scholarly journals THE RESULTS OF MULTI-LAYERED POLYMER COMPOSITE MATERIAL MECHANICAL TESTING COMPARATIVE ANALYSIS

2020 ◽  
pp. 27-39
Author(s):  
Mazen Alsaid ◽  
Ali Salamekh ◽  
Viktor A. Mamontov ◽  
Gyulaga Y. Azizova
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Composite ◽  
Mechanical Test ◽  
Glass Fibers ◽  
Breaking Load ◽  
Mechanical Tests ◽  
Polymer Composite Material ◽  
Polymer Composite Materials ◽  
Test Operation

The mechanical properties of polymer composite materials used in shipbuilding are examined in this article. The samples from polymer composite materials based on glass fibers and polyester resin were made for this purpose. The manufacturing samples technique from polymer composite materials for mechanical test operation is represented here. The influence of woven roving fabric layers number ratio to the number of glass-fiber mat layers under testing samples for expansion, compression and 3 point bending has been determined by mechanical tests method. As the data processing result obtained in the experiment course it has been determined that the number of woven roving fabric layers increase with polymer composite materials increases the breaking load and tensile ultimate strength and decreases these values under compression and 3 point bending. The results obtained in this article are the basis for identifying polymer composite materials mechanical properties with different reinforcement schemes in case of their application in ship structures such as a material for transport vessels superstructure .

scholarly journals Studying the Mechanical Properties of Denture Base Materials Fabricated from Polymer Composite Materials

2018 ◽  
Vol 14 (3) ◽  
pp. 100-111 ◽  
Author(s):  
Jawad Kadhim Oleiwi ◽  
Qahtan Adnan Hamad
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Composite ◽  
Volume Fraction ◽  
Mechanical Tests ◽  
Polymer Composite Materials ◽  
Resin Matrix ◽  
Denture Base ◽  
Base Materials ◽  
Pmma Resin

In this research, the effect of adding two different types of reinforcing particles was investigated, which included: nano-zirconia (nano-ZrO2) particles and micro-lignin particles that were added with different volume fractions of 0.5%, 1%, 1.5% and 2% on the mechanical properties of polymer composite materials. They were prepared in this research, as a complete prosthesis and partial denture base materials was prepared, by using cold cure poly methyl methacrylate (PMMA) resin matrix. The composite specimens in this research consist of two groups according to the types of reinforced particles, were prepared by using casting methods, type (Hand Lay-Up) method. The first group consists of PMMA resin reinforced by (nano-ZrO2) particles, while the second group consists of PMMA resin reinforced by (micro-lignin) particles. The mechanical tests performed in this research includedtensile test, compression test, impact test and hardness test. The results of this study showed that the values of tensile modulus of elasticity, compressive strength and hardness properties increased with increasing the volume fraction of these particles in PMMA composite materials. While, the values of tensile strength, elongation and impact strength properties decreased. Also, the addition of (nano-ZrO2) particles showed greater effect than that of (micro-lignin) particles in some properties of PMMA composite materials for prosthesis denture base materials specimens, while they have lower effect for the other properties.

scholarly journals Binders for impregnation of fibrous fillers in the production of prepregs

2021 ◽  
Vol 57 (2) ◽  
pp. 236-252
Author(s):  
I. A. Latyshevich ◽  
A. I. Hapankova ◽  
N. G. Kozlov ◽  
A. V. Polkhovsky
Keyword(s):  
Composite Materials ◽  
Polymer Composite ◽  
Automotive Industry ◽  
Glass Fibers ◽  
Technical Information ◽  
Polymer Composite Material ◽  
Polymer Composite Materials ◽  
Patent Search ◽  
Reinforcing Material ◽  
Fibrous Fillers

The article presents a review of the scientific and technical information from Russian and foreign periodicals, patents for inventions in the field of using various materials for the production of prepregs. Data on global manufacturers and applied technologies are provided. Prepreg is a polymer composite material based on carbon or glass fabrics. The technology for its production consists in impregnating the reinforcing material with a special binder. Typically, it is the resin in an uncured or partially cured state. Particular attention to polymer composite materials based on glass fibers is paid. The binder is a solution of organic substances, which is used as an impregnating agent. The combination of fibrous fillers and impregnating composition makes it easy to shape the final product. It is showed that the main areas of prepreg applications are the automotive industry, construction, transport, sports equipment, as well as various sectors of the national economyThe composite materials are shown to have a number of advantages, including economic ones. According to the conducted scientific and patent search, the most common components of polymer composite materials are epoxy resin and various types of hardeners.

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.

Aging of polymer composite materials under loading. (See Beginning in #10-2020)

2020 ◽  
pp. 2-12
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Composite ◽  
Polymer Composite Materials ◽  
Cyclic Loads ◽  
Reinforced Plastics ◽  
Water Exposure ◽  
Laboratory Conditions ◽  
Bending Loads ◽  
Moisture Conditions

A study review of aging polymer composite materials (PCM) under different heat-moisture conditions or water exposure with the sequential or parallel influence of static or cyclic loads in laboratory conditions is presented. The influence of tension and bending loads is compared. Conditions of the different load influence on parameters of carbon-reinforced plastics and glass-reinforced plastics are discussed. Equipment and units for climatic tests of PCM under loading are described. Simulation examples of indices of mechanical properties of PCM under the influence of environment and loads are shown.

Aging of polymer composite materials under loading

2020 ◽  
pp. 7-18
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Composite ◽  
Polymer Composite Materials ◽  
Cyclic Loads ◽  
Reinforced Plastics ◽  
Water Exposure ◽  
Laboratory Conditions ◽  
Bending Loads ◽  
Moisture Conditions

A study review of aging polymer composite materials (PCM) under different heat-moisture conditions or water exposure with the sequential or parallel influence of static or cyclic loads in laboratory conditions is presented. The influence of tension and bending loads is compared. Conditions of the different load influence on parameters of carbon-reinforced plastics and glass-reinforced plastics are discussed. Equipment and units for climatic tests of PCM under loading are described. Simulation examples of indices of mechanical properties of PCM under the influence of environment and loads are shown.

Investigation of the Staging of Damage Accumulation in Polymer Composite Materials during Bending and Tensile Tests

2021 ◽  
Vol 887 ◽  
pp. 116-122
Author(s):  
A.A. Bryansky ◽  
O.V. Bashkov ◽  
Daria P. Malysheva ◽  
Denis B. Solovev
Keyword(s):  
Acoustic Emission ◽  
Composite Materials ◽  
Polymer Composite ◽  
Loading Rate ◽  
Tensile Tests ◽  
Mechanical Tests ◽  
Rate Effect ◽  
Polymer Composite Materials ◽  
Static Tension ◽  
Point Bend

The paper presents the results of the study of registered acoustic emission (AE) parameters during static deformation and damaging of polymer composite materials (PCM). Mechanical tests were done by a static tension and a static three-point bend, accompanied by an acoustic emission method. The assessment of the loading rate effect on defects formation processes was done by additional static tension test at rate equal half of recommended by the standard and static three-point bend test at rate ten times lower than that calculated by the standard. Clustering by frequency components of the recorded AE signals with a self-organizing Kohonen map was performed. The characteristics of the types of PCM structure damage by the centroids of the obtained clusters are given. Based on the clusters accumulation during mechanical tests, the stages of damage formation for static tension and static three-point bend, the loading rate effect on the process of damage formation are described.

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.

scholarly journals METHOD OF SAMPLE MANUFACTURING FROM MULTILAYER COMPOSITE MATERIALS FOR STUDYING THEIR MECHANICAL PROPERTIES

2018 ◽  
pp. 16-23
Author(s):  
Alsaid Mazen ◽  
Ali Salamekh
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Composite ◽  
Testing Machine ◽  
Physical And Mechanical Properties ◽  
Polymer Composite Materials ◽  
Technological Parameters ◽  
Cutting Out ◽  
Method Of Production ◽  
Economic Considerations

In the last decades there is increasing the need to apply polymer composite materials in different industries, particularly in shipbuilding. There are developing single structures made from polymer composite materials to be used on board ships. The article focuses on technology of manufacturing slabs from polymer composite materials to carry out mechanical testing in the laboratory special standard units. Mechanical properties of polymer composite materials depend on molding technologies. There has been described a technology of sample manufacturing from polymer composite materials reinforced with glass fiber mat with fiberglass plastics. The technique of testing the specified samples for tensile strength has been considered. The sizes and shapes of the samples as well as the technological parameters of the manufacturing process have been validated, depending on the standard requirements and the technological features of the testing machine. The physical and mechanical properties of the components that make up the composite materials are considered. The sequence of stacking layers for preparation of plates from composite materials is indicated. The dimensions of the plates for cutting out finished samples are determined, depending on the method of production. The way of laying plates from composite materials has been chosen on the base of economic considerations and conditions of accessibility. The obtained results of mechanical properties can be used in solving problems of application of polymer composite materials in shipbuilding, for example, in manufacturing superstructures of some dry cargo vessels.

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