APPLICATION OF IMPROVED b-VALUE AND CLUSTERING ANALYSIS FOR STRUCTURAL INTEGRITY ASSESSMENT OF CFRP SPECIMEN UNDER TENSILE LOADING

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F23%3A10254180" target="_blank" >RIV/61989100:27230/23:10254180 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.pan.pl/Content/128413/PDF-MASTER/AMM-2023-3-24-Sofer.pdf" target="_blank" >https://journals.pan.pl/Content/128413/PDF-MASTER/AMM-2023-3-24-Sofer.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.24425/amm.2023.145469" target="_blank" >10.24425/amm.2023.145469</a>

Jazyk výsledku

angličtina

Název v původním jazyce

APPLICATION OF IMPROVED b-VALUE AND CLUSTERING ANALYSIS FOR STRUCTURAL INTEGRITY ASSESSMENT OF CFRP SPECIMEN UNDER TENSILE LOADING

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

APPLICATION OF IMPROVED b-VALUE AND CLUSTERING ANALYSIS FOR STRUCTURAL INTEGRITY ASSESSMENT OF CFRP SPECIMEN UNDER TENSILE LOADING

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/EF17_049%2F0008407" target="_blank" >EF17_049/0008407: Inovativní a aditivní technologie výroby - nová technologická řešení 3D tisku kovů a kompozitních materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Archives of Metallurgy and Materials

ISSN

1733-3490

e-ISSN

2300-1909

Svazek periodika

68

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

7

Strana od-do

1017-1023

Kód UT WoS článku

001106664500017

EID výsledku v databázi Scopus

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