Christmann, Julia; Müller, Ralf; Webber, Kyle G; Isaia, Daniel; Schader, Florian H; Kipfstuhl, Sepp; Freitag, Johannes; Humbert, Angelika (2014): Measurements of fracture toughness applying a four-point-bending technique of ice core B34 from Kohnen Station, Dronning Maud Land, Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.835321, Supplement to: Christmann, J et al. (2015): Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core. Earth System Science Data, 7(1), 87-92, https://doi.org/10.5194/essd-7-87-2015
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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 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).
Project(s):
Funding:
Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00077: European Project for Ice Coring in Antarctica
Fourth Framework Programme (FP4), grant/award no. ENV4980702: European Project for Ice Coring in Antarctica
Coverage:
Latitude: -75.000780 * Longitude: 0.066910
Date/Time Start: 2014-01-18T00:00:00 * Date/Time End: 2014-01-18T00:00:00
Minimum DEPTH, ice/snow: 94.6933 m * Maximum DEPTH, ice/snow: 95.8636 m
Event(s):
B34 * Latitude: -75.000780 * Longitude: 0.066910 * Date/Time: 2014-01-18T00:00:00 * Elevation Start: 2882.0 m * Elevation End: 2892.0 m * Recovery: 201 m * Location: Dronning Maud Land, Antarctica * Campaign: EPICA-Campaigns * Basis: Kohnen Station * Method/Device: Ice drill (ICEDRILL) * Comment: Elevation end based on WGS84
Comment:
Method of measurements of fracture toughness follows ASTM C1421-01b: Standard test methods for determination of fracture toughness of advanced ceramics at ambient temperature (http://www.astm.org/DATABASE.CART/HISTORICAL/C1421-01B.htm) and ASTM E1820-08: Standard test methods for measurement of fracture toughness (http://www.astm.org/DATABASE.CART/HISTORICAL/E1820-08.htm).
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | DEPTH, ice/snow | Depth ice/snow | m | Geocode | ||
2 | Sample code/label | Sample label | Christmann, Julia | |||
3 | Fracture toughness | K_Ic | kPa m**(1/2) | Christmann, Julia | see comment | |
4 | Density, snow | Density snow | kg/m3 | Christmann, Julia |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
273 data points
Data
1 Depth ice/snow [m] | 2 Sample label | 3 K_Ic [kPa m**(1/2)] | 4 Density snow [kg/m3] |
---|---|---|---|
94.6933 | B34-95_06-a | 98.7192 | 860.45 |
94.6933 | B34-95_06-b | 105.8239 | 860.45 |
94.6933 | B34-95_06-c | 83.2303 | 860.45 |
94.6933 | B34-95_06-d | 114.4458 | 860.45 |
94.6933 | B34-95_06-e | 83.5773 | 860.45 |
94.6933 | B34-95_06-f | 95.7296 | 860.45 |
94.6933 | B34-95_06-g | 95.8049 | 860.45 |
94.6933 | B34-95_06-h | 104.4785 | 860.45 |
94.6933 | B34-95_06-i | 97.4813 | 860.45 |
94.6933 | B34-95_06-j | 84.1949 | 860.45 |
94.6933 | B34-95_06-k | 86.2720 | 860.45 |
94.9370 | B34-95_07-a | 116.0754 | 844.46 |
94.9370 | B34-95_07-c | 130.9467 | 844.46 |
94.9370 | B34-95_07-d | 120.8835 | 844.46 |
94.9370 | B34-95_07-e | 62.4511 | 844.46 |
94.9370 | B34-95_07-f | 99.3887 | 844.46 |
94.9370 | B34-95_07-g | 96.6999 | 844.46 |
94.9370 | B34-95_07-h | 77.4588 | 844.46 |
94.9370 | B34-95_07-i | 92.0478 | 844.46 |
94.9370 | B34-95_07-j | 81.6780 | 844.46 |
94.9370 | B34-95_07-k | 79.2552 | 844.46 |
94.9370 | B34-95_07-l | 72.8118 | 844.46 |
95.0630 | B34-96_01-a | 69.9941 | 854.78 |
95.0630 | B34-96_01-b | 98.1614 | 854.78 |
95.0630 | B34-96_01-c | 100.1667 | 854.78 |
95.0630 | B34-96_01-d | 104.0481 | 854.78 |
95.0630 | B34-96_01-e | 77.6804 | 854.78 |
95.0630 | B34-96_01-f | 115.6038 | 854.78 |
95.0630 | B34-96_01-g | 84.9426 | 854.78 |
95.0630 | B34-96_01-h | 94.6134 | 854.78 |
95.0630 | B34-96_01-i | 102.6746 | 854.78 |
95.0630 | B34-96_01-j | 90.9976 | 854.78 |
95.0630 | B34-96_01-k | 84.9555 | 854.78 |
95.0630 | B34-96_01-l | 89.1901 | 854.78 |
95.2268 | B34-96_02-a | 138.6797 | 870.17 |
95.2268 | B34-96_02-c | 115.0270 | 870.17 |
95.2268 | B34-96_02-g | 79.0769 | 870.17 |
95.2268 | B34-96_02-h | 116.9904 | 870.17 |
95.2268 | B34-96_02-j | 108.2545 | 870.17 |
95.3541 | B34-96_03-a | 90.7434 | 859.26 |
95.3541 | B34-96_03-b | 72.3252 | 859.26 |
95.3541 | B34-96_03-c | 88.6720 | 859.26 |
95.3541 | B34-96_03-d | 85.2992 | 859.26 |
95.3541 | B34-96_03-f | 102.5089 | 859.26 |
95.3541 | B34-96_03-g | 73.9741 | 859.26 |
95.3541 | B34-96_03-i | 133.9114 | 859.26 |
95.3541 | B34-96_03-j | 73.9903 | 859.26 |
95.3541 | B34-96_03-k | 90.1239 | 859.26 |
95.3541 | B34-96_03-l | 90.0185 | 859.26 |
95.4815 | B34-96_04-a | 117.7325 | 859.43 |
95.4815 | B34-96_04-b | 105.4931 | 859.43 |
95.4815 | B34-96_04-c | 119.3203 | 859.43 |
95.4815 | B34-96_04-e | 103.9426 | 859.43 |
95.4815 | B34-96_04-f | 71.5560 | 859.43 |
95.4815 | B34-96_04-g | 100.9128 | 859.43 |
95.4815 | B34-96_04-h | 119.8770 | 859.43 |
95.4815 | B34-96_04-i | 88.1575 | 859.43 |
95.4815 | B34-96_04-k | 109.9090 | 859.43 |
95.4815 | B34-96_04-l | 90.9997 | 859.43 |
95.6089 | B34-96_05-b | 91.8984 | 861.53 |
95.6089 | B34-96_05-d | 85.7518 | 861.53 |
95.6089 | B34-96_05-e | 89.2107 | 861.53 |
95.6089 | B34-96_05-f | 97.4819 | 861.53 |
95.6089 | B34-96_05-g | 121.9781 | 861.53 |
95.6089 | B34-96_05-h | 86.6667 | 861.53 |
95.6089 | B34-96_05-i | 98.1556 | 861.53 |
95.6089 | B34-96_05-j | 112.4517 | 861.53 |
95.6089 | B34-96_05-k | 96.0965 | 861.53 |
95.6089 | B34-96_05-l | 112.6944 | 861.53 |
95.7363 | B34-96_06-a | 105.1326 | 858.89 |
95.7363 | B34-96_06-c | 79.9665 | 858.89 |
95.7363 | B34-96_06-e | 121.2746 | 858.89 |
95.7363 | B34-96_06-f | 108.3166 | 858.89 |
95.7363 | B34-96_06-g | 63.5326 | 858.89 |
95.7363 | B34-96_06-h | 62.1651 | 858.89 |
95.7363 | B34-96_06-i | 87.0691 | 858.89 |
95.7363 | B34-96_06-j | 97.0611 | 858.89 |
95.7363 | B34-96_06-k | 91.6263 | 858.89 |
95.7363 | B34-96_06-l | 104.5378 | 858.89 |
95.8636 | B34-96_07-a | 70.2844 | 870.35 |
95.8636 | B34-96_07-b | 73.2978 | 870.35 |
95.8636 | B34-96_07-c | 115.2240 | 870.35 |
95.8636 | B34-96_07-d | 83.5784 | 870.35 |
95.8636 | B34-96_07-e | 90.6952 | 870.35 |
95.8636 | B34-96_07-f | 118.6629 | 870.35 |
95.8636 | B34-96_07-g | 73.8159 | 870.35 |
95.8636 | B34-96_07-h | 86.3415 | 870.35 |
95.8636 | B34-96_07-i | 93.0422 | 870.35 |
95.8636 | B34-96_07-j | 80.3900 | 870.35 |
95.8636 | B34-96_07-k | 82.7548 | 870.35 |
95.8636 | B34-96_07-l | 109.0299 | 870.35 |