Grebenyuk S.N., Loginova A.A., Reshevskaya K.S., Dyrda V.I., Shevchenko V.G. Destruction of elastomeric elements in the screen sieves under nonlinear deformation

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Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 126

Geoteh. meh. 2016, 126, 106-115

DESTRUCTION OF ELASTOMERIC ELEMENTS IN THE SCREEN SIEVES UNDER NONLINEAR DEFORMATION
¹Grebenyuk S.N.,  ²Loginova A.A., ¹Reshevskaya K.S., ³Dyrda V.I., ³Shevchenko V.G.
¹ZNU MES of Ukraine, ²SHEI «NMU» MES of Ukraine, ¹ZNU MES of Ukraine, ³IGTM NAS of Ukraine

UDC 678.4.66:621.81

Abstract. Destruction of elastomeric elements in the screen sieves used in the mining industry was studied with the help of modified finite element method - a torque scheme of finite element for weakly compressible material - which helps obtaining an adequate technical solution for elastomers.

The article presents an iterative approach to determining the stress-strain state of elastomeric structures under the linear elastic and viscoelastic deformation and geometrically nonlinear elastic and viscoelastic deformation. The string-ribbon stress-strain state was determained by availability of fractures in their structure. Distribution of fracture mechanics parameters, such as rate of the fracture opening and rate of the J-integral, along the fracture front was specified with taking into account nonlinear deformation. The obtained results help predicting much more accurately working life of the sieve elastomeric elements and, consequently, improving the screen reliability, screening efficiency and sieving quality.

Keywords: elastomeric elements of the screen sieve, stress-strain state, nonlinear deformation, fracture, distribution of fracture parameters, working life, screening efficiency and sieving quality.

REFERENCES

 

1. Dyrda, V.I., Grebenyuk, S.N. and Gomenyuk, S.I. (2012), Analiticheskiye i chislennyye metody rascheta rezinovykh detaley. [Analytical and numeral methods of calculation of rubber details], Zaporizhzhya National University., Dnepropetrovsk-Zaporozhye:UA.
2. Kirichevskiy, V.V. (2002), Metod konechnykh elementov v mekhanike elastomerov. [Method of eventual elements in mechanics of elastomerov], Naukova dumka, Kiev, UA.
3. Grebenyuk, S.N. (1999), «Thermomechanical parameters of destruction of viscous-elastic elements of sieves of screens», Visnik Skhidnoukrainskogo derzhavnogo universitetu. - № 3. - Pp. 76-81.
4. Bulat, A.F., Dyrda, V.I., Zvyagilskiy, Ye.L. and Kobets, A.S. (2011), Prikladnaya mekhanika uprugo-nasledstvennykh sred. Tom 1. Mehanika deformirovaniia i razrusheniia elastomerov. [Applied mechanics of the resiliently-inherited environments. Tom 1. Mechanics of deformation and destruction of elastomers], Naukova dumka, Kiev, UA.
5. Bulat, A.F., Dyrda, V.I., Zviagilskii, E.L. and Kobetc, A.S. (2012), Prikladnaya mekhanika uprugonasledstvennykh sred. Tom 2. Metody rascheta elastomernykh detalei. [Applied mechanics of the resilientlyinherited environments.Tom 2. Methods of calculation of elastomers details], Naukova dumka, Kiev, UA.

About the authors:

Grebenyuk Sergey Nikolajevich., Candidate of Technical Sciences (Ph. D.), Head of the Department of Mathematical Analysis in Zaporizhzhya National University MES of Ukraine (ZNU MES of Ukraine), Zaporizhzhya, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .
Loginova Anastasiya Alexandrovna, Master of Science, Doctoral Student, National Mining University State Higher Educational Institution MES of Ukraine (SHEI «NMU» MES of Ukraine), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .
Reshevskaya Yekaterina Sergeevna.,Candidate of Technical Sciences (Ph. D.), Associate Professor of
Information Technologies in Zaporizhzhya National University MES of Ukraine (ZNU MES of Ukraine), Zaporizhzhya, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .
Dyrda Vitaly llarionovich., Doctor of Technical Sciences (D. Sc.), Professor, Head of Department of Elastomeric Component Mechanics in Mining Machines, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .
Shevchenko Vladimir Georgijevich., Doctor of Technical Sciences (D. Sc), Senior Researcher, Scientific Secretary of the Institute, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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