Measurement of the 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...
Published in: | Earth System Science Data |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2015
|
Subjects: | |
Online Access: | https://doi.org/10.5194/essd-7-87-2015 https://doaj.org/article/20889c2ab8be4d9291803ea84ffff1d4 |
id |
ftdoajarticles:oai:doaj.org/article:20889c2ab8be4d9291803ea84ffff1d4 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:20889c2ab8be4d9291803ea84ffff1d4 2023-05-15T13:53:13+02:00 Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core J. Christmann R. Müller K. G. Webber D. Isaia F. H. Schader S. Kipfstuhl J. Freitag A. Humbert 2015-05-01T00:00:00Z https://doi.org/10.5194/essd-7-87-2015 https://doaj.org/article/20889c2ab8be4d9291803ea84ffff1d4 EN eng Copernicus Publications http://www.earth-syst-sci-data.net/7/87/2015/essd-7-87-2015.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 1866-3508 1866-3516 doi:10.5194/essd-7-87-2015 https://doaj.org/article/20889c2ab8be4d9291803ea84ffff1d4 Earth System Science Data, Vol 7, Iss 1, Pp 87-92 (2015) Environmental sciences GE1-350 Geology QE1-996.5 article 2015 ftdoajarticles https://doi.org/10.5194/essd-7-87-2015 2022-12-30T23:16:05Z 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). Supplementary data are available at doi:10.1594/PANGAEA.835321 . Article in Journal/Newspaper Antarc* Antarctic ice core Ice Shelves Iceberg* Directory of Open Access Journals: DOAJ Articles 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 |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 J. Christmann R. Müller K. G. Webber D. Isaia F. H. Schader S. Kipfstuhl J. Freitag A. Humbert Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
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). Supplementary data are available at doi:10.1594/PANGAEA.835321 . |
format |
Article in Journal/Newspaper |
author |
J. Christmann R. Müller K. G. Webber D. Isaia F. H. Schader S. Kipfstuhl J. Freitag A. Humbert |
author_facet |
J. Christmann R. Müller K. G. Webber D. Isaia F. H. Schader S. Kipfstuhl J. Freitag A. Humbert |
author_sort |
J. Christmann |
title |
Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_short |
Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_full |
Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_fullStr |
Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_full_unstemmed |
Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core |
title_sort |
measurement of the fracture toughness of polycrystalline bubbly ice from an antarctic ice core |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/essd-7-87-2015 https://doaj.org/article/20889c2ab8be4d9291803ea84ffff1d4 |
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 |
Earth System Science Data, Vol 7, Iss 1, Pp 87-92 (2015) |
op_relation |
http://www.earth-syst-sci-data.net/7/87/2015/essd-7-87-2015.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 1866-3508 1866-3516 doi:10.5194/essd-7-87-2015 https://doaj.org/article/20889c2ab8be4d9291803ea84ffff1d4 |
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 |
_version_ |
1766258190958198784 |