Application of powder from alloy of brass L63, in the composition of elastomeric composite, for increasing the tension sensitivity coefficient

• Published in: Journal of physics. Conference series 2020-05, Vol.1546 (1), p.12070
• Main Authors: Titov, Yu V, Rechenko, D S, Nazarov, P V, Yu Belan, D
• Format: Article
• Language: English
• Subjects: Brasses; Coefficients; Control methods; Design parameters; Elastomers; Electrical properties; Mathematical analysis; Mechanical properties; Reliability analysis; Rubber; Sensitivity; Service life; Statistical methods; Strain sensitivity coefficient; Stress-strain relationships
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/1546/1/012070

The range of rubber-cord products used in industry is quite wide. Their design includes determination of parameters during calculation and subsequent tests confirming their reliability, operability and properties. It is equally important to assess the stress-strain state (VAT) of a structure during operation, which allows to understand the accident rate, make a timely decision, collect statistics for effective development of new structures and improvement of old ones. The VAT control methods offered today have a number of drawbacks: the short service life of measuring and sensing elements, their introduction of errors in the operation of the structure, and often the inability to measure, for example, when working in aggressive media. The aim of the work is to evaluate the possibility of using brass powder L63, obtained by high-speed processing, in the elastomeric composite. To achieve the set goal it is necessary to solve the following problems: to make samples from the mixture with the addition of powder L63 and without it; to compare the samples from the received mixtures on the strain-sensitivity coefficient; to compare the samples from the specified mixtures in the process of mechanical loading on the breaking machine with simultaneous registration of electrical resistance. The results: Studies were conducted on the possibility of using ultra-dispersive powder L63 to improve the electrical properties of rubber. It has allowed to increase the coefficient of strain-sensitivity in 5-7 (in comparison with classical electroconductive rubbers), keeping their mechanical properties. Sensitive elements made of such a rubber mixture will give an opportunity to create "smart" composites, as well as to control the stress-strain state. Based on the results of these studies, the Act of Implementation has been issued.