Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 5American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 28
... crack exten- sion method by Parks ( 1974 ) . The 1 / √r singularity at the crack tip was simulated by placing the midpoints of the crack tip elements at the quarter positions ( Barsoum , 1976 ) . A recently developed special filter ...
... crack exten- sion method by Parks ( 1974 ) . The 1 / √r singularity at the crack tip was simulated by placing the midpoints of the crack tip elements at the quarter positions ( Barsoum , 1976 ) . A recently developed special filter ...
Page 29
J - value . The radially orientated crack tip of an ensemble is thus sub- jected to larger stress intensities than a single radial crack under pure mode l - loading . A very important result can thus be stated as : A radially ending crack ...
J - value . The radially orientated crack tip of an ensemble is thus sub- jected to larger stress intensities than a single radial crack under pure mode l - loading . A very important result can thus be stated as : A radially ending crack ...
Page 32
... crack tip : J Circumferential crack tip : [ N / mm⚫ 10-5 ] 8.48 R35 b 6.26 6.09 5.84 1.19 R35 d 7.84 Fig.5 : Crack ensemble and radial crack R45a - i ; all crack ensembles have identical crack tip nodal positions . Only the deformation ...
... crack tip : J Circumferential crack tip : [ N / mm⚫ 10-5 ] 8.48 R35 b 6.26 6.09 5.84 1.19 R35 d 7.84 Fig.5 : Crack ensemble and radial crack R45a - i ; all crack ensembles have identical crack tip nodal positions . Only the deformation ...
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actuator analysis applied assessment axial ball valve Beaufort Sea bending bifurcation break-out buckling calculations check valve circumferential Cisco field coefficient collapse corrosion crack ensembles crack tip damage deformation density distribution effect equations ESD valve Figure flow force fracture fracture mechanics free span function HAZ toughness Houston hydrodynamic ice feature ice hole ice keel ice scour increase installation layer length line pipe Lougheed Island material maximum method mode shape Offshore Mechanics Offshore Technology Conference on-bottom stability parameters partial safety factors pearlite permafrost pipe displacement pipe weight pipeline plastic plate platform predicted pressure procedure radial ratio reliability riser rupture scour hole seabed seastate shows simulated Sotberg stability design strength stress structure Submarine Pipelines subsea subsea ESD surface Table tensile tensile strength tracers tube uncertainty values variables velocity vertical wave yield strength