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 60
... assumed to be similar to microcracking at low strain rates when ductile deformation in ice is dominant . Thus , it is assumed that microcracks nucleate suddenly and that the diameters of the formed microcracks are of the same order as ...
... assumed to be similar to microcracking at low strain rates when ductile deformation in ice is dominant . Thus , it is assumed that microcracks nucleate suddenly and that the diameters of the formed microcracks are of the same order as ...
Page 61
... assumed to be so large that the influence of the crack nucleation on the surface forces of the body can be neglected . The material of the body is homogeneous and isotropic . The response of the body is assumed to contain the following ...
... assumed to be so large that the influence of the crack nucleation on the surface forces of the body can be neglected . The material of the body is homogeneous and isotropic . The response of the body is assumed to contain the following ...
Page 389
... assumed to be 3.0 MPa . For the next A - 30m2 ( adding to a total of 60m2 ) , o is assumed to be 2.8 MPa , etc ... Ac ( m2 ) o ( MPa ) A E ( MJ ) AF ( MN ) 30 3.0 30.1 85.5 60 2.8 28.1 79.8 90 2.6 26.1 74.1 120 2.4 24.1 68.4 150 2.2 ...
... assumed to be 3.0 MPa . For the next A - 30m2 ( adding to a total of 60m2 ) , o is assumed to be 2.8 MPa , etc ... Ac ( m2 ) o ( MPa ) A E ( MJ ) AF ( MN ) 30 3.0 30.1 85.5 60 2.8 28.1 79.8 90 2.6 26.1 74.1 120 2.4 24.1 68.4 150 2.2 ...
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