EXPERIMENTAL STUDY OF THE STRUCTURE OF LAYING OF THE REINFORCING MATERIAL OF POWER SHELLS MADE OF CARBON PLASTIC

Abstract

The article is devoted to the study of the influence of the reinforcing material laying rate and the formation of the structure of carbon fibre shells by the wet winding method using the example of a thin-walled cylinder with a diameter of 100 mm. The design of composite parts simultaneously solves the problem of designing, creating a material and manufacturing technology. Based on this feature of composites, the perfection of manufacturing technology is one of the most important features that determines the composition and mechanical parameters of the entire structure. Thus, to obtain products that have a high weight efficiency coefficient and meet the requirements used in their design, it is necessary to develop and continuously improve manufacturing technology. That is why polymeric composite materials (PCMs), and primarily carbon fibre plastics, are increasingly widely used in the manufacture of power elements, heat-resistant panels and hermetic shells, the operation of which requires high parameters of specific strength, stiffness, temperature stability and tightness. The above parameters must be ensuredthroughout the entire service life of the part. Much attention is paid to the problem of forming a high-quality carbon fibre structure using the wet winding method. In this work, blanks of thin-walled cylinders with a diameter of 100 mm were made of carbon fibre-reinforced plastic based on high-strength carbon fibre and epoxy binder. The principle of construction and laying of a power shell with a rational reinforcement angle is investigated. Different parameters of the reinforcing filler laying in the formation of the winding scheme are considered. Based on the results of experimental studies, the paper provides scientific substantiation and recommendations for the choice of technological parameters in the formation of thin-walled carbon fibre shells, which have additional requirements for elasticity and stiffness.  An assessment of the results obtained and conclusions on the work performed are presented.