Numerical study of large pendulum ice impact loads

• Published in: Volume 7: Polar and Arctic Sciences and Technology
• Main Authors: Andrade, Sthefano L., Quinton, Bruce W. T., Daley, Claude G., Gagnon, Robert E.
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Society of Mechanical Engineers 2020
• Subjects: ice loads; numerical structure analysis; large pendulum impacts; Arctic; University of Newfoundland
• Online Access: https://doi.org/10.1115/OMAE2020-19068; https://nrc-publications.canada.ca/eng/view/object/?id=5c224e83-4f8a-42a4-bfe2-a8a75818b72c; https://nrc-publications.canada.ca/fra/voir/objet/?id=5c224e83-4f8a-42a4-bfe2-a8a75818b72c

The large pendulum ice impact experiments performed at the Memorial University of Newfoundland recorded pressure distributions using a novel high-fidelity measurement device, the Impact Module, which is capable of fine spatial and temporal resolutions — effectively 2 cm² at 500 Hz. These experiments achieved impact energies approaching 29 kJ, velocities of 4.7 m/s, and loads reaching 620 kN. The data obtained by the device are unique, as the Impact Module is capable of recording ice pressure data with both high spatial and high temporal resolution over a large contact area. Until recently, there was no ice load measurement technique capable of excelling in all these aspects. This work aims to study the simulation of a numerical test panel model under the action of the loads measured during the ice impact experiments. This is done by using a non-linear numerical model with explicit time integration capable of simulating the dynamic transient ice loads and comparing their effects to a quasi-static approach. Peer reviewed: Yes NRC publication: Yes