scholarly journals Mechanical Properties of GFR & Graphite Epoxy Polymer Composites

2020 ◽  
Vol 5 (6) ◽  
pp. 560-565
Author(s):  
A. Aakash ◽  
S. Selvaraj
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Composite Materials ◽  
Polymer Composite ◽  
Epoxy Polymer ◽  
Significant Degree ◽  
Polymer Composite Material ◽  
Water Ingestion ◽  
Selection Of

Composite materials have the great potential and widely used as building material in numerous applications. Polymer composite material obtains the necessary properties in a controlled significant degree by the selection of strands and lattice. The properties of the materials have been selected by choosing the correct proportion of matrix and reinforcements. To build the quality of the material by expanding the fiber substance of the material. In this current examination, the mechanical properties of the glass fiber and graphite is strengthened with epoxy polymer composite were considered. Here the open embellishment method was received for the manufacture of the polymer composite The mechanical properties, for example, rigidity, compression quality, sway quality and water ingestion test was resolved according to the ASTM norms. The mechanical properties were improved as the filaments support content expanded in the grid material.

Manufacturing support for porosity reduction of polymer composite material components

2021 ◽  
Vol 0 (6) ◽  
pp. 16-21
Author(s):  
G. V. Malysheva ◽  
◽  
T. A. Guzeva ◽  
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Polymer Composite ◽  
Chemical Nature ◽  
Polymer Composite Material ◽  
Polymer Matrices ◽  
Porosity Reduction

The main regulations for manufacturing support of the quality of polymer composite material components based on thermoplastic and thermosetting matrices are presented. Using examples of polymer composite material components, the effect of a molding technology and the chemical nature of a matrix on values of shrinkage and porosity was demonstrated. The effect of shrinkage and porosity on polymer matrices and composite materials based on different reinforcing materials is discussed.

Formation of mechanical properties of polymer composite materials with different types of hybrid matrices

2021 ◽  
pp. 28-34
Author(s):  
E. A. Kosenko ◽  
◽  
P. E. Demin ◽  
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Composite Materials ◽  
Polymer Composite ◽  
Strength Properties ◽  
Polymer Composite Material ◽  
Polymer Materials ◽  
Polymer Composite Materials ◽  
Hybrid Matrix ◽  
The Matrix

The mechanical properties of polymer composite materials largely depend on the interfacial phenomena occurring on the interface between the matrix and reinforcing material. The addition of components to the matrix of polymer composite materials that retain their viscoelastic state during the molding process of the products makes possible to locally change the deformation-and-strength properties of a finished product, adapting it to the specified operating conditions. The viscoelastic components in the hybrid matrix form the third phase of the polymer composite material. Increasing the efficiency of interfacial layers of polymer composite materials with various types of hybrid matrices is the most important task of their development. The samples for microanalysis of the polymer composite material structure with various types of hybrid matrices were molded using the prepreg technology by vacuum molding on the basis of BT400 biaxial basalt fabric. Technical wax, anaerobic (Loctite 638) and organosilicon (Yunisil-9628) polymer materials were selected as the viscoelastic components of the hybrid matrix. In order to explain the reasons for the change in the deformation-and-strength properties of the obtained basalt plastics with various viscoelastic components in the composition of the hybrid matrix, microanalysis of their structure was carried out. A mechanism for choosing a scheme for the location of viscoelastic components in a matrix of polymer composite materials based on the provisions of combinatorial optimization is described.

scholarly journals DETERMINATION OF DEFORMATION IN MESH COMPOSITE STRUCTURE UNDER THE ACTION OF COMPRESSIVE LOADS

2020 ◽  
Vol 17 (35) ◽  
pp. 599-608 ◽  
Author(s):  
Alexander A. OREKHOV ◽  
Yuri A. UTKIN ◽  
Polina F. PRONINA
Keyword(s):  
Composite Material ◽  
Carbon Fiber ◽  
Bearing Capacity ◽  
Polymer Composite ◽  
Experimental Studies ◽  
Polymer Composite Material ◽  
Lightweight Mesh ◽  
Carbon Filler ◽  
Selection Of

One of the significant innovative technologies is the creation of large-sized structures that work for a long time in space and meet stringent restrictions on overall mass characteristics. Among these structures, in the first place, is the section of bearing truss (BT). This article presents the results of experimental studies of sectors of load-bearing trusses of mesh design for compression. Recently, composite mesh cylindrical shells are used as spacecraft housings. The mesh shell is a supporting structure to which the instruments and mechanisms of the spacecraft are attached. The truss section is made of cross-linked polymer composite material with carbon fibers. The objective of the tests is to confirm the possibility of creating a lightweight mesh construction using a carbon fiber reinforced polymer composite material. To achieve this goal, the authors were assigned the following tasks: selection of carbon filler of polymer composite materials (PCM); selection of PCM binder; determination of the degree of carbon fiber reinforcement; choice of the number and orientation paths of spiral ribs, number of ring ribs and the sizes of individual ribs. As a result of the research, the calculated indicators for ensuring the bearing capacity and stiffness under the application of axial compressive load were obtained. At the same time, with the determination of bearing capacity, the deformation characteristics of the structure were twice determined in order to confirm their repeatability, as well as linear nature of the dependence of axial and radial deformations as a result of the applied load.

scholarly journals CONCEPTUAL DESIGN OF THE WING OR FUSELAGE STRUCTURE OF A MAINLINE AIRCRAFT MADE OF METAL-POLYMER COMPOSITE MATERIALS

2021 ◽  
pp. 74-82
Author(s):  
Valery Pechenyuk ◽  
◽  
Yuri Popov ◽  
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Polymer Composite ◽  
Polymer Composite Material ◽  
Polymer Composite Materials ◽  
Design Stage ◽  
Aluminum Sheets ◽  
Preliminary Design Stage ◽  
Modified Formula ◽  
Metal Polymer

The analysis of existing aircraft structures made of metal-polymer composite materials is carried out, and a list of them with passport characteristics is compiled. The Fokker F-27 Friendship, Boeing-777 and Airbus A380, which use ARALL and GLARE materials, were selected as the aircraft under study. Formulas are determined and the distribution of normal force flows between metal and composite elements in the composition of MPCM based on aluminum sheets (aluminum-fiberglass – SIAL- 1-1, SIAL-3-1 and SIAL-1441 (9/8)) and titanium alloys (samples of titanium-carbon fiber from the patent-Example 1 and Example 3). To determine these parameters, the formulas used for a composite structure made of different materials are used. On the basis of the specification known MPCM the modified formula mixture rule for calculating the strength of new materials with a given set of orientation angles of PCM and the presence of layers of sheet metal, a comparison with standard mechanical characteristics and to show the efficiency of these formulas. Using these formulas, you can determine the strength characteristics for an arbitrary composition of the MPCM package. The features of the choice of design permissible stresses for the design of the airframe of a mainline aircraft made of metal-polymer composite material are highlighted. The concept of designing aircraft airframe elements using MPCM is considered. The results of this work will allow us to determine the rational components of the metal-polymer composite material and the structure of their distribution in the airframe design at the preliminary design stage.

Development of Forming Method of Deployable Boom from Thermoplastic Polymer Composite

2021 ◽  
Vol 887 ◽  
pp. 105-109
Author(s):  
A.M. Iuvshin ◽  
Y.S. Andreev ◽  
S.D. Tretyakov
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Polymer Composite ◽  
Manufacturing Process ◽  
Polymer Composite Material ◽  
Polymer Composite Materials ◽  
Thermoplastic Polymer ◽  
Labour Intensity ◽  
Thermoset Polymer ◽  
Length Limitation

This paper studies deployable elements which are used in satellites and different terrestrial antenna devices. Many deployable elements are made from steel or thermoset polymer composite materials and have the following disadvantages like length limitation of deployable elements, labour intensity of manufacturing process of deployable elements etc. For this purpose a deployable tube boom element was chosen and a forming method for manufacturing deployable tube element from thermoplastic polymer composite material was developed.

Local Repair of Parts from Polymer Composite Material with the Use of Portable Hot Bonder Control Systems

2020 ◽  
Vol 992 ◽  
pp. 347-352
Author(s):  
V.V. Bazheryanu ◽  
I.V. Zaychenko ◽  
E.P. Zharikova
Keyword(s):  
Composite Materials ◽  
Control Systems ◽  
Polymer Composite ◽  
Local Heating ◽  
Polymer Composite Material ◽  
Heating Element ◽  
Polymer Composite Materials ◽  
Local Repair ◽  
Production Area ◽  
Selection Of

The object of research is the repair processes of parts made of polymer composite materials using a local heating element. The goal is the development of technology, the selection of equipment for repair of parts and assemblies from polymer composite materials using a local heating element and a vacuum source outside the production area, as part of the aircraft. In the process of performing the work, an analysis and review of the existing equipment for local repair of parts from polymer composite materials was carried out. Equipment for local repair of own and imported production was tested. Based on the results of testing and market analysis, equipment was selected that meets the requirements of ND for the manufacture of parts from polymer composite materials. A technical process for repairing parts using a local heating element and a device for hot gluing has been developed.

Production accuracy of polymer composite material components

2020 ◽  
Vol 0 (11) ◽  
pp. 3-9
Author(s):  
G. V. Malysheva ◽  
◽  
T. A. Guzeva ◽  
Keyword(s):  
Composite Material ◽  
Polymer Composite ◽  
Quality Characteristics ◽  
Polymer Composite Material ◽  
Functional Design ◽  
Surface Layers ◽  
Shrinkage Effect ◽  
Surface Layer Quality

The main conditions of manufacturing support of the quality of polymer composite material components are set out. The life cycle, functional, design and technological tolerances, the surface layer quality and methods for providing preset accuracy are discussed. The classification of manufacturing types is given. The shrinkage effect is considered on an example of polymer composite components produced with different accuracy. The quality characteristics of the surface layers and the quality class values are presented for components based on the thermoplastic and thermosetting matrixes.

Research of Vegetable Silicon Dioxide as a Filler for Polymer Composite Material

2021 ◽  
Vol 899 ◽  
pp. 202-207
Author(s):  
Dina I. Fazylova ◽  
Lyubov A. Zenitova
Keyword(s):  
Molecular Weight ◽  
Composite Material ◽  
Composite Materials ◽  
Silicon Dioxide ◽  
Polymer Composite ◽  
Rice Husk ◽  
Silicone Rubber ◽  
Polymer Composite Material ◽  
Low Molecular Weight ◽  
Impression Materials

Polymer composite materials based on low molecular weight silicone rubber SKTN-D have been developed, which are supposed to be used as impression materials in dentistry. Vegetable silicon dioxide obtained from rice husk waste was studied as a filler.

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