Publication Date:
2023-06-27
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 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).
Keywords:
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
Type:
Dataset
Format:
text/tab-separated-values, 273 data points
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