Application of Improved b-Value and Clustering Analysis for Structural Integrity Assessment of CFRP Specimen under Tensile Loading

• Autorzy: Šofer Michal , Kwiatoń Paweł , Pavlíček Pavel

Identyfikatory

DOI

10.24425/amm.2023.145469

• Języki publikacji: EN

Abstrakty

EN

In the present study, the evolution of different failure mechanisms in carbon fiber reinforced polymer composites is being investigated using acoustic emission technique, unsupervised clustering technique and improved b-value analysis. The experimental part involved the realization of tensile tests of different materials, namely samples with [0/90]_2S uniaxial layer configuration and [0/90]_2S twill fabric samples. Both types of tests were monitored using one wideband acoustic emission sensor, while the tensile tests of twill fabric samples were additionally supplemented with resonant acoustic emission sensor to perform a comparative analysis between datasets from resonant/wideband acoustic emission sensor. The comparative study itself was preceded by the failure mechanisms characterization process, which has been performed on the tensile test dataset of [0/90]_2S layer configuration with the contribution of clustering technique. The subsequent analysis of the twill fabric resonant/wideband acoustic emission sensor datasets included the improved b-value technique, which relates the magnitude of fracture with the slope of the amplitude distribution. The presented results, especially in terms of the improved b-value technique applied to individual clusters, show enhanced ability to assess in more detail the actual structural integrity depending on the applied load.

Słowa kluczowe

EN

CFRP composite; acoustic emission; improved b-value analysis

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2023
• Tom: Vol. 68, iss. 3
• Strony: 1017--1023
• Opis fizyczny: Bibliogr. 24 poz., fot., rys., tab., wzory

Twórcy

autor

Šofer Michal

• VŠB-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Applied Mechanics, 17. listopadu 15/2127, 708 33 Ostrava-Poruba, Czech Republic

• https://orcid.org/0000-0002-9253-5760

autor

Kwiatoń Paweł

• Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Department of Mechanics and Machine Design Fundamentals, 73 Dąbrowskiego Str., 42-201 Częstochowa, Poland

• https://orcid.org/0000-0002-0067-0384

autor

Pavlíček Pavel

• VŠB-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Applied Mechanics, 17. listopadu 15/2127, 708 33 Ostrava-Poruba, Czech Republic

• https://orcid.org/0000-0002-0937-5509

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