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A. Y. Fedorov, E. B. Galkina

DETERMINATION OF THE ELASTIC CONSTANTS OF BRICKS ON INDUSTRIAL SAMPLES IN FOUR-POINT BENDING TESTS

DOI: 10.17804/2410-9908.2024.5.130-137

The paper considers a variant of determining the mechanical characteristics, namely elastic moduli and Poisson’s ratios, of building bricks in four-point bending tests of industrial samples and measurement of strains by fiber-optic sensors. An example of determining the elastic constants of one of the brick grades in tension and compression is given, with analyzing the maximum errors in the determination of the elastic moduli and Poisson’s ratios, which may occur in the method under consideration.

Acknowledgment: The study was made in the framework of the government task, registration number of the theme 124020700047-3.

Keywords: modulus of elasticity, Poisson's ratio, four-point bending, building materials, fiber optic strain sensors

References:

  1. GOST Р 57349–2016/EN 772-1:2011. (In Russian).
  2. GOST 8462–85. (In Russian).
  3. Segura, J., Pelà, L., and Roca, P. Monotonic and cyclic testing of clay brick and lime mortar masonry in compression. Construction and Building Materials, 2018, 193, 453–466. DOI: 10.1016/j.conbuildmat.2018.10.198.
  4. Chatterjee, P., Ghosh, A., and Bhanja, S. Compressive stress–strain behavior of masonry prisms made of low elastic modulus burnt clay bricks. Journal of Building Engineering, 2023, 78, 107561. DOI: 10.1016/j.jobe.2023.107561.
  5. Cabané, A., Pelà, L., and Roca, P. Effect of cross section aspect ratio and bearing surfaces treatment on the compressive strength of solid fired clay brick specimens. Construction and Building Materials, 2023, 383, 131397. DOI: 10.1016/j.conbuildmat.2023.131397.
  6. EN 1015–11:2019. European Committee for Standardization, Brussels, Belgium, 2019.
  7. Grazzini, R., Misseri, G., and Rovero, L. A bi-modulus material model for bending test on NHL3.5 lime mortar. Materials, 2023, 16 (2), 486. DOI: 10.3390/ma16020486.
  8. Chang, C.-W., Hsu, F.-L., Chang, F.-C., and Huang, Y.-S. Measuring elastic constants of wood through static bending using a strain gauge. European Journal of Wood and Wood Products, 2022, 80 (3), 611–620. DOI: 10.1007/s00107-021-01771-6.
  9. Matveenko, V., Serovaev, G., Fedorov, A., Galkina, E., and Zaitsev, A. Determination of elastic moduli and Poisson’s ratios of bi-modulus materials based on the results of four-point bending test. Materials and Structures, 2024, 57 (4), 96. DOI: 10.1617/s11527-024-02373-3.


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Article reference

Fedorov A. Y., Galkina E. B. Determination of the Elastic Constants of Bricks on Industrial Samples in Four-Point Bending Tests // Diagnostics, Resource and Mechanics of materials and structures. - 2024. - Iss. 5. - P. 130-137. -
DOI: 10.17804/2410-9908.2024.5.130-137. -
URL: http://eng.dream-journal.org/issues/content/article_474.html
(accessed: 12/30/2024).

 

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Founder:  Institute of Engineering Science, Russian Academy of Sciences (Ural Branch)
Chief Editor:  S.V. Smirnov
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