Issue 41

E. Nurullaev et alii, Frattura ed Integrità Strutturale, 41 (2017) 369-377; DOI: 10.3221/IGF-ESIS.41.48 377 2. Increase of silica fraction quantity in the composite from two to four causes decrease of conventional rupturing stress at rupturing deformation increase at every temperature of numerical experiment. 3. For the first time the authors constructed envelopes of sample rupture points according to T. Smith at uniaxial tension and different temperatures, plasticizer volume fractions in the polymer binder and different filler fraction mixture values, which enable basically predict service live of advanced polymer composite materials in different coverings. 4. To compare mechanical behavior of composites based on low-molecular and high-molecular rubbers, envelopes of rupture points are constructed according to T. L. Smith. It is shown that rupturing stress of covering material based on high-molecular rubbers is far above than of the low-molecular ones. 5. It is shown, that composite filled with optimum mixture of four silica fractions at plasticizer volume fraction 0.05 in the binder fully complies with given requirements to different coverings, especially to road asphalt. 6. Maximum mechanical fracture energy for filled composite material is determined. It is shown, that mechanical fracture energy maximizes when the polymer binder is filled with four-fraction silica. 7. For the first time the authors constructed envelopes of mechanical fracture energies depending on plasticizer volume fraction, fraction composition of polymer composite material and experiment temperature. It is stated, that mechanical characteristics, first of all mechanical fracture energy, maximizes at plasticizer volume fraction 0.05 – 0.3 volume fractions in the binder from operating temperature. 8. It is stated, that mechanical fracture energy of polymer composite material based on high-molecular rubbers is 1000 times higher than of the low-molecular rubber-based one R EFERENCES [1] Ermilov, A. S., Nurullaev, E. M., Mechanical properties of Elastomers filled with solid particles, Mechanics of composite Materials, 48 (3) (2012) 243-252. [2] Garifullin, A., Iblyaminov, F. F., Constructional rubber and methods for determining their mechanical properties, Kazan, (2000). [3] Smith, T. L., Ultimate Tensile Properties of Elastomers, J. Appl. Phys., 35 (1964) 27-34. [4] Ermilov, A. S., Nurullaev, E. M., Numerical Simulation and Derivation of an Equation for Calculation of the Mechanical Fracture Energy of Elastomer Filled with Multifractional Silica // Russian Journal of Applied Chemistry, 87 (4) (2014) 500-508. [5] Smith, T. L., Limited Characteristic of Cross-linked Polumers, J. Appl. Phys., 35 (1964) 27-32. [6] Dick, J. S., Rubber Technology. Compounding and Testing for Performance. Hanser Gardner Publications, Inc., Cincinati, (2010). [7] Mark, Dzh., Ehrman, B., Airich, F., Science and technology of Rubber, Academic Press is an imprint of Elsevier. (2005). [8] Certificate No. 2012613349 RF A Software for Determination and Optimization of Packing Density of Solid Disperse Fillers of Polymer Composite Materials, Ermilov, A. S., Nurullaev, E. M, Duregin, K. A., Priority of 09.04.2012. [9] Smith, T. L., Symposium on stress-strain-time-temperature relationships in materials, Amer. Soc. Test. Mat. Spec. Publ., 325 (1962) 60-89. [10] Smith, T. L., Relation between the structure of elastomers and their tensile strength, in: Mechanical Properties of New Materials [Russian translation], Mir, Moscow, (1966) 174-190. [11] Nurullaev, E. M., Ermilov, A. S., Dependence of mechanical fracture energy of the polymeric composite material from the mixture of filler fractions, Fracture end Structural Integrity, 31 (2015) 120-126. [12] Patent No. 2473581, RF A Waterproof Frost-Resistant Asphalt Covering for Highways, Ermilov, A. S., Nurullaev, E. M., Alikin, V. N., Priority of 31.05.2011.