Browsing UiS Brage by Author "Bhardwaj, Sachin"
Now showing items 1-6 of 6
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Experimental and Numerical Investigation of Residual Stress for Structural Integrity Assessment of Proximity Girth Welds
Bhardwaj, Sachin (PhD thesis UiS;, Doctoral thesis, 2023-01)Over the last decade, there has been a growing interest in the life extension of existing welded structures in offshore and renewable industry. During this phase of extension, repair of welded structures is a common practise ... -
Experimental and numerical investigation of residual stresses in proximity girth welds
Bhardwaj, Sachin; Ås, Sigmund Kyrre; RATNAYAKE MUDIYANSELAGE, Chandima (Peer reviewed; Journal article, 2023)International fabrication codes and standards provide minimum distance criteria for proximity welds, although rigorous justification is lacking. These distances are either based on practical experience or mutual agreement ... -
Experimental investigation of residual stress distribution on girth welds fabricated at proximity using neutron diffraction technique
Bhardwaj, Sachin; RATNAYAKE MUDIYANSELAGE, Chandima; Polatidis, Efthymios; Capek, Jan (Peer reviewed; Journal article, 2022)Maintaining minimum distance between repair and existing welds often becomes impractical due to the presence of compact layouts, original welds of branches, nozzles, etc. on offshore structural elements, pipelines, and ... -
Residual stress estimation in defect assessment procedures at weld toe and away locations on girth welds: Review of key parameters
Bhardwaj, Sachin; RATNAYAKE MUDIYANSELAGE, Chandima (Peer reviewed; Journal article, 2020)The distribution of residual stresses in welded joints plays an important role within the fracture evaluation guidelines recommended in structural integrity assessment codes such as BS7910, API 579 RP-1/ASME FFS-1 and R6. ... -
Thermo-Mechanical Based Residual Stress and Distortion Visualization Using Analytical, Graphical, and FEM Based Numerical Method
Pant, Raju; Bhandari, Bishal (Master thesis, 2021)The arc welding process is the main fusion welding process used in the offshore industry. This thesis attempts to understand the residual stress and distortion issues attributed to welding, and the study aims to bring a ... -
Welding procedure qualification record (WPQR) for welds fabricated at proximity
Bhardwaj, Sachin; RATNAYAKE MUDIYANSELAGE, Chandima (Peer reviewed; Journal article, 2022)Maintaining the minimum allowable distance between proximity welds has always been considered a subject of debate among design engineers, welding engineers/inspectors and fabricators/engineering contractors. The scattered ...