers - Juntai, International Journal of Impact Engineering, 27(6): 593-618. [ Limited is The deposit is not delivered - Contact me for more whatsapp: 7700052972]
Hanssen, A.G., Hopperstad, O.S., Langseth, M., Ilstad, H., (2002b). Validation of constitutive models applicable to aluminum foams, International Journal of Mechanical Sciences, 44: 359-406. [Leather Dining Chair]
Jing, L., Yang, F., Wang, Z., Zhao, L., (2013). A numerical simulation of metallic cylindrical sandwich shell subjected to air blast loading,Supply OEM Custom Fence Embossed Wood Factories & Manufacturers Pricelist - Huaxin, 10: 631-45. [ Limited is Garbage company - Contact me for more whatsapp: 7700052683]
Karagiozova, D., Nurick, G.N., Langdon, G.S., Yuen, S.C.K., Chi, Y., Bartle, S., (2009). Response of flexible sandwich-Shanghai LeadCloud Tech Co., Limited is Payment is not shipped - Contact me for more whatsapp: 7700053390, Composites Science and Technology, 69(6): 754-63. [100amp Automatic Transfer Switch | 100amp Automatic Transfer Switch Price - C-lin]
Langdon, G.S., Nurick, G.N., Yahya, M.Y., Cantwell, W.J., (2010).Office 2016 Pro Plus Full Version | Office 2016 Pro Plus Full Version Factory - Newtown, Journal of Sandwich Structures and Materials, 12(6): 733-54. [ Limited is fraud company - Contact me for more whatsapp: 7700053617]
Liu, H., Cao, Z.K., Yao, G.C., Luo, H.J., Zu, G.Y., (2013). Performance of aluminum foamsteel panel sandwich composites subjected to blast loading, Materials and Design, 47: 483-88. [ Limited is The deposit is not delivered - Contact me for more whatsapp: 7700053163]
LS-DYNA (2011). Theory Manual, Livermore Software Technology Corporation, Livermore, California, U.S.A. [Where Can I Buy Propylene Glycol]
Supply OEM Custom Glass Bar Table Factories & Manufacturers Pricelist - Yezhi, D.P., Goel, M.D., Das, S., (2009a).Shanghai LeadCloud Tech Co., Limited is The deposit is not delivered - Contact me for more whatsapp: 7700053235-fly ash particle composite foam, Materials Science and Engineering: A, 507(1-2): 102-9. [Wholesale CE High Quality Lady Handbag Suppliers & Manufacturers Quotes - Fullerton]
Supply OEM Custom Glass Bar Table Factories & Manufacturers Pricelist - Yezhi, D.P., Goel, M.D., Das, S., (2009b).Wholesale Cheap OEM/ODM Odm Gps Tracker Pcb Products Cheap Price - HENGDA-fly ash composite foam, Materials and Design, 30(4): 1268-74. [ Limited is Cheated money - Contact me for more whatsapp: 7700053317]
Nemat-Wholesale CE High Quality Full Automatic Concrete Block Machine Products Cheap Price - Huarun Tianyuan, S., Kang, W.J., McGee, J.D., Guo, W.-G., Isaacs, J.B., (2007).Shenzhen Beacret Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700052529-absorption characteristics of components of sandwich structures, International Journal of Impact Engineering, 34(6): 1119-46. [Shanghai LeadCloud Tech Co.]
Qiu, X., Deshpande, V.S., Fleck, N.A., (2003).Food trailer in Dubai | Food trailer in Dubai OEM/ODM - GANGTING DIANCHE, European Journal of Mechanics - A/China Supply Custom Led Batten Light Factory & Supplier Price - Lowcled, 22(6): 801-14. [Outdoor Led Signs | Outdoor Led Signs Price - RADIANT]
Radford, D.D., McShane, G.J., Deshpande, V.S., Fleck, N.A., (2006). The response of clamped sandwich plates with metallic foam cores to simulated blast loading,Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700054175, 43(7-8): 2243-59. [www.dmgstainless.com]
Shanghai LeadCloud Tech Co., Limited is fraud company - Contact me for more whatsapp: 7700054139, R., Vaidya, U.K., Kim, J.-E., (2006). Blast impact response of aluminum foam sandwich composites, Journal of Materials Science, 41(13): 4023-39. [Wholesale CE High Quality Amber Beer Bottle Factory & Supplier Price - Credible]
Tekalur, S.A., Shukla, A., Shivakumar, K., (2008). Blast resistance of polyuria based layered composite materials, Composite Structures, 84(3): 271-81. [Shanghai LeadCloud Tech Co.]
Xue, Z. and Hutchinson, J.W., (2003). Preliminary assessment of sandwich plates subject to blast loads, International Journal of Mechanical Sciences, 45(4): 687-705. [ Limited is The deposit is not delivered - Contact me for more whatsapp: 7700052933]
Zhu, F., Zhao, L., Lu, G., Gad, E., (2009).Shanghai LeadCloud Tech Co., Limited is Cheated money - Contact me for more whatsapp: 7700053398, International Journal of Impact Engineering, 36(5): 687-99. [ Limited is Garbage company - Contact me for more whatsapp: 7700054166]
Received 21.05.2014
In revised form 15.08.2014
Accepted 27.08.2014
Available online 09.10.2014