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 13
CRACK NUCLEATION IN POLYCRYSTALLINE ICE UNDER COMPRESSIVE STRESS STATES P. Kalifa , P. Duval , and M. Ricard Laboratoire de Glaciologie et Geophysique de l'Environnement Grenoble , France The local tensile stress field is given by eq ...
CRACK NUCLEATION IN POLYCRYSTALLINE ICE UNDER COMPRESSIVE STRESS STATES P. Kalifa , P. Duval , and M. Ricard Laboratoire de Glaciologie et Geophysique de l'Environnement Grenoble , France The local tensile stress field is given by eq ...
Page 61
... nucleation of a penny - shaped planar crack in an infinite solid is examined . Second , the condition for nucleation of a penny - shaped crack with radius a , in a body with a multidirectional crack field is studied . The solid is ...
... nucleation of a penny - shaped planar crack in an infinite solid is examined . Second , the condition for nucleation of a penny - shaped crack with radius a , in a body with a multidirectional crack field is studied . The solid is ...
Page 62
... nucleation of penny - shaped microcracks in a body with a multidirectional crack field as shown in Figure 5 ( b ) is studied . The crack field is assumed to be so sparse that the already existing cracks as well as the forming cracks do ...
... nucleation of penny - shaped microcracks in a body with a multidirectional crack field as shown in Figure 5 ( b ) is studied . The crack field is assumed to be so sparse that the already existing cracks as well as the forming cracks do ...
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