Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Integrity of materials and structures Vol. 20, No. 75 (2026)

Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques)

Author and affiliation details
  • Mikhail Bannikov Corresponding author Institute of Continuous Media Mechanics of the Ural Branch of the Russian Academy of Sciences, Perm, Russia ORCID iD0000-0002-5737-1422 mbannikov@icmm.ru
  • Yuriy Bayandin Institute of Continuous Media Mechanics of the Ural Branch of the Russian Academy of Sciences, Perm, Russia ORCID iD0000-0002-1824-1940
  • Aleksandr Nikityuk Institute of Continuous Media Mechanics of the Ural Branch of the Russian Academy of Sciences, Perm, Russia ORCID iD0000-0001-6777-7525
  • Sergey Uvarov Institute of Continuous Media Mechanics of the Ural Branch of the Russian Academy of Sciences, Perm, Russia
  • Oleg Naimark Institute of Continuous Media Mechanics of the Ural Branch of the Russian Academy of Sciences, Perm, Russia
DOI
10.3221/IGF-ESIS.75.17
Pages
238-249
Published
Licence
CC BY 4.0
Published inVol. 20, No. 75 (2026)Go to the issue

Abstract

Predicting the failure of carbon fiber composites remains a challenge due to the complex evolution of damage, where the collective behavior of defects like pores and microcracks dictates material strength. The objective of this work is to elucidate the transition from damage accumulation to final failure under cyclic loading by analyzing the integral structural characteristics of the material. A methodology combining microtomography and digital image correlation (DIC) was employed to monitor damage evolution in situ. The analysis of DIC-derived strain fields during block cyclic loading pinpointed the critical transition stage to failure. Furthermore, Bayesian Gaussian Mixture models were used for threshold segmentation and cluster analysis, revealing that mechanical loading induces distinct populations of small and large pores. The main results show that while the overall pore orientation distribution remains consistent, the clustering and ordering of pores evolve differently under cyclic loads compared to quasi-static conditions. Specifically, unloaded samples exhibit three distinct pore clusters based on orientation, a structure that is altered by cyclic loading through pore expansion and coalescence, which ultimately reduces specimen strength. These insights advance the understanding of damage criticality in composites and provide a foundation for developing more accurate predictive models.

Keywords

Article history

  1. ReceivedUntil the next stage: 25 days
  2. Revision requestedUntil the next stage: 9 days
  3. RevisedUntil the next stage: 21 days
  4. AcceptedUntil the next stage: 8 days
  5. Published

How to cite

APA

Bannikov, M., Bayandin, Y., Nikityuk, A., Uvarov, S., & Naimark, O. (2025). Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques). Fracture and Structural Integrity, 20(75), 238–249. https://doi.org/10.3221/IGF-ESIS.75.17

IEEE

M. Bannikov, Y. Bayandin, A. Nikityuk, S. Uvarov, and O. Naimark, “Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques),” Fracture and Structural Integrity, vol. 20, no. 75, pp. 238–249, 2025, doi: 10.3221/IGF-ESIS.75.17.

MLA

Bannikov, Mikhail, et al. “Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques).” Fracture and Structural Integrity, vol. 20, no. 75, 2025, pp. 238–249. https://doi.org/10.3221/IGF-ESIS.75.17.

Chicago

Bannikov, Mikhail, Yuriy Bayandin, Aleksandr Nikityuk, Sergey Uvarov, and Oleg Naimark. 2025. “Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques).” Fracture and Structural Integrity 20 (75): 238–249. https://doi.org/10.3221/IGF-ESIS.75.17.

Harvard

Bannikov, M., Bayandin, Y., Nikityuk, A., Uvarov, S. and Naimark, O. (2025) ‘Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques)’, Fracture and Structural Integrity, 20(75), pp. 238–249. doi: 10.3221/IGF-ESIS.75.17.

Vancouver

Bannikov M, Bayandin Y, Nikityuk A, Uvarov S, Naimark O. Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques). Fracture and Structural Integrity. 2025;20(75):238-249. doi:10.3221/IGF-ESIS.75.17

BibTeX

@article{bannikov2025, author = {Bannikov, Mikhail and Bayandin, Yuriy and Nikityuk, Aleksandr and Uvarov, Sergey and Naimark, Oleg}, title = {Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques)}, journal = {Fracture and Structural Integrity}, year = {2025}, volume = {20}, number = {75}, pages = {238--249}, doi = {10.3221/IGF-ESIS.75.17}, url = {https://doi.org/10.3221/IGF-ESIS.75.17}, issn = {1971-8993} }

RIS

TY - JOUR AU - Bannikov, Mikhail AU - Bayandin, Yuriy AU - Nikityuk, Aleksandr AU - Uvarov, Sergey AU - Naimark, Oleg TI - Experimental field analysis of damage-failure transition in composite material with a stress concentrator under cyclic loading (application of DIC and X-ray tomography techniques) JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2025 DA - 2025/11/01 VL - 20 IS - 75 SP - 238 EP - 249 DO - 10.3221/IGF-ESIS.75.17 UR - https://doi.org/10.3221/IGF-ESIS.75.17 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2025 Mikhail Bannikov, Yuriy Bayandin, Aleksandr Nikityuk, Sergey Uvarov, Oleg Naimark.

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

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