Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core
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 shelv...
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ftawi:oai:epic.awi.de:42233 2023-05-15T13:40:27+02:00 Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core Christmann, Julia Müller, Ralf Webber, K.G. Isaia, D Schader, F.H. Kipfstuhl, Sepp Freitag, Johannes Humbert, Angelika 2015 application/pdf https://epic.awi.de/id/eprint/42233/ https://epic.awi.de/id/eprint/42233/1/essd-7-87-2015.pdf https://hdl.handle.net/10013/epic.48956 https://hdl.handle.net/10013/epic.48956.d001 unknown Copernicus Publications https://epic.awi.de/id/eprint/42233/1/essd-7-87-2015.pdf https://hdl.handle.net/10013/epic.48956.d001 Christmann, J. , Müller, R. , Webber, K. , Isaia, D. , Schader, F. , Kipfstuhl, S. , Freitag, J. orcid:0000-0003-2654-9440 and Humbert, A. (2015) Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core , Earth Syst. Sci. Data, 7 , pp. 87-92 . doi:10.5194/essd-7-87-2015 <https://doi.org/10.5194/essd-7-87-2015> , hdl:10013/epic.48956 EPIC3Earth Syst. Sci. Data, Copernicus Publications, 7, pp. 87-92 Article isiRev 2015 ftawi https://doi.org/10.5194/essd-7-87-2015 2021-12-24T15:42:05Z 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). Article in Journal/Newspaper Antarc* Antarctic ice core Ice Shelves Iceberg* Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Kohnen ENVELOPE(0.000,0.000,-75.000,-75.000) Kohnen Station ENVELOPE(0.000,0.000,-75.000,-75.000) Earth System Science Data 7 1 87 92 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
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). |
format |
Article in Journal/Newspaper |
author |
Christmann, Julia Müller, Ralf Webber, K.G. Isaia, D Schader, F.H. Kipfstuhl, Sepp Freitag, Johannes Humbert, Angelika |
spellingShingle |
Christmann, Julia Müller, Ralf Webber, K.G. Isaia, D Schader, F.H. Kipfstuhl, Sepp Freitag, Johannes Humbert, Angelika Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
author_facet |
Christmann, Julia Müller, Ralf Webber, K.G. Isaia, D Schader, F.H. Kipfstuhl, Sepp Freitag, Johannes Humbert, Angelika |
author_sort |
Christmann, Julia |
title |
Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_short |
Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_full |
Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_fullStr |
Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_full_unstemmed |
Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_sort |
measurement of fracture toughness of polycrystalline bubbly ice from an antarctic ice core |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/42233/ https://epic.awi.de/id/eprint/42233/1/essd-7-87-2015.pdf https://hdl.handle.net/10013/epic.48956 https://hdl.handle.net/10013/epic.48956.d001 |
long_lat |
ENVELOPE(0.000,0.000,-75.000,-75.000) ENVELOPE(0.000,0.000,-75.000,-75.000) |
geographic |
Antarctic Kohnen Kohnen Station |
geographic_facet |
Antarctic Kohnen Kohnen Station |
genre |
Antarc* Antarctic ice core Ice Shelves Iceberg* |
genre_facet |
Antarc* Antarctic ice core Ice Shelves Iceberg* |
op_source |
EPIC3Earth Syst. Sci. Data, Copernicus Publications, 7, pp. 87-92 |
op_relation |
https://epic.awi.de/id/eprint/42233/1/essd-7-87-2015.pdf https://hdl.handle.net/10013/epic.48956.d001 Christmann, J. , Müller, R. , Webber, K. , Isaia, D. , Schader, F. , Kipfstuhl, S. , Freitag, J. orcid:0000-0003-2654-9440 and Humbert, A. (2015) Measurement of fracture toughness of polycrystalline bubbly ice from an Antarctic ice core , Earth Syst. Sci. Data, 7 , pp. 87-92 . doi:10.5194/essd-7-87-2015 <https://doi.org/10.5194/essd-7-87-2015> , hdl:10013/epic.48956 |
op_doi |
https://doi.org/10.5194/essd-7-87-2015 |
container_title |
Earth System Science Data |
container_volume |
7 |
container_issue |
1 |
container_start_page |
87 |
op_container_end_page |
92 |
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1766135279726362624 |