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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Almaz I. Valiev, post-graduate student, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Farid R. Shakirzyanov, candidate of physical and mathematical sciences, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Alfred M. Suleymanov, Doctor of Technical Sciences, Professor, Kazan State University of Architecture and Engineering, corr.-m. Academy of Sciences of the Republic of Tatarstan, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Rashit K. Nizamov, doctor of technical sciences, professor, Kazan State University of Architecture and Engineering, academic of Academy of Sciences of the Republic of Tatarstan, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Title of the articleEstimation of stress-strain state of hybrid polymer composites manufactured by vacuum infusion method
Abstract.The development of hybrid polymer composites (with heterofiber filling) for structural purposes is inextricably linked with the need to increase the strength and stiffness characteristics of composites. For successful implementation of hybrid composites in construction practice it is necessary to improve modeling and evaluation of their stress-strain state at various stages of development. The aim of the study is to develop and evaluate the stress-strain state of products from hybrid composites made by vacuum infusion at three-point loading scheme. The objectives of the research are fabrication of composites from fiberglass, carbon fiber, and their hybrids; determination of physical and mechanical characteristics of composites; verification of analytical and numerical model with field tests. Results. Glass fiber-reinforced plastic, carbon fiber-reinforced plastic and hybrid composites with different combination of glass and high-strength carbon fibers and low-viscosity epoxy resin were produced by vacuum infusion method. Tensile, compression, interlayer shear, and three-point bending tests were performed and the physical and mechanical characteristics of the materials were determined, as well as the density, mass loss on ignition of the cured reinforced resins. A numerical model of multilayer composites was developed, the stress-strain state of beams was obtained, and verification of the analytical and numerical model with experiment was carried out under three-point loading scheme. Conclusions. The significance of the obtained results in the construction industry lies in the evaluation of the stress-strain state of hybrid composites for the purpose of further implementation in construction practice and it is recommended in solving scientific and engineering problems.
Keywords.polymer, fiberglass, carbon fiber, hybrid, tension, compression, interlayer shear, three-point bending, vacuum infusion
For citations:Valiev A.I., Shakirzyanov F.R., Suleymanov A.M., Nizamov R.K. Estimation of stress-strain state of hybrid polymer composites manufactured by vacuum infusion method//News KSUAE, 2023, № 4(66), с. 241-254, DOI: 10.52409/20731523_2023_4_241, EDN: QQUTHA


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