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 angle Arctic Engineering assumed Barents Sea Beaufort Sea behaviour berm Bjørnøya calculated coefficient Cole components computed Conference on Offshore constant constitutive equation damage evolution damage model deformation density depth determined diameter distribution dynamic effect energy equation experimental factor failure force fracture mechanics fracture toughness frequency friction function Geogrid grain horizontal ice floe ice load ice sheet ice thickness iceberg icebreaking impact increase indentor initial interaction keel material maximum measured Mechanics and Arctic Mellor microcracks modulus motion notch nucleation observed obtained ocean Offshore Mechanics parameters peak stress plane polycrystalline ice predicted pressure probability Proc radar ratio resistance ridge samples sea ice seabed shear shear stress ship shown in Figure simulation specimen spray ice strain rate strain tensor strength structure surface temperature tensile tensile stress tensor tests uniaxial compression variable vector velocity vertical wave Young's modulus