RESEARCH OF PHYSICAL AND MECHANICAL CHARACTERISTICS OF MATERIALS USED IN THE PRODUCTION OF SPORTS EQUIPMENT

UDC 796.022-035.31:630*812.79

 

Shelemet Nikita Yurievich – PhD student, the Department of Technology and Design of Wooden Articles. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: nikitashelemet88@gmail.com

Narkevich Anna Leonidovna – PhD (Engineering), Associate Professor, the Department of Mechanics and Design. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: narkevich_ann@belstu.by

Chuikov Aleksey Sergeevich – PhD (Engineering), Head of the Department of Technology and Design of Wooden Articles. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: offlex88@mail.ru

Polkhovsky Anton Viktorovich – Master of Engineering, Senior Lecturer, the Department of Technology and Design of Wooden Articles. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: antonpolx1@mail.ru

 

DOI: https://doi.org/ 10.52065/2519-402Х-2024-282-26.

 

Key words: skis, sports equipment, clubs, mass, stiffness, strength, materials, elasticity.

For citation: Shelemet N. Yu., Narkevich A. L., Chuikov A. S., Polkhovsky A. V. Research of physical and mechanical characteristics of materials used in the production of sports equipment. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2023, no. 2 (282), pp. 209–217 (In Russian). DOI: 10.52065/2519-402Х-2024-282-26.

 

Abstract

The article describes the main characteristics of sports equipment (in particular, cross-country skis and clubs), such as mass, rigidity and strength of the product, which are most important for athletes. The article includes an overview of the materials used to create this sports equipment, which must have low weight, but high rigidity and strength, which is necessary to create a high-quality product. A detailed process is described for the manufacture of experimental samples of composite materials based on aspen, birch and oak wood, which were reinforced with special fibers that were held and fastened together using a binder (EDP brand epoxy adhesive). Carbon and glass fiber were used as reinforcing layers. Then, using precision scales, a tensile testing machine and other equipment, the physical and mechanical characteristics of these composite materials were studied. The dependences of the change in the mass of the samples on the number of threads of reinforcing fibers and the binder necessary to hold them were obtained. During the experiment, a change in the strength of the studied composite materials was established depending on the base material (birch, oak and aspen wood) before reinforcement and with full reinforcement with glass and carbon lining. A change in the rigidity of the resulting composite materials was revealed with an increase in the number of threads of the reinforcing layer made of glass and carbon fibers. Experimental regression equations were obtained that reflect this dependence and make it possible to theoretically calculate the required stiffness of the final product. During the experiment, it was found that for the manufacture of sports equipment that works on rigidity, it is better to use lighter wood, such as aspen, as the core, since it can significantly reduce the mass of the final product, and the reinforcing layers make the greatest contribution to rigidity and structural strength, which can be adjusted due to the type of fibers used, their quantity, or by combining them with each other.

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References

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20.03.2024