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 68
... PEAK STRESS FROM COMPRESSION TESTS Peak stresses determined in laboratory tests have been found by various researchers to depend on strain rate , ice type , salinity , grain size , temperature and confining pressure . Rather than ...
... PEAK STRESS FROM COMPRESSION TESTS Peak stresses determined in laboratory tests have been found by various researchers to depend on strain rate , ice type , salinity , grain size , temperature and confining pressure . Rather than ...
Page 71
... stress used in the creep relations taken to be the equivalent stress ō . This is in effect a superposition of the behaviour of the intact ice on the damaging behaviour described by ( 6 ) and ... PEAK STRESS ( MPa ) 355 0.0035 30 30 0.0030 71.
... stress used in the creep relations taken to be the equivalent stress ō . This is in effect a superposition of the behaviour of the intact ice on the damaging behaviour described by ( 6 ) and ... PEAK STRESS ( MPa ) 355 0.0035 30 30 0.0030 71.
Page 72
... PEAK STRESS * PEAK STRESS & * ( MPa ) 18 16 14 12 10 19 · 2 1 0.0000 5 6 7 8 9 10 O 10-4 GRAIN SIZE d ( mm ) 0.0018 0.0016 0.0014 0.0012 & # 0.0010 0.0008 0.0006 -0.0004 -0.0002 10-3 10-2 STRAIN RATE ( 8 ) 0.0000 10-1 STRAIN AT PEAK ...
... PEAK STRESS * PEAK STRESS & * ( MPa ) 18 16 14 12 10 19 · 2 1 0.0000 5 6 7 8 9 10 O 10-4 GRAIN SIZE d ( mm ) 0.0018 0.0016 0.0014 0.0012 & # 0.0010 0.0008 0.0006 -0.0004 -0.0002 10-3 10-2 STRAIN RATE ( 8 ) 0.0000 10-1 STRAIN AT PEAK ...
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