Acoustic emission study on multi-year sea ice in an Arctic field laboratory

Acoustic emission in conjunction with visual observation, was monitored in a High Arctic field laboratory in multi-year columnar-grained sea ice during uniaxial compression tests in a wide range of loading rates. AE observations were compared with the visual observation and an estimation of tensile strength and its rate sensitivity was made from the data obtained.Dans un laboratoire de terrain de l'Extr\ueame-Arctique, on a mesur\ue9, tout en proc\ue9dant \ue0 une observation visuelle, l'\ue9mission acoustique (EA) dans de la glace de mer \ue0 grains prismatiques \ue2g\ue9e de plusieurs ann\ue9es, dans le cadre d'essais de compression uniaxiale avec divers taux de charge. Les observations concernant l'EA ont \ue9t\ue9 compar\ue9es aux r\ue9sultats de l'observation visuelle; \ue0 partir des donn\ue9es aux r\ue9sultats de l'observation visuelle; \ue0 partir des donn\ue9es aux r\ue9sultats de estim\ue9 la r\ue9sistance de la glace \ue0 la traction et sa sensibilit\ue9 au taux de charge.Peer reviewed: YesNRC publication: Ye