Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Fatigue and Fracture of non metallic materials Vol. 19, No. 71 (2025)

Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life

Author and affiliation details
  • Anastasia Lykova Corresponding author Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia ORCID iD0000-0003-4873-6351 cem.lykova@gmail.com
  • Dmitriy Lobanov Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia ORCID iD0000-0003-1948-436X
  • Alexander Pankov Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia ORCID iD0000-0001-7505-1484
  • Mikhail Ugolnikov Center of Experimental Mechanics, Perm National Research Polytechnic University, Russia ORCID iD0009-0003-9997-1615
DOI
10.3221/IGF-ESIS.71.01
Pages
1-10
Published
Licence
CC BY 4.0
Published inVol. 19, No. 71 (2025)Go to the issue

Abstract

This paper explores the effect of internal technological defects on the fatigue life of carbon fiber reinforced plastic (CFRP) under simple loading waveforms. One conducted experiments on CFRP specimens with embedded artificial defects, including delamination’s (circular dry-spot) and wrinkling. Following quasi-static tests, one developed a fatigue testing program using triangular and sine waveforms. The findings indicate that these simple waveforms do not significantly affect the fatigue resistance of defect-free CFRP or CFRP with internal technological defects. The presence of the wrinkling defect significantly diminishes the fatigue resistance of CFRP. However, constructing fatigue life curves in relative terms reveals that the reduction in fatigue properties is directly related to a decrease in strength properties. In the case of delamination (dry-spot) defects, a reduction in fatigue life by approximately 2.5 times was observed across the tested range.

Keywords

Article history

  1. ReceivedUntil the next stage: 50 days
  2. RevisedUntil the next stage: 4 days
  3. AcceptedUntil the next stage: 5 days
  4. Published

Statements

Funding

This research was funded by Ministry of science and higher education of the Russian Federation (Project No FSNM-2024-0013).

How to cite

APA

Lykova, A., Lobanov, D., Pankov, A., & Ugolnikov, M. (2024). Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life. Fracture and Structural Integrity, 19(71), 1–10. https://doi.org/10.3221/IGF-ESIS.71.01

IEEE

A. Lykova, D. Lobanov, A. Pankov, and M. Ugolnikov, “Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life,” Fracture and Structural Integrity, vol. 19, no. 71, pp. 1–10, 2024, doi: 10.3221/IGF-ESIS.71.01.

MLA

Lykova, Anastasia, et al. “Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life.” Fracture and Structural Integrity, vol. 19, no. 71, 2024, pp. 1–10. https://doi.org/10.3221/IGF-ESIS.71.01.

Chicago

Lykova, Anastasia, Dmitriy Lobanov, Alexander Pankov, and Mikhail Ugolnikov. 2024. “Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life.” Fracture and Structural Integrity 19 (71): 1–10. https://doi.org/10.3221/IGF-ESIS.71.01.

Harvard

Lykova, A., Lobanov, D., Pankov, A. and Ugolnikov, M. (2024) ‘Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life’, Fracture and Structural Integrity, 19(71), pp. 1–10. doi: 10.3221/IGF-ESIS.71.01.

Vancouver

Lykova A, Lobanov D, Pankov A, Ugolnikov M. Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life. Fracture and Structural Integrity. 2024;19(71):1-10. doi:10.3221/IGF-ESIS.71.01

BibTeX

@article{lykova2024, author = {Lykova, Anastasia and Lobanov, Dmitriy and Pankov, Alexander and Ugolnikov, Mikhail}, title = {Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life}, journal = {Fracture and Structural Integrity}, year = {2024}, volume = {19}, number = {71}, pages = {1--10}, doi = {10.3221/IGF-ESIS.71.01}, url = {https://doi.org/10.3221/IGF-ESIS.71.01}, issn = {1971-8993} }

RIS

TY - JOUR AU - Lykova, Anastasia AU - Lobanov, Dmitriy AU - Pankov, Alexander AU - Ugolnikov, Mikhail TI - Effect of Internal Technological Defects and Loading Waveform on Structural Composite Fatigue Life JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2024 DA - 2024/10/06 VL - 19 IS - 71 SP - 1 EP - 10 DO - 10.3221/IGF-ESIS.71.01 UR - https://doi.org/10.3221/IGF-ESIS.71.01 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2024 Anastasia Lykova, Dmitriy Lobanov, Alexander Pankov, Mikhail Ugolnikov.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

Open Access Statement

Fracture and Structural Integrity (F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit, providing a link to the license, and indicating if changes were made.

Similar articles

Most read articles by the same author(s)