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
... compression tests have been carried out on polycrystalline isotropic ice , at strain rates between 10 and 10 S in order to investigate the effect of confining pressure on crack nucleation . The ice exhibi- ted an increase of both ...
... compression tests have been carried out on polycrystalline isotropic ice , at strain rates between 10 and 10 S in order to investigate the effect of confining pressure on crack nucleation . The ice exhibi- ted an increase of both ...
Page 68
... compression . First of all , they show the importance of the elastic properties of the intact ice sheet on peak stresses . They also emphasize the importance of the relation between the evolution of damage and the deformation that the ...
... compression . First of all , they show the importance of the elastic properties of the intact ice sheet on peak stresses . They also emphasize the importance of the relation between the evolution of damage and the deformation that the ...
Page 69
... compression can be characterised by a scalar parameter . The relation ( 2 ) has the same form as that used by Kachanov ( 1986 ) and Lemaitre and Chaboche ( 1985 ) for uniaxial tension . The interpretation is different for compression ...
... compression can be characterised by a scalar parameter . The relation ( 2 ) has the same form as that used by Kachanov ( 1986 ) and Lemaitre and Chaboche ( 1985 ) for uniaxial tension . The interpretation is different for compression ...
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