Zobrazeno 1 - 10
of 56
pro vyhledávání: '"James H. Lever"'
Autor:
James H. Lever, Austin P. Lines
Publikováno v:
Journal of Glaciology, Vol 69, Pp 217-236 (2023)
Ice skates are remarkably slippery across a wide range of conditions. We propose, based on earlier observations and new modeling, that an ice-rich slurry forms rapidly beneath a skate blade during each stride to lubricate the interface. Crushing from
Externí odkaz:
https://doaj.org/article/b4a5fad3e8ca4bcf99620ec46abef683
Autor:
James H. Lever, Austin P. Lines, Susan Taylor, Garrett R. Hoch, Emily Asenath-Smith, Devinder S. Sodhi
Publikováno v:
Journal of Glaciology, Vol 68, Pp 337-356 (2022)
The mechanics underlying ice–skate friction remain uncertain despite over a century of study. In the 1930s, the theory of self-lubrication from frictional heat supplanted an earlier hypothesis that pressure melting governed skate friction. More rec
Externí odkaz:
https://doaj.org/article/762308175d3d418e8b8a43c07bac6ceb
Publikováno v:
Frontiers in Mechanical Engineering, Vol 7 (2021)
Sliding friction on ice and snow is characteristically low at temperatures common on Earth’s surface. This slipperiness underlies efficient sleds, winter sports, and the need for specialized tires. Friction can also play a micro-mechanical role aff
Externí odkaz:
https://doaj.org/article/caac3440b7034469bc73c1f819a15b7d
Publikováno v:
Journal of Glaciology, Vol 65, Pp 68-84 (2019)
The long-accepted theory to explain why snow is slippery postulates self-lubrication: frictional heat from sliding melts and thereby lubricates the contacting snow grains. We recently published micro-scale interface observations that contradicted thi
Externí odkaz:
https://doaj.org/article/f4ead8268c944c3597f2522e94e87fd8
Autor:
JAMES H. LEVER, SUSAN TAYLOR, ARNOLD J. SONG, ZOE R. COURVILLE, ROSS LIEBLAPPEN, JASON C. WEALE
Publikováno v:
Journal of Glaciology, Vol 64, Pp 27-36 (2018)
The mechanics of snow friction are central to competitive skiing, safe winter driving and efficient polar sleds. For nearly 80 years, prevailing theory has postulated that self-lubrication accounts for low kinetic friction on snow: dry-contact slidin
Externí odkaz:
https://doaj.org/article/b4469c204e824db490e99c14cdcb14fc
Autor:
James H. Lever, Austin P. Lines
Publikováno v:
Journal of Glaciology. 69:217-236
Ice skates are remarkably slippery across a wide range of conditions. We propose, based on earlier observations and new modeling, that an ice-rich slurry forms rapidly beneath a skate blade during each stride to lubricate the interface. Crushing from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b243afba1aa9d70f44743815b813bcde
https://doi.org/10.1017/jog.2022.48
https://doi.org/10.1017/jog.2022.48
Publikováno v:
Meteoritics & Planetary Science. 56:1988-2001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa7fe4826609dea9616d7669ecc3d36a
https://doi.org/10.1111/maps.13759
https://doi.org/10.1111/maps.13759
Autor:
Garrett R. Hoch, Devinder S. Sodhi, James H. Lever, Susan Taylor, Emily Asenath-Smith, Austin Lines
Publikováno v:
Journal of Glaciology. 68:337-356
The mechanics underlying ice–skate friction remain uncertain despite over a century of study. In the 1930s, the theory of self-lubrication from frictional heat supplanted an earlier hypothesis that pressure melting governed skate friction. More rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d879d342db18a988b3f402acaf6223c
https://doi.org/10.1017/jog.2021.97
https://doi.org/10.1017/jog.2021.97
Publikováno v:
Frontiers in Mechanical Engineering, Vol 7 (2021)
Sliding friction on ice and snow is characteristically low at temperatures common on Earth’s surface. This slipperiness underlies efficient sleds, winter sports, and the need for specialized tires. Friction can also play a micro-mechanical role aff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1d58a87ff639377fe6eb7e1edd735ea
https://doi.org/10.3389/fmech.2021.690425
https://doi.org/10.3389/fmech.2021.690425
Publikováno v:
Journal of Glaciology. 65:68-84
The long-accepted theory to explain why snow is slippery postulates self-lubrication: frictional heat from sliding melts and thereby lubricates the contacting snow grains. We recently published micro-scale interface observations that contradicted thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2b146d98d96fa0fe000972edb4ef57e
https://doi.org/10.1017/jog.2018.97
https://doi.org/10.1017/jog.2018.97