... welds design. INTRODUCTION Due to the presence of a higher stress level and potential defects in the weld toe, stress concentration mitigation is always considered in riser fatigue design and construction, especially for the high fatigue performance girth welds. Considering manufacturing tolerances...

... environment. Local steel layers in the carcass layer get thinner when the carcass layer erodes. Furthermore, with the action of external load, the erosion position of the carcass layer may have stress concentration. The pipeline will collapse and fail as a result of the external pressure. Paumier et al. (2009...

... Stress concentration and tensile residual stress are detrimental to fatigue life of welded joints. In order to reduce stress concentration, a mathematical design method of tensile triangles (MTT) based on bionics was applied to weld shape design. Accordingly, the stress concentration...

... of welding for non-symmetrical geometry. The overall trend of the result was largely similar to the standard of the IACS Fabrication Tolerance. In addition, it was confirmed again that the thickness of base material and the ratio of thickness between the abutting plates could affect the stress concentration...

... uniaxial stress state stress intensity factor multiaxial stress state load level welding residual stress crack growth deformation stress concentration fatigue crack growth gusset model computation stress state characteristic tensor artificial intelligence residual stress initial...

... and guidance about how much the fabrication tolerance is allowed. rectification method base plate fabrication tolerance fillet welding iac fabrication tolerance stress concentration cruciform joint alignment requirement welding classification society thickness ratio misalignment welding...

... was suggested in this study. Structural analysis, fatigue analysis and crack propagation calculation were performed to verify the adequacy of the structural arrangement and strength of the fuel tank structures. In addition, stress-concentrated area of the hull due to structural discontinuity between existing...

... liquified natural gas finite element model allowable stress corner insulation system fixture polyurethane foam insulation system stress concentration cargo containment thick plate degree corner insulation system membrane thermal contraction stress distribution thickness A Study...

..., and confirmed its pressure resistance by hydraulic pressure tests. stress concentration hemisphere cap ceramic cylinder new simple design method compressive strength minor principal stress design method metal cap pressure-tight housing contour mpa tensile stress major principal stress...

... experiencing perturbations in the stress field often observed in traditional boundary conditions (i.e. clamped edges), which may generate stress concentrations causing early plasticization of the boundaries. Fig. 7. Three spacings finite elements model In the present work, it is observed that strains...

... the comparison between the test and the strain results of the model. Stress concentrations are present in the chamfers and when the pipe buckles a shift of the bending neutral axis further increases the stress on the tension side. On this scale the buckling initiation predicted by the model is hard to grasp...

... attributed to the effects of the stress concentration in the touchdown zone and soil remolding caused by the pipeline dynamic motions during the laying process. Quantification of these effects is often made difficult by the lack of field observations. This study presents a detailed back-analysis...

... that the stress concentration was occurred on the rehabilitated pipe by the edge of damaged old pipe. In addition, it was clarified that the inner circumferential strains occurred on the rehabilitated pipe was noticeably different depending on the damage level of the deteriorating old pipe. old pipe...

.../strain conditions exerted on high-strength steel pipelines due to the synergism of internal pressure, soil strain and local stress concentration at corrosion defects. The effect of mechanical-electrochemical interaction on the steel corrosion was determined both mechanistically and quantitatively...

... bracket platform requirement construction specification stress concentration constructability subsea system tension leg platform construction procedure special requirement APCPCWM_4828539:WP_0000045WP_0000045 AP C PC W M _4 82 85 39 :W P_ 00 00 04 5W P_ 00 00 04 5 Introduction of Hull...

... of the traditional curves. Different extraction methods are described and discussed. circumference stress concentration soil resistance evaluation material model displacement platform design subsea system stiffness subgrade reaction load case wind energy shear stress resistance renewable energy...

... and fatigue design recommendations based on allowable nominal stresses (e.g. Eurocode 3, DNV-RP-C203 and Hobbacher, 2007). residual stress metals & mining sn curve concentration fatigue strength knee point artificial intelligence mpa local stress concentration fatigue design as-welded...

... costly and more readily available in more areas of the world. fea stress concentration uoe pipe offshore pipeline application configuration strength loading condition limit state pipe example result spiral finite element analysis upstream oil & gas offshore application limit...

... be as simple and effective as possible. The metal seal can bring desired sealing effect by the relative movement of the metal surface. lower part force bearing point metal seal support base seal structure stress concentration performance analysis deformation reliable seal structure subsea...

... be applied to these joints because the stress concentration mechanism of gusset welded joints is different from those of cruciform joints. Many researchers reported the shell stress of a gusset welded joint may be considerably different from that derived from measurement or solid model (e.g., Fricke (2002...