Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 241
... combined use exhibited higher efficiency than those of conventional vertical upward low hydrogen electrode welding but also of high cellulose electrode welding . For thick - wall pipes of more than 20 mm in thickness , the efficiency of ...
... combined use exhibited higher efficiency than those of conventional vertical upward low hydrogen electrode welding but also of high cellulose electrode welding . For thick - wall pipes of more than 20 mm in thickness , the efficiency of ...
Page 269
... combined stress should not exceed 60 % of SMYS since only the pipeline expansion is considered . It should , however , be noted that such a reduction of the allowable combined stress must be fixed based on engineering judgement ...
... combined stress should not exceed 60 % of SMYS since only the pipeline expansion is considered . It should , however , be noted that such a reduction of the allowable combined stress must be fixed based on engineering judgement ...
Page 272
... Combined Stress As mentioned earlier , the permissible combined stress has been assumed to be 60 % of SMYS instead of of 67 % of SMYS in the present studies . Table 6 shows how the bottom clamp elevation changes with permissible ...
... Combined Stress As mentioned earlier , the permissible combined stress has been assumed to be 60 % of SMYS instead of of 67 % of SMYS in the present studies . Table 6 shows how the bottom clamp elevation changes with permissible ...
Contents
OFFSHORE MECHANICS | 3 |
Seabed Scour Under Pipelines | 33 |
Flow Around and Forces on a Pipeline Near a Scoured | 39 |
Copyright | |
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analysis applied Arctic areas assumed axial bending bottom boundary calculated caused coefficient combined compared Conference considered corrosion crack cylinder depth determined developed diameter direction displacement drag effect element Engineering equation example experimental experiments field Figure flow free span frequency function given ground hydrodynamic increase influence installation International layer leak detection length lift force limit liquid load material maximum mean measured Mechanics metal method monitoring movement normal obtained Offshore operating parameters performed period phase pipe pipeline position predicted present pressure problem procedure properties range ratio regular waves relative resistance response riser roughness sand scour seabed shown shows simulated soil solution steel strain stress structural surface Table technique temperature thickness tion values variation velocity wall wave welding