Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Structural Integrity and Safety: Experimental and Numerical Perspectives Vol. 17, No. 65 (2023)

Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP

Author and affiliation details
  • Dmitriy Lobanov Corresponding author Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia cem.lobanov@gmail.com
  • Stanislav Slovikov Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia ORCID iD0000-0003-3884-3882
  • Ekaterina Lunegova Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia
DOI
10.3221/IGF-ESIS.65.06
Pages
74-87
Published
Licence
CC BY 4.0
Published inVol. 17, No. 65 (2023)Go to the issue

Abstract

The use of carbon-fiber composite materials (CFRP) in critical cases implies an increase in the resistance to the stability of their mechanical properties. For the purpose of in-depth analysis of defects in the experiments, an integrated approach to mechanical flaw detection and testing of CFRP is used. To determine the parameters of defects in ultrasonic diagnostic sensors and the method of infrared thermography. The main technological defects of structural carbon fiber in samples of the internal "glueline defect", are three geometric shapes (circle, square, rectangle) and a "buckling" inner layer. As a result of flaw detection of individual samples by ultrasonic diagnostics, data were obtained on the shape and size of defects such as "glueline defect" and "buckling". As a result of the study, tensile testing of the samples with and without defects was carried out using the Vic 3D system, the AMSY-6 acoustic emission system, and the FLIR SC7700M thermal imaging system. The tensile strength, elastic modulus, Poisson's ratio, and maximum fracture strains of the studied CFRP without defects and with defects are obtained. The effect of defective zones on the main mechanical parameters is determined. The investigated defects lead to a decrease in strength and elastic characteristics by at least 15% and 5%, respectively.

Keywords

Article history

  1. ReceivedUntil the next stage: 33 days
  2. Revision requestedUntil the next stage: 59 days
  3. RevisedUntil the next stage: 0 days
  4. AcceptedUntil the next stage: 55 days
  5. Published

About the authors

Stanislav Slovikov

Center of Experimental Mechanics, Senior Researcher

Ekaterina Lunegova

Perm National Research Polytechnic University

How to cite

APA

Lobanov, D., Slovikov, S., & Lunegova, E. (2023). Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP. Fracture and Structural Integrity, 17(65), 74–87. https://doi.org/10.3221/IGF-ESIS.65.06

IEEE

D. Lobanov, S. Slovikov, and E. Lunegova, “Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP,” Fracture and Structural Integrity, vol. 17, no. 65, pp. 74–87, 2023, doi: 10.3221/IGF-ESIS.65.06.

MLA

Lobanov, Dmitriy, et al. “Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP.” Fracture and Structural Integrity, vol. 17, no. 65, 2023, pp. 74–87. https://doi.org/10.3221/IGF-ESIS.65.06.

Chicago

Lobanov, Dmitriy, Stanislav Slovikov, and Ekaterina Lunegova. 2023. “Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP.” Fracture and Structural Integrity 17 (65): 74–87. https://doi.org/10.3221/IGF-ESIS.65.06.

Harvard

Lobanov, D., Slovikov, S. and Lunegova, E. (2023) ‘Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP’, Fracture and Structural Integrity, 17(65), pp. 74–87. doi: 10.3221/IGF-ESIS.65.06.

Vancouver

Lobanov D, Slovikov S, Lunegova E. Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP. Fracture and Structural Integrity. 2023;17(65):74-87. doi:10.3221/IGF-ESIS.65.06

BibTeX

@article{lobanov2023, author = {Lobanov, Dmitriy and Slovikov, Stanislav and Lunegova, Ekaterina}, title = {Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP}, journal = {Fracture and Structural Integrity}, year = {2023}, volume = {17}, number = {65}, pages = {74--87}, doi = {10.3221/IGF-ESIS.65.06}, url = {https://doi.org/10.3221/IGF-ESIS.65.06}, issn = {1971-8993} }

RIS

TY - JOUR AU - Lobanov, Dmitriy AU - Slovikov, Stanislav AU - Lunegova, Ekaterina TI - Influence of Internal Technological Defects on the Mechanical Properties of Structural CFRP JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2023 DA - 2023/06/22 VL - 17 IS - 65 SP - 74 EP - 87 DO - 10.3221/IGF-ESIS.65.06 UR - https://doi.org/10.3221/IGF-ESIS.65.06 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2023 Dmitriy Lobanov, Stanislav Slovikov, Ekaterina Lunegova.

Copyright 
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