Mechanical Properties of Metallic Cellular Materials With Polymer

2010 ◽  
Author(s):  
Satoshi Kishimoto ◽  
Kimiyoshi Naito ◽  
Toru Shimizu ◽  
Fuxing Yin
Keyword(s):  
Mechanical Properties ◽  
Internal Friction ◽  
Metal Foam ◽  
Pure Aluminum ◽  
High Energy ◽  
Cellular Materials ◽  
Cellular Material ◽  
Polyurethane Resin ◽  
High Energy Absorption ◽  
Compressive Tests

A metallic cellular materials containing polymer was fabricated by the penetrating polymer into metal foam. The aluminum and stainless steel foams were selected for the metal foam and epoxy resin and polyurethane resin were selected for the penetrated polymer. The mechanical, damping shock absorbing properties of this material were measured. The results of the compressive tests show that this material has different stress-strain curves among the specimens that include different materials in the cells. Also, these results show that this material has high-energy absorption. The internal friction of this material was measured and the result shows that the internal friction of this material is larger than that of pure aluminum closed cellular material without any polymer and change with increasing of temperature. The shock absorbability of this material is larger than that of polymer and smaller than that of metallic cellular material.

Mechanical Properties of Closed Cellular Materials Containing Polymer

2009 ◽  
Author(s):  
Satoshi Kishimoto ◽  
Kimiyoshi Naito ◽  
Toru Shimizu ◽  
Fuxing Yin
Keyword(s):  
Internal Friction ◽  
Metal Foam ◽  
Pure Aluminum ◽  
High Energy ◽  
Cellular Materials ◽  
Acoustic Damping ◽  
High Energy Absorption ◽  
Damping Materials ◽  
Energy Absorbing ◽  
Compressive Tests

Cellular materials have unique thermal, acoustic, damping and energy absorbing properties that can be combined with their structural efficiency. Therefore, many kinds of cellular materials have been developed and tested as energy absorbing and damping materials. Particularly, closed cellular materials are thought to have many favorable properties and applications. In this study, a metallic closed cellular materials containing polymer was fabricated by the penetrating polymer into metal foam. The aluminum and stainless steel foams were selected for the metal foam and epoxy resin and polyurethane resin were selected for the penetrated polymer. The mechanical and damping properties of this material were measured. The results of the compressive tests show that this material has different stress-strain curves among the specimens that include different materials in the cells. Also, These results show that this material has high-energy absorption. The internal friction of this material was measured and the result shows that the internal friction of this material is larger than that of pure aluminum closed cellular material without any polymer and change with increasing of temperature.

Mechanical Properties of Metallic Closed Cellular Materials Containing Polymer Fabricated by Polymer Penetration

2010 ◽  
Vol 654-656 ◽  
pp. 2628-2631 ◽  
Author(s):  
Satoshi Kishimoto ◽  
Toru Shimizu ◽  
Fu Xing Yin ◽  
Kimiyoshi Naito ◽  
Yoshihisa Tanaka
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Compressive Strength ◽  
Internal Friction ◽  
Epoxy Resin ◽  
Metal Foam ◽  
Cellular Materials ◽  
Polyurethane Resin ◽  
The Many ◽  
Compressive Tests

Metallic closed cellular materials containing polymer were fabricated by the penetrating polymer into metal foam. The aluminum and stainless steel foams were selected for the metal foam and epoxy resin and polyurethane resin were selected for the penetrated polymer. The many kinds of mechanical properties of this material were measured. The results of the compressive tests show that these materials have different stress-strain curves among the specimens that containing different materials in the cells. Also, this metallic closed cellular materials containing polymer have higher compressive strength, higher Young’s modules, higher energy absorption and higher internal friction than that of metallic closed cellular material without any polymer.

Fabrication Method for Metallic Closed Cellular Materials Containing Different Materials from that of Cell Walls by SPS Method

2007 ◽  
Vol 539-543 ◽  
pp. 3184-3189
Author(s):  
Satoshi Kishimoto ◽  
Norio Shinya
Keyword(s):  
Internal Friction ◽  
Cell Walls ◽  
Pure Aluminum ◽  
High Energy ◽  
Alloy Layer ◽  
Cellular Materials ◽  
Damping Material ◽  
High Energy Absorption ◽  
Energy Absorbing ◽  
Compressive Tests

Several methods of fabricating metallic closed cellular materials a spark plasma sintering (SPS) system have been developed. Powdered polymer particles coated with a nickel-phosphorus alloy layer using electro-less plating were pressed into pellets and sintered at high temperatures in a furnace using SPS system. Metallic closed cellular materials containing different materials from the cell walls were then fabricated. The physical, mechanical and damping properties of these materials were measured. The results of the compressive tests show that this material has different stressstrain curves among the specimens that have different cell wall thicknesses and the sintering temperatures of the specimens affect the compressive strength of each specimen. Also, it seems that the results of the compressive tests show that this material has a high-energy absorption. The internal friction of this material was measured and the results show that this internal friction is the same as that of pure aluminum. These results suggest that this material can be utilized as an energy absorbing and passive damping material.

Closed Cellular Materials for Smart Materials

2010 ◽  
Vol 638-642 ◽  
pp. 2074-2079
Author(s):  
Satoshi Kishimoto
Keyword(s):  
Internal Friction ◽  
Smart Materials ◽  
Metal Layer ◽  
Pure Aluminum ◽  
Physical And Mechanical Properties ◽  
High Energy ◽  
Cellular Materials ◽  
Plasma Sintering ◽  
Powder Particles ◽  
High Energy Absorption

New methods to fabricate a metallic closed cellular material for smart materials using an isostatic pressing and penetrating method are introduced. Powder particles of polymer or ceramics coated with a metal layer using electro-less plating were pressed into pellets and sintered at high temperature. These powder particles were sintered by spark plasma sintering (SPS) method. Closed cellular materials including polymer were fabricated by penetrating polymer into metallic foams. Many kinds of metallic closed cellular materials including different materials from that of cell walls were tried to fabricate. The physical and mechanical properties of these materials were measured. The results of the compressive tests show that this material has high-energy absorption and the result of measuring the internal friction show that the internal friction of these materials is larger than that of pure aluminum.

Development of Metallic Closed Cellular Materials Containing Polymers

1998 ◽  
Vol 551 ◽  
Author(s):  
S. Kishimoto ◽  
N. Shinya
Keyword(s):  
High Energy ◽  
Ultrasonic Measurement ◽  
Cellular Material ◽  
Space Applications ◽  
New Material ◽  
Powder Particles ◽  
High Energy Absorption ◽  
Increasing Temperature ◽  
Phosphorus Alloy ◽  
Compressive Tests

AbstractA new material for structures in space, which have a high energy absorbability has been developed using a powder particle assembling technique. Powder particles of polystyrene coated with nickel-phosphorus alloy layers using electroless plating were sintered at high temperature. A metallic closed cellular material containing polystyrene was then constructed.The mechanical and ultrasonic properties of this material were measured at both room and high temperatures. The compressive tests of this material show a low Young's modulus and high energy absorption. Ultrasonic measurement shows that the attenuation coefficient of this cellular material is very large and would change due to increasing temperature. These results indicate that this metallic closed cellular material can be used for the space applications.

Mechanical and Thermal Properties of Micro-Closed Cellular Materials Containing Different Materials from that of Cell Walls

2007 ◽  
Vol 561-565 ◽  
pp. 1693-1698
Author(s):  
Satoshi Kishimoto ◽  
Yoshio Hasegawa ◽  
Hiroto Kodama
Keyword(s):  
Thermal Properties ◽  
Cell Walls ◽  
Metal Layer ◽  
High Energy ◽  
Cellular Material ◽  
Mechanical And Thermal Properties ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
High Energy Absorption ◽  
Compressive Tests

A method to fabricate the metallic closed cellular material has been developed. Powder particles of polymer or ceramics coated with a metal layer using electro-less plating were pressed into pellets and sintered at high temperatures by heating and spark plasma sintering (SPS) method. A metallic closed cellular material containing different materials from that of cell walls was then fabricated. The mechanical and Thermal properties of this material were measured. The results of the compressive tests show that this material has the different stress-strain curves among the specimens that have different thickness of the cell walls and the sintering temperatures of the specimens affect the compressive strength of each specimen. Also, it seems that the results of the compressive tests show that this material has high-energy absorption and Young’s modulus of this material depends on the thickness of the cell walls. Also thermal properties of this material were measured.

scholarly journals Mechanical Properties of Cemented Particulate Composite: A 3D Micromechanical Model

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3875
Author(s):  
Chenglin Tao ◽  
Xi Liang ◽  
Xiaoxue Bi ◽  
Zeliang Liu ◽  
Huijian Li
Keyword(s):  
Mechanical Properties ◽  
Micromechanical Model ◽  
Three Dimensional ◽  
Particulate Composite ◽  
High Strength ◽  
High Energy ◽  
Engineering Practice ◽  
High Energy Absorption ◽  
Granular Composites ◽  
Properties Of Composites

Cemented particulate composite is a kind of composite material with high strength, high energy absorption, and multifunctional characteristics, which is widely used in engineering practice. The calculation of the mechanical properties of granular composites based on theoretical methods has always been a topic of discussion. A micromechanical model with a three-dimensional rigid beam-spring network (3D-RBSN) is proposed here. The stiffness matrix of the model was calculated theoretically. The model was applied to the analysis of the mechanical properties of composites material with glass beads and epoxy resin. The results indicate that the 3D-RBSN model can effectively predict the mechanical properties of composite materials, such as Young’s modulus and Poisson’s ratio. Furthermore, the damage evolution process of cemented particulate composite with initial defects was analyzed based on the 3D-RBSN model.

scholarly journals Effect of Freeze-Thaw Cycles on the Mechanical Properties of Polyacrylamide- and Lignocellulose-Stabilized Clay in Tibet

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Haiping Shi ◽  
Zhongyao Li ◽  
Wenwei Li ◽  
Shaopeng Wang ◽  
Baotian Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Internal Friction ◽  
Unconfined Compressive Strength ◽  
Friction Angle ◽  
Internal Friction Angle ◽  
Test Results ◽  
Freeze Thaw ◽  
Original Strength ◽  
Compressive Tests

Laboratory freezing experiments were conducted to evaluate the effect of polyacrylamide (PAM) and lignocellulose on the mechanical properties and microstructural characteristics of Tibetan clay. Direct shear and unconfined compressive tests and field emission scanning electron microscopy analyses were performed on clay samples with different contents of stabilizers. The test results show that the addition of PAM can improve the unconfined compressive strength and cohesion of Tibetan clay, but an excessive amount of PAM reduces the internal friction angle. After several freeze-thaw cycles, the unconfined compressive strength and cohesion of samples stabilized by PAM decrease significantly, while the internal friction angle increases. Samples stabilized by PAM and lignocellulose have higher internal friction angles, cohesion, and unconfined compressive strength and can retain about 80% of the original strength after 10 freeze-thaw cycles. PAM fills the pores between soil particles and provides adhesion. The addition of lignocellulose can form a network, restrict the expansion of pores caused by freeze-thaw cycles, and improve the integrity of PAM colloids. It is postulated that the addition of a composite stabilizer with a PAM content of 0.4% and a lignocellulose content of 2% may be a technically feasible method to increase the strength of Tibetan clay.

scholarly journals Mechanical Properties of Lightweight Concrete Partition with a Core of Textile Waste

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Kamran Aghaee ◽  
Mohammad Foroughi
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Energy Absorption ◽  
Thermal Insulation ◽  
Lightweight Concrete ◽  
High Energy ◽  
Composite Panels ◽  
Textile Waste ◽  
Concrete Panels ◽  
High Energy Absorption

This investigation is focused on bending experiment of some prismatic perlite lightweight concrete. In these samples, textile waste fibers are confined with textile mesh glass fiber and embedded in the central part of cubic lightweight concrete specimens. Bending experiments revealed that lightweight concrete panels with a core of textile waste fiber have less density than water and high energy absorption and ductility. Furthermore, these composite panels by having appropriate thermal insulation characteristics could be used for partitioning in the buildings.

scholarly journals Acacia Ferrugenia Reinforced Polyester Composites

2020 ◽  
Vol 8 (4S4) ◽  
pp. 208-211
Keyword(s):  
Mechanical Properties ◽  
Research Work ◽  
High Energy ◽  
Fiber Reinforced Polymer ◽  
Light Weight ◽  
Automotive Components ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites ◽  
Polyester Composites ◽  
High Energy Absorption

Fiber Reinforced Polymer composites are widely used in light weight automotive components. In this research work, the mechanical properties of acacia/polyester composites were studied. The composites were prepared in 10 and 20 wt% varying fiber loading, treated and untreated compositions using compression molding technique. The composites were tested for mechanical properties and their results were studied. The results indicated that the 10 wt%, treated Acacia ferrugenia/polyester composites showed better fire resistivity and high energy absorption characteristics.

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