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This manuscript presents the results from an experimental investigation performed to study the material and mechanical properties of two weld joints fabricated within close proximity. The experiment has been designed using welded S355 D Z35 with distances between two parallel adjacent weld toes at 8 mm. These distances were less than the distance that has normally been recommended in standards, codes, and specifications. The Main idea of the analysis is to determine any significant effects when welding the joints with close proximity of 8 mm using SAW Welding Process of the one joint with high heat put and one joint welded with the FCAW welding Process and evaluating the destructing and nondestructive testing between the welded joints. Further, we have evaluated the joints with visual inspection, magnetic particle inspections, and radiographic testing, followed by mechanical testing for evaluation by performing tensile test, bend testing, macro structure, microstructure, hardness test, and impact testing. After evaluating the final outcome of the result, no significant changes were observed for welding the close proximity of weld of 8 mm distance between the joints as compared to the specification minimum distance between the weldments of any design should be 50 mm.

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Evaluation of Mechanical Properties of Welds Fabricated at a Close Proximity on Offshore Structures

  • 会议论文

  • 发表日期：

    2025年

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  • T. Nakkeran,
  • M. Adam Khan,
  • J. T. Winowlin Jappes,
  • R. Deverajan,
  • Jerry Sorton,
  • C. Dhamodharan,
  • Win Myint Soe

摘要

This manuscript presents the results from an experimental investigation performed to study the material and mechanical properties of two weld joints fabricated within close proximity. The experiment has been designed using welded S355 D Z35 with distances between two parallel adjacent weld toes at 8 mm. These distances were less than the distance that has normally been recommended in standards, codes, and specifications. The Main idea of the analysis is to determine any significant effects when welding the joints with close proximity of 8 mm using SAW Welding Process of the one joint with high heat put and one joint welded with the FCAW welding Process and evaluating the destructing and nondestructive testing between the welded joints. Further, we have evaluated the joints with visual inspection, magnetic particle inspections, and radiographic testing, followed by mechanical testing for evaluation by performing tensile test, bend testing, macro structure, microstructure, hardness test, and impact testing. After evaluating the final outcome of the result, no significant changes were observed for welding the close proximity of weld of 8 mm distance between the joints as compared to the specification minimum distance between the weldments of any design should be 50 mm.