Özet:

The review of the mechanical characteristics and impact resistance related to the number of elephant tubes in compound materials (CTP) The rapid development in the automotive, aviation, space and defense industries has made the use of light and high strength materials necessary. For this purpose, plastic composite materials with glass fiber supplements have begun to be manufactured and are widely used. These materials have found a wide range of use because they have higher strength and rigidity compared to their weights. In this study, the mechanical characteristics of composite materials manufactured by the method of production of hand-inserting, with different layers of glass fiber, have been studied. The average strength values have been obtained by drawing and three-point swing tests of the composite materials produced. It also has been conducted a low-speed impact test (impact test) to study the impact resistance of materials. Makro and micro photographs were taken from pre- and post-test samples, and the samples were characterized from a metallographic perspective. The damaged areas of the rubber and glass fiber material are detailed in the images. When the mechanical characteristics of glass fiber supplement (CTP) composite materials were studied, the mechanical characteristics of composite materials related to the number of fiber layers were improved. In view of the Impact test results, the increase in the number of fiber layers and the energy values absorbed by materials (destroy energy) showed an approximately linear increase. INVESTIGATION OF MECHANICAL PROPERTIES AND IMPACT STRENGTH DEPENDING ON THE NUMBER OF FIBRE LAYERS IN GLASS FIBRE REINFORCED POLYESTER MATRIX COMPOSITE MATERIALS Rapid development of automotive, aviation, aerospace and defense industries are necessitated the use of lightweight and high strength materials. For this purpose, glass fiber reinforced plastic composite materials are started to be produced and widely used. These materials are in proportion to weight have higher strength and rigidity so that has found widespread use. In this study, glass fiber reinforced plastic composite materials were produced with hand lay-up as different number of layers of glass fiber. Mechanical properties of produced composite materials were investigated. Avarage strength values of produced composite materials are obtained with three points bending and tensile tests. In addition to these tests, the impact strength of materials were investigated by low speed impact test. Macro and micro photographs of samples were taken before and after the tests. The samples were characterized by metallographic respect. The damage zones of resin and glass fiber materials were examined in detail in the test images. The variation of mechanical properties depending on the number of fiber layers were identified considering the experimental results. Mechanical properties of GFRP materials were investigated; mechanical properties of fiber composite materials had a good outcome, depending on the number of layers. When impact test results are examined, between the number of fiber layers and the values of the energy absorbed by GFRP were observed approximately linearity.

Anahtar Kelimeler: