Strength of composite structural parts - role of the fiber/matrix interface
- The strength of laminates distinctly depends on the transverse strength of the laminas. The transverse failure is dominated by the adhesion between fiber and matrix. Usual strength criteria however do not take into account the adhesive strength explicitly. The determination of the interface strength is performed on the micromechanical scale using single fiber specimens. The fibers are loaded under off-axis loading while the debonding is monitored under a microscope. The stresses acting in the Interface are calculated by finite element analyses. It is found that for off-axial angles up to 35° interfacial debonding is the dominant failure mode while fiber breakage takes place at lower angles. The occurrence of fiber breakage and debonding under off-axis loading shows that the restriction to two potential failure planes - perpendicular or parallel to the fibers - as applied in common failure criteria has to be put in question.
MetadatenAutor*innen: | Christian Marotzke |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
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Veröffentlichungsform: | Verlagsliteratur |
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Sprache: | Englisch |
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Titel des übergeordneten Werkes (Englisch): | SEICO 11 - SAMPE Europe - 32nd International technical conference - New Material Characteristics to cover New Application Needs (Proceedings) |
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Jahr der Erstveröffentlichung: | 2011 |
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Ausgabe/Heft: | Session 3B |
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Erste Seite: | 250 |
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Letzte Seite: | 257 |
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Freie Schlagwörter: | Adhesion; Composites; Strength |
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Veranstaltung: | SEICO 11 - SAMPE Europe - 32nd International technical conference |
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Veranstaltungsort: | Paris, France |
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Beginndatum der Veranstaltung: | 28.03.2011 |
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Enddatum der Veranstaltung: | 29.03.2011 |
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ISBN: | 978-3-9523565-3-1 |
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Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
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Datum der Freischaltung: | 19.02.2016 |
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Referierte Publikation: | Nein |
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