Influence of operational factors on the main physical and mechanical properties of a fiberglass product VPS-31

Popov J.O., Kolokoltseva T.V., Gromova A.A., Gusev Y.A.
UDC
678.067.5
DOI
10.18577/2307-6046-2021-0-11-82-90
Article PDF (Russian) (759.02 KB)
How to cite
Popov J.O., Kolokoltseva T.V., Gromova A.A., Gusev Y.A. Influence of operational factors on the main physical and mechanical properties of a fiberglass product VPS-31 // Proceedings of VIAM. 2021. No. 11. DOI: 10.18577/2307-6046-2021-0-11-82-90. URL: https://test.viam.ru/en/journal/2021/11/8
Keywords
fiberglass, prepreg, binder, blade spar, spiral winding, winding angle, glass transition temperature, physical and mechanical properties.
Abstract

 The results of the work performed at NRC «Kurchatov Institute» – VIAM in research on aspects of the influence of operational factors (high humidity and temperature) on the physic-mechanical properties of glass fiber composite VPS-31. The main physical and mechanical properties of samples obtained from the spar of the helicopter's main blade are presented (including the glass transition temperature, strength and modulus of elasticity in tension, elongation at break at various test temperatures in the initial state and after exposure to moisture). We studied the fragments of the spar, successfully passed thermocyclic tests («day/night»). The results of the research confirmed the possibility of exploitation of glass fiber composite VPS-31in a humid tropical climate.

Reference list
  1. Kablov E.N., Startsev V.O., Inozemtsev A.A. The moisture absorption of structurally similar samples from polymer composite materials in open climatic conditions with application of thermal spikes. Aviacionnye materialy i tehnologii, 2017, no. 2 (47), pp. 56–68. DOI: 10.18577/2071-9140-2017-0-2-56-68.
  2. Kablov E.N., Startsev V.O. Climatic aging of polymer composite materials for aviation purposes. I. Assessment of the influence of significant influencing factors. Deformatsiya i razrusheniye materialov, 2019, no. 12, pp. 7–16.
  3. Kablov E.N., Startsev V.O. Climatic aging of polymer composite materials for aviation purposes. II. Development of research methods for the early stages of aging. Deformatsiya i razrusheniye materialov, 2020, no. 1, pp. 15–21.
  4. Kablov E.N., Startsev V.O. Systematical analysis of the climatics influence on mechanical properties of the polymer composite materials based on domestic and foreign sources (review). Aviacionnye materialy i tehnologii, 2018, no. 2 (51), pp. 47–58. DOI: 10.18577/2071-9140-2018-0-2-47-58.
  5. Liew Y.S., Tan K.H. Durability of GFRP composites under tropical climate. Fiber-Reinforced Polymer Reinforcement for Concrete Structures. Singapore, 2003, pp. 769–778. DOI: 10.1142/9789812704863_0072.
  6. Abramova M.G., Lutsenko A.N., Varchenko E.A. Concerning the aspects of validation of climate resistance of airborne materials at all life cycle stages (review). Aviacionnye materialy i tehnologii, 2020, no. 1 (58), pp. 86–94. DOI: 10.18577/2071-9140-2020-0-1-86-94.
  7. Laptev A.B., Barbotko S.L., Nikolaev E.V. The main research areas of the persistence properties of materials under the influence of climatic and operational factors. Aviacionnye materialy i tehnologii, 2017, no. S, pp. 547–561. DOI: 10.18577/2071-9140-2017-0-S-547-561.
  8. Popov Yu.O., Kolokoltseva T.V., Khrulkov A.V. The new generation of materials and technologies for helicopter blade spars. Aviacionnye materialy i tehnologii, 2014, no. S2, pp. 5–9. DOI: 10.18577/2071-9140-2014-0-S2-5-9.
  9. Khaskov M.A. On the specifics of determining the glass transition temperature of moisture-saturated polymer composite materials by the method of dynamic mechanical analysis. Zavodskaya laboratoriya. Diagnostika materialov, 2016, vol. 82, no. 1, pp. 25–31.
  10. Laptev A.B., Nikolayev E.V., Kolpachkov E.D. Thermodynamic characteristics of aging of polymeric composite materials under conditions of real exploitation. Aviaсionnye materialy i tehnologii, 2018, no. 3, pp. 80–88. DOI: 10.18577/2071-9140-2018-0-3-80-88.
  11. Composite materials handbook. SAE International, 2012, vol. 1. Polymer matrix composites guidelines for characterization of structural materials, pp. 29–33.
  12. Laptev A.B., Barbotko S.L., Nikolaev E.V., Skirta A.A. Statistical processing of the results of climatic tests of fiberglass. Plasticheskiye massy, 2016, no. 3-4, pp. 58–64.
  13. Ivchin V.A., Nikiforov V.A., Samsonov K.Yu. Influence of different variants of main rotor blades on X-shaped tail rotor of a helicopter. Nauchnyy vestnik MGTU GA, 2018, vol. 21, no. 1, pp. 114–123. DOI: 10.26467/2079-0619-2018-21-1-114-123.
  14. Slyusar B.N., Fleck M.B., Goldberg E.S. Helicopter technology. Technology for the production of helicopter blades and aircraft structures from polymer composite materials. Rostov-on-Don: SSC RAS Publishing House, 2013, pp. 153–199.
  15. Potter K., Langer C., Hodgkiss B., Lamb S. Sources of variability in uncured aerospace grade unidirectional carbon fiber epoxy preimpregnate. Сomposites. Part A. 2007, vol. 38, is. 3, pp. 905–916. DOI: 10.1016/j.compositesa.2006.07.010.