Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 4; Volume 8, Part 4American Society of Mechanical Engineers, 1989 - Arctic regions |
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Page 1
... grain sizes are small , it is often assumed , and rightly so , that there are a large number of grains across the diameter or the minimum dimension of the gauge section . The grain size of natural polycrystalline ice is usually several ...
... grain sizes are small , it is often assumed , and rightly so , that there are a large number of grains across the diameter or the minimum dimension of the gauge section . The grain size of natural polycrystalline ice is usually several ...
Page 68
... grain size on peak stresses . At a strain rate of 5.5x10-4 s - 1 , Jones and Chew ( 1983 ) found no influence but other results differ . For strain rates below 10-5 s1 , Cole ( 1985 ) found no grain size effect . Above this rate , peak ...
... grain size on peak stresses . At a strain rate of 5.5x10-4 s - 1 , Jones and Chew ( 1983 ) found no influence but other results differ . For strain rates below 10-5 s1 , Cole ( 1985 ) found no grain size effect . Above this rate , peak ...
Page 77
... grain boundary cracking was to closely related the grain boundary sliding and delayed elastic strain . He observed that the initiation of grain boundary cavities occured when the amount of grain boundary sliding , i.e. , delayed reached ...
... grain boundary cracking was to closely related the grain boundary sliding and delayed elastic strain . He observed that the initiation of grain boundary cavities occured when the amount of grain boundary sliding , i.e. , delayed reached ...
Contents
OFFSHORE MECHANICS | 1 |
The Growth of Radial Cracks in Ice Sheets | 7 |
ICE FORCES | 11 |
Copyright | |
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analysis applied approach Arctic assumed average body calculated coefficient components compression compressive stress computed considered constant crack creep damage deformation dependent depth described determined developed diameter direction distribution effect elastic energy Engineering equation estimate experiments expression factor failure field Figure floe force fracture frequency function given grain grain boundary horizontal ice sheet iceberg impact increase initial International length limit load mass material maximum mean measured Mechanics method microcracks motion normal nucleation observed obtained Offshore operation parameters peak performed plane position predicted present pressure probability range ratio Regions relation relative Research resistance ridge samples sea ice shear ship shown shows simulation specimen strain rate strength stress structure surface Table temperature tensile tensor tests thickness toughness uniaxial vertical wave