July 25, 2025

Experimental investigation of CTOD fracture toughness in FCAW-GS welds of offshore jacket structure

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Offshore jackets are vital in energy sectors, demanding high-performance welds for safety and longevity.
FCAW-GS welds reached microhardness of 246 Hv5 and tensile strength of 602 MPa, exceeding base metal properties.
Charpy impact toughness at -40°C yielded average values of 108 J, surpassing the industry standard of 40 J.
Statistical analysis and numerical modeling demonstrate significant correlations among ctod, load, and displacement.

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Experimental investigation evaluates ctod and fracture toughness in welds, indicating enhanced structural integrity and performance.

Gil M. Agag (2025) studied this question.

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