Evaluation of fiber orientation in a composite and its effect on material behavior
- The reinforcement of concrete with polymer fibers provides resistance to crack formation. The orientation distribution of these fibers has a significant influence on the mechanical behavior of the material. To optimize material performance, micromechanical models that are capable of making accurate predictions of the mechanical behavior of composite materials are needed. These models must be calibrated using experimental results from microstructural characterization. For the fiber orientation distribution analysis in the present study, computed tomography (CT) data were used to evaluate the properties of a fiber-reinforced cement mortar. The results have indicated that the fibers in this material have highly anisotropic orientation characteristics and that there is a clear tendency for the polymer fibers to agglomerate during mixing and casting. The incorporation of this experimental data into micromechanical models will increase the accuracy of those models for material simulation andThe reinforcement of concrete with polymer fibers provides resistance to crack formation. The orientation distribution of these fibers has a significant influence on the mechanical behavior of the material. To optimize material performance, micromechanical models that are capable of making accurate predictions of the mechanical behavior of composite materials are needed. These models must be calibrated using experimental results from microstructural characterization. For the fiber orientation distribution analysis in the present study, computed tomography (CT) data were used to evaluate the properties of a fiber-reinforced cement mortar. The results have indicated that the fibers in this material have highly anisotropic orientation characteristics and that there is a clear tendency for the polymer fibers to agglomerate during mixing and casting. The incorporation of this experimental data into micromechanical models will increase the accuracy of those models for material simulation and optimization.…
Autor*innen: | Tatiana MishurovaORCiD |
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Koautor*innen: | Fabien Léonard, Tyler Oesch, Dietmar Meinel, Giovanni Bruno, Natalia Rachmatulin, Patrick Fontana, I. Sevostianov |
Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Graue Literatur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Deutsch): | The e-journal of nondestructive testing & ultrasonics |
Jahr der Erstveröffentlichung: | 2017 |
Verlag: | NDT.net |
Verlagsort: | Kirchwald |
Jahrgang/Band: | 22 |
Ausgabe/Heft: | 3 |
Aufsatznummer: | 20818 |
Erste Seite: | 1 |
Letzte Seite: | 7 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Computed tomography; Fiber-reinforced concrete; Orientation distribution |
Veranstaltung: | 7th Conference on Industrial Computed Tomography (iCT 2017) |
Veranstaltungsort: | Leuven, Belgium |
Beginndatum der Veranstaltung: | 07.02.2017 |
Enddatum der Veranstaltung: | 09.02.2017 |
URL: | http://www.ndt.net/?id=20818 |
ISSN: | 1435-4934 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 14.03.2017 |
Referierte Publikation: | Nein |