Investigation of the effect of repeated variable loads on the life cycle of transport structures using polymer composite materials

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Аннотация

The problem of the life cycle of transport structures using polymer composite materials (PCM) is touched upon. It is noted that in the life cycle of transport structures, at the stage of operation, the endurance of structural materials plays a key role. The results of experimental studies of PCM depending on the magnitude of the coefficients of reinforcement with fiberglass reinforcement (SPA) are presented. The influence of the degree of prestress of the SPA on the life cycle of the structural element has been established. It is emphasized that in the study of the life cycle of structures, the coefficient of asymmetry of the external load application cycle is of no small importance. As a result of the study, it was found that with an increase in the coefficient of asymmetry of the application of an external load with a simultaneous increase in the prestress in the SPA, the coefficient of endurance, and, consequently, the life cycle of the element, increases.

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Авторлар туралы

B. Bondarev

Lipetsk State Technical University

Хат алмасуға жауапты Автор.
Email: Lnsp-48@mail.ru

Doctor of Sciences (Engineering) 

Ресей, 30, Moskovskaya Street, Lipetsk, 398055

A. Bondarev

Lipetsk State Technical University

Email: Lnsp-48@mail.ru

Candidate of Sciences (Engineering) 

Ресей, 30, Moskovskaya Street, Lipetsk, 398055

V. Zhidkov

Tambov State Technical University

Email: gidkov_vova_1999@mail.ru

Graduate Student 

Ресей, 106/5, Sovetskaya Street, Tambov, 392000

P. Borkov

Russian State Agrarian University – K.A. Timiryazev Agricultural Academy

Email: borkovpv@mail.ru

Candidate of Sciences (Engineering) 

Ресей, 49, Timiryazevskaya Street, Moscow, 127550

O. Mareeva

Russian State Agrarian University – K.A. Timiryazev Agricultural Academy

Email: o.mareeva@rgau-msha.ru

Candidate of Sciences (Engineering) 

Ресей, 49, Timiryazevskaya Street, Moscow, 127550

I. Popov

Russian State Agrarian University – K.A. Timiryazev Agricultural Academy

Email: i.popov@rgau-msha.ru

Candidate of Sciences (Engineering) 

Ресей, 49, Timiryazevskaya Street, Moscow, 127550

Әдебиет тізімі

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  2. Erofeev V.T., Afonin V.V., Zotkina M.M., Stenechkina K.S, Tyuryakhina T.P., Lazarev A.V. Analysis of properties of polymer composites with various types of fillers. Stroitel’nye Materialy [Construction Materials]. 2024. No. 1–2, pp. 100–109. (In Russian). EDN: ACZEBD. https://doi.org/10.31659/0585-430X-2024-821-1-2-100-109
  3. Gavrilov M.A., Erofeev V.T. Strength and deformation properties of epoxy protective composites. Regional’naya arkhitektura i stroitel’stvo. 2024. No. 1 (58), pp. 59–64. (In Russian). EDN: LAGPSL. https://doi.org/0.54734/20722958_2024_1_59
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  6. Erofeev V.T., Mishchenko N.I., Selyaev V.P., Solomatov V.I. Karkasnyye stroitel’nyye kompozity: V 2-kh chastyakh [Frame construction composites: In 2 parts] Saransk: National Research Ogarev Mordovian State University. 1995. 200 p.
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  8. Selyaev V.P., Nizin D.R., Kanaeva N.S. Quantitative assessment of the kinetics of damage accumulation in the structure of a polymer matrix under the influence of natural climatic factors and tensile loads. Nauchnyy zhurnal stroitel’stva i arkhitektury. 2021. No. 4 (64), pp. 93–102. (In Russian). EDN: AMJJDG. https://doi.org/10.36622/VSTU.2021.64.4.009
  9. Bondarev B.A., Bondarev A.B., Borkov P.V., et al. Polymer composite materials in transition slabs of transport infrastructure structures. Vestnik of Lipetsk State Technical University. 2022. No. 3 (49), pp. 62–71. EDN: OBLZCG. https://doi.org/10.53015/23049235_2022_3_62
  10. Bondarev B.A., Bondarev A.B., Korneev A.D., et al. Cyclic durability of glass-plastic polymer concrete in repaired transport structures. Modern problems of materials science: Collection of scientific papers of the IV All-Russian (national) scientific and practical conference. Lipetsk. February 17, 2023, pp. 328–332. (In Russian). EDN: MENRFM
  11. Bondarev B.A., Korneev A.D., Borkov P.V., Bondarev A.B., Zhidkov V.K., Kopalin D.A. Study of the cyclic durability of fiberglass polymer concrete for the repair and restoration of structures of transport facilities. Stroitel’nye Materialy [Construction Materials]. 2023. No. 1–2, pp. 11–17. (In Russian). EDN: IHFZIE. https://doi.org/10.31659/0585-430X-2023-810-1-2-11-17
  12. Kondrashchenko V.I. Drevesnosteklovoloknistyye kompozitsionnyye shpaly [Wood-glass fiber composite sleepers]. Moscow: Sputnik. 2019. 301 p.

Қосымша файлдар

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Әрекет
1. JATS XML
Жүктеу
2. Fig. 1. Dependency graph Kb,pul – σsp

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Метадеректер
3. Fig. 2. Dependency graph Kb,pul–ρbn: I – σsp=413,4 MPa; II – σsp=551,2 MPa; III – σsp=689 MPa

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Метадеректер
4. Fig. 3. Graph of the change in the relative value of the compressed zone of the PCM from the coefficient of asymmetry of the external load: curves 1–3 – theoretical values; curves 4–6 – experimental values

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Метадеректер

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