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Keywords: residual stress
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Proceedings Papers

Proc. ASME. OMAE2022, Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems, V003T03A003, June 5–10, 2022
Paper No: OMAE2022-79192
... financially viable and the least resource-consuming approach for the qualification of produced parts, enabling metallurgical and mechanical characterization in a short time. In this research study, a three-dimensional finite element model is developed to predict the temperature, residual stress...
Proceedings Papers

Proc. ASME. OMAE2022, Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems, V003T03A005, June 5–10, 2022
Paper No: OMAE2022-87473
... Abstract The fabrication of ship hulls involves welding operations, one typical operation is fillet welding of stiffeners to plates (panels) a so-called T-joint. The residual stresses from the welding process will influence the fatigue life of the structure, and residual deformations...
Proceedings Papers

Proc. ASME. OMAE2021, Volume 3: Materials Technology, V003T03A014, June 21–30, 2021
Paper No: OMAE2021-62895
... Proceedings of the ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering OMAE2021 June 21-30, 2021, Virtual, Online OMAE2021-62895 COMPARISON BETWEEN SHRINKAGE STRAIN AND FEM THERMO-MECHANICAL METHOD FOR ESTIMATION OF WELDING INDUCED RESIDUAL STRESSES Sachin Bhardwaj 1...
Proceedings Papers

Proc. ASME. OMAE2021, Volume 3: Materials Technology, V003T03A010, June 21–30, 2021
Paper No: OMAE2021-62843
...Abstract Abstract Welding is a highly nonlinear temperature distribution process, where the presence of high-temperature gradients leads to the development of significantly high residual stress levels, up to and/or beyond the material yield strength magnitude and localized plastic deformation...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 4: Materials Technology, V004T03A013, June 9–14, 2019
Paper No: OMAE2019-96622
...RESIDUAL STRESS IN GIRTH WELDS: SEEING MEASUREMENT DATA DIFFERENTLY Ali Mirzaee-Sisan AMS Energy Solutions Ltd, Barnet (Greater London), UK, EN5 1AY Email: ali.sisan@theams.co.uk Guiyi Wu* TWI Ltd, Granta Park Great Abington, Cambridge, UK, CB21 6AL Email: guiyi.wu@twi.co.uk * Corresponding author...
Proceedings Papers

Proc. ASME. OMAE2019, Volume 5A: Pipelines, Risers, and Subsea Systems, V05AT04A009, June 9–14, 2019
Paper No: OMAE2019-95426
...Abstract Abstract In this paper, a mechanical model of armor wire winding process is established to quantify the relationship between the tension force and the internal force of armor wire cross section in winding process. Then based on this model, a method for predicting the residual stress...
Proceedings Papers

Proc. ASME. OMAE2011, Volume 3: Materials Technology; Jan Vugts Symposium on Design Methodology of Offshore Structures; Jo Pinkster Symposium on Second Order Wave Drift Forces on Floating Structures; Johan Wichers Symposium on Mooring of Floating Structures in Waves, 11-17, June 19–24, 2011
Paper No: OMAE2011-49003
... was obtained for this steel with high ductile behavior. Both steels showed a similar through thickness ductility, measured elongation for the through thickness tensile specimen, which implies that this property does not guaranty for the observed material behavior. Residual stress impact toughness z...
Proceedings Papers

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 261-268, June 6–11, 2010
Paper No: OMAE2010-20944
...’ that is not simulated in the full scale constant amplitude testing and would even lead to longer crack propagation lives under the actual long term loading on FPSOs. Fatigue S-N data crack growth analysis geometry function stress concentration factors stress intensity factor residual stress threshold value...
Proceedings Papers

Proc. ASME. OMAE2008, Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 457-462, June 15–20, 2008
Paper No: OMAE2008-57495
.... Then internal gas pressure and residual stress, induced from welding process, are considered. Applied forces and crack growth rate are calculated as a function of stress intensity factor based on an empirical equation. Crack front shape is determined by calculating stress intensity factor distributions along...
Proceedings Papers

Proc. ASME. OMAE2008, Volume 5: Materials Technology; CFD and VIV, 75-85, June 15–20, 2008
Paper No: OMAE2008-57103
... 10 8 cycles, and apparent fatigue endurance limits, the small-scale strips displaying superior fatigue properties. The reasons for this were investigated considering the fatigue crack initiation site, weld geometry, type of pipe, loading conditions, residual stresses, the re-testing of unfailed...
Proceedings Papers

Proc. ASME. OMAE2003, Volume 3: Materials Technology; Ocean Engineering; Polar and Arctic Sciences and Technology; Workshops, 327-337, June 8–13, 2003
Paper No: OMAE2003-37440
... thickness residual stress distribution for a range of common weld joint configurations. The present paper presents results of analyses where approaches to modify the R6 Option 1 or 2 failure assessment diagrams (FADs) for loss of crack tip constraint pertaining to primary and non-uniform residual stress...
Proceedings Papers

Proc. ASME. OMAE2006, Volume 3: Safety and Reliability; Materials Technology; Douglas Faulkner Symposium on Reliability and Ultimate Strength of Marine Structures, 537-550, June 4–9, 2006
Paper No: OMAE2006-92314
... penetration welds in cruciform, T or lap joints under transverse loading failing by fatigue crack growth across the weld throat under normal stresses. The review covers the influence of residual stress, applied mean stress, joint fit-up and alignment, weld quality, the use of coated steel, the need...