Quantifying Damage Evolution in Concrete: Combining Acoustic Emission and Ultrasonic Testing under Uniaxial Loading

  • Active-source ultrasonic monitoring using ultrasonic pulse velocity measurements and coda wave interferometry (CWI) can provide information about the evolution elastic properties of concrete with increasing damage. The acoustic emission (AE), a passive method based on "listening” to the radiation of elastic waves in solids caused by irreversible changes within the material structure, gives the first indications of microstructural changes and microcracking. The question is: how the registered microcracking activity alters the elastic properties of concrete? Our study aims to quantify the connection between the evolution of AE events and the overall elastic properties of concrete, assessed via active-source ultrasonic testing. We analyze the spatiotemporal evolution of AE events, changes in wave propagation speed, and nonlinear effects during stepwise quasi-static loading/unloading of concrete specimens. By integrating CWI with AE analysis, we achieve a comprehensive assessment of theActive-source ultrasonic monitoring using ultrasonic pulse velocity measurements and coda wave interferometry (CWI) can provide information about the evolution elastic properties of concrete with increasing damage. The acoustic emission (AE), a passive method based on "listening” to the radiation of elastic waves in solids caused by irreversible changes within the material structure, gives the first indications of microstructural changes and microcracking. The question is: how the registered microcracking activity alters the elastic properties of concrete? Our study aims to quantify the connection between the evolution of AE events and the overall elastic properties of concrete, assessed via active-source ultrasonic testing. We analyze the spatiotemporal evolution of AE events, changes in wave propagation speed, and nonlinear effects during stepwise quasi-static loading/unloading of concrete specimens. By integrating CWI with AE analysis, we achieve a comprehensive assessment of the evolution of the sample's damage throughout the entire loading process. Our findings underscore the complementary nature of these methods, revealing that a singular approach may not provide a complete picture of the extent of damage.zeige mehrzeige weniger

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Metadaten
Autor*innen:Anna SkłodowskaORCiD
Koautor*innen:Parisa Shokouhi
Dokumenttyp:Vortrag
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2025
Organisationseinheit der BAM:8 Zerstörungsfreie Prüfung
8 Zerstörungsfreie Prüfung / 8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:Acoustic Emission; CODA; Concrete; Passive/active ultrasound
Themenfelder/Aktivitätsfelder der BAM:Infrastruktur
Infrastruktur / Verkehrsinfrastrukturen
Veranstaltung:Talk at Penn State University
Veranstaltungsort:Old Main, University Park, PA, USA
Beginndatum der Veranstaltung:09.05.2025
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:06.06.2025
Referierte Publikation:Nein
Eingeladener Vortrag (wissenschaftliche Konferenzen):Nein
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