Lessons learned: the influence of testing properties on uniaxial compression tests of ice

• Main Authors: Böhm, Angelo, Herrnring, Hauke, von Bock und Polach, Rüdiger Ulrich Franz
• Format: Conference Object
• Language: English
• Published: American Society of Mechanical Engineers 2022
• Subjects: 6: Technology::600: Technology; Arctic; Northwest Passage; Global warming; Northern Sea Route; Northwest passage; Sea ice
• Online Access: http://hdl.handle.net/11420/14179

This paper describes the influence of testing properties (test rig stiffness and PID controller settings) on the uniaxial com-pression test of granular laboratory-made ice in a single-factor design experiment. Global warming causes the decline of sea ice in the Arctic regions. Enabling the Northern Sea Route and the Northwest Passage to be more accessible for the shipping in-dustry and therefore reduces the energy consumption compared to the Suez Canal Route. Nevertheless, ice will remain an inter-acting element with ships and structures in Polar and Sub-Arctic regions. A good assessment of forces exerted by the ice on the off-shore structure or the ship is essential for designing these arctic structures. Ice-structure interactions depend on the mechanical properties of the ice, which are still not fully explored but can be determined by experimental testing. Over the years, many exper-iments have been conducted with similar test setups but different testing properties. Therefore the influence of the test properties on the compressive strength of ice is analyzed and discussed by comparing the results of different test settings in this paper. The tests are conducted in a single-factor design experiment. The applied velocities range from 0.01 mm/s to 500 mm/s, causing the ice to behave ductile at lower velocities and brittle at higher velocities.