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| Main Authors: | , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2014
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.835321 |
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| _version_ | 1867170046418092032 |
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| author | Christmann, Julia Müller, Ralf Webber, Kyle G Isaia, Daniel Schader, Florian H Kipfstuhl, Sepp Freitag, Johannes Humbert, Angelika |
| author_facet | Christmann, Julia Müller, Ralf Webber, Kyle G Isaia, Daniel Schader, Florian H Kipfstuhl, Sepp Freitag, Johannes Humbert, Angelika |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The critical fracture toughness is a material parameter describing the resistance of a cracked body to further crack extension. It is an important parameter to simulate and predict the break-up behaviour of ice shelves from 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 inland ice samples with densities between 840 to 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 70m north of Kohnen Station, Dronnning Maud Land (75°00' S, 00°04' E, 2882 m). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_835321 |
| institution | PANGAEA |
| language | en |
| publishDate | 2014 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Measurements of fracture toughness applying a four-point-bending technique of ice core B34 from Kohnen Station, Dronning Maud Land, Antarctica Christmann, Julia Müller, Ralf Webber, Kyle G Isaia, Daniel Schader, Florian H Kipfstuhl, Sepp Freitag, Johannes Humbert, Angelika B34; Density, snow; DEPTH, ice/snow; Dronning Maud Land, Antarctica; EPICA; EPICA-Campaigns; European Project for Ice Coring in Antarctica; Fracture toughness; ICEDRILL; Ice drill; Kohnen Station; Sample code/label; see comment The critical fracture toughness is a material parameter describing the resistance of a cracked body to further crack extension. It is an important parameter to simulate and predict the break-up behaviour of ice shelves from 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 inland ice samples with densities between 840 to 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 70m north of Kohnen Station, Dronnning Maud Land (75°00' S, 00°04' E, 2882 m). |
| title | Measurements of fracture toughness applying a four-point-bending technique of ice core B34 from Kohnen Station, Dronning Maud Land, Antarctica |
| topic | B34; Density, snow; DEPTH, ice/snow; Dronning Maud Land, Antarctica; EPICA; EPICA-Campaigns; European Project for Ice Coring in Antarctica; Fracture toughness; ICEDRILL; Ice drill; Kohnen Station; Sample code/label; see comment |
| url | https://doi.org/10.1594/PANGAEA.835321 |