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Analyzing the Processes of Carbon Fiber Sample Failure Using Acoustic Emission and Strain Gaging

  • ACOUSTIC METHODS
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Abstract—

Static break-down tests were carried out with samples made of carbon fiber plastics. Testing for defects was performed using acoustic emission and strain gaging methods. Four wire strain gages were glued to each sample in the aperture area, and four piezoelectric sensors were installed along aperture edges to form a working testing zone. Recording the signals associated with the failure of the composite material of the samples and their location were carried out by an acoustic emission system. During the tests, a strain gage system recorded loads and deformations that lead to the initiation of destruction process in carbon fiber plastics. The destruction type was determined based on analyzing the microsections made from the signal location zone in the sample. The main informative parameters of acoustic emission signals were associated with the destruction type of carbon fiber plastics.

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Funding

This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Authors and Affiliations

  1. Chaplygin Siberian Research Institute of Aviation, 630051, Novosibirsk, Russia

    L. N. Stepanova & S. I. Kabanov

  2. Siberian Transport University, 630049, Novosibirsk, Russia

    V. V. Chernova

Authors
  1. L. N. Stepanova
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  2. V. V. Chernova
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  3. S. I. Kabanov
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Correspondence to L. N. Stepanova.

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Stepanova, L.N., Chernova, V.V. & Kabanov, S.I. Analyzing the Processes of Carbon Fiber Sample Failure Using Acoustic Emission and Strain Gaging. Russ J Nondestruct Test 59, 743–752 (2023). https://doi.org/10.1134/S1061830923700456

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  • DOI: https://doi.org/10.1134/S1061830923700456

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