Christmann, J. ; Müller, R. ; Webber, Kyle G. ; Isaia, Daniel ; Schader, Florian H. ; Kipfstuhl, S. ; Freitag, J. ; Humbert, A. (2015)
Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core.
In: Earth System Science Data, 7
doi: 10.1594/PANGAEA.835321.
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Abstract. The critical fracture toughness is a material parameter describing the resistance of a cracked body to further crack extension. It is an important parameter for simulating and predicting the breakup behavior of ice shelves from the calving of single icebergs to the disintegration of entire ice shelves over a wide range of length scales. The fracture toughness values are calculated with equations that are derived from an elastic stress analysis. Additionally, an X-ray computer tomography (CT scanner) was used to identify the density as a function of depth. The critical fracture toughness of 91 Antarctic bubbly ice samples with densities between 840 and 870 kg m−3 has been determined by applying a four-point bending technique on single-edge v-notched beam samples. The examined ice core was drilled 70 m north of Kohnen Station, Dronnning Maud Land (75°00' S, 00°04' E; 2882 m). Supplementary data are available at doi:10.1594/PANGAEA.835321.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Christmann, J. ; Müller, R. ; Webber, Kyle G. ; Isaia, Daniel ; Schader, Florian H. ; Kipfstuhl, S. ; Freitag, J. ; Humbert, A. |
| Art des Eintrags: | Bibliographie |
| Titel: | Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
| Sprache: | Englisch |
| Publikationsjahr: | 11 Mai 2015 |
| Verlag: | Copernicus Publication |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Earth System Science Data |
| Jahrgang/Volume einer Zeitschrift: | 7 |
| DOI: | 10.1594/PANGAEA.835321. |
| Kurzbeschreibung (Abstract): | Abstract. The critical fracture toughness is a material parameter describing the resistance of a cracked body to further crack extension. It is an important parameter for simulating and predicting the breakup behavior of ice shelves from the calving of single icebergs to the disintegration of entire ice shelves over a wide range of length scales. The fracture toughness values are calculated with equations that are derived from an elastic stress analysis. Additionally, an X-ray computer tomography (CT scanner) was used to identify the density as a function of depth. The critical fracture toughness of 91 Antarctic bubbly ice samples with densities between 840 and 870 kg m−3 has been determined by applying a four-point bending technique on single-edge v-notched beam samples. The examined ice core was drilled 70 m north of Kohnen Station, Dronnning Maud Land (75°00' S, 00°04' E; 2882 m). Supplementary data are available at doi:10.1594/PANGAEA.835321. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 11 Jan 2016 16:21 |
| Letzte Änderung: | 11 Jan 2016 16:21 |
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