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dc.contributor.authorJung, Doyun-
dc.contributor.authorYu, Woong-Ryeol-
dc.contributor.authorNa, Wonjin-
dc.date.accessioned2024-01-19T14:30:41Z-
dc.date.available2024-01-19T14:30:41Z-
dc.date.created2021-10-21-
dc.date.issued2021-07-
dc.identifier.issn1996-1944-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/116806-
dc.description.abstractThis study analyzed failure behavior using Ib-values obtained from acoustic emission (AE) signals. Carbon fiber/epoxy specimens were fabricated and tested under tensile loads, during which AE signals were collected. The dominant peak frequency exhibited a specific range according to fracture mode, depending on the fiber structures. Cross-ply specimens, with all fracture modes, were used and analyzed using b- and Ib-values. The b-values decreased over the specimens' entire lifetime. In contrast, the Ib-values decreased to 60% of the lifetime, and then increased because of the different fracture behaviors of matrix cracking and fiber fracture, demonstrating the usefulness of Ib-values over b-values. Finally, it was confirmed that abnormal conditions could be analyzed more quickly using failure modes classified by Ib-values, rather than using full AE data.-
dc.languageEnglish-
dc.publisherMDPI Open Access Publishing-
dc.titleInvestigation of Ib-Values for Determining Fracture Modes in Fiber-Reinforced Composite Materials by Acoustic Emission-
dc.typeArticle-
dc.identifier.doi10.3390/ma14133641-
dc.description.journalClass1-
dc.identifier.bibliographicCitationMaterials, v.14, no.13-
dc.citation.titleMaterials-
dc.citation.volume14-
dc.citation.number13-
dc.description.isOpenAccessY-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000671189000001-
dc.identifier.scopusid2-s2.0-85109632056-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryMetallurgy & Metallurgical Engineering-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.relation.journalWebOfScienceCategoryPhysics, Condensed Matter-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaMetallurgy & Metallurgical Engineering-
dc.relation.journalResearchAreaPhysics-
dc.type.docTypeArticle-
dc.subject.keywordPlusWAVELET TRANSFORM-
dc.subject.keywordPlusFAILURE MODES-
dc.subject.keywordPlusB-VALUE-
dc.subject.keywordPlusTENSILE-
dc.subject.keywordPlusDAMAGE-
dc.subject.keywordPlusSIGNALS-
dc.subject.keywordAuthorfiber-reinforced composites-
dc.subject.keywordAuthoracoustic emission-
dc.subject.keywordAuthorfracture-
dc.subject.keywordAuthorIb-values-
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KIST Article > 2021
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