Rödel, Jürgen ; Kelly, J. F. ; Stoudt, M. R. ; Bennison, S. J. (1991)
A Loading Device for Fracture Testing of Compact Tension Specimen in the SEM.
In: SCANNING MICROSCOPY, 5 (1)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A loading device for performing fracture experiments on compact tension specimens in the SEM has been designed. Its key elements are a piezoelectric translator for applying controlled displacements to the loading points on the specimen and a load cell to measure applied loads. The effective transmission of displacement from the piezoelectric driver to the specimen was found to be the major mechanical design problem. The peripheral equipment includes a function generator and a high voltage amplifier that drives the piezoelectric translator as well as a video overlay and standard video equipment to record the image continuosuly during the course of the experiment. A case study on alumina describes qualitative observations on the toughening mechanism, crack-interface bridging, operating in this material. Quantitative information pertaining to the closure stresses associated with this toughening mode can be obtained by measuring the crack profile.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 1991 |
| Autor(en): | Rödel, Jürgen ; Kelly, J. F. ; Stoudt, M. R. ; Bennison, S. J. |
| Art des Eintrags: | Bibliographie |
| Titel: | A Loading Device for Fracture Testing of Compact Tension Specimen in the SEM |
| Sprache: | Englisch |
| Publikationsjahr: | 13 März 1991 |
| Verlag: | SCANNING MICROSCOPY INT, PO BOX 66507, AMF O'HARE, CHICAGO, IL 60666 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | SCANNING MICROSCOPY |
| Jahrgang/Volume einer Zeitschrift: | 5 |
| (Heft-)Nummer: | 1 |
| Kurzbeschreibung (Abstract): | A loading device for performing fracture experiments on compact tension specimens in the SEM has been designed. Its key elements are a piezoelectric translator for applying controlled displacements to the loading points on the specimen and a load cell to measure applied loads. The effective transmission of displacement from the piezoelectric driver to the specimen was found to be the major mechanical design problem. The peripheral equipment includes a function generator and a high voltage amplifier that drives the piezoelectric translator as well as a video overlay and standard video equipment to record the image continuosuly during the course of the experiment. A case study on alumina describes qualitative observations on the toughening mechanism, crack-interface bridging, operating in this material. Quantitative information pertaining to the closure stresses associated with this toughening mode can be obtained by measuring the crack profile. |
| Freie Schlagworte: | BRITTLE MATERIALS; CRACK-RESISTANCE; CERAMICS; ALUMINA |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 13 Jun 2012 12:26 |
| Letzte Änderung: | 05 Mär 2013 10:01 |
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