This study conducted by M. Koçak et al. in 2008 presents a Fitness-For-Service (FFS) procedure for the fracture-based assessment of flaws in welded metallic structures and components. The study provides a roadmap that includes the information required for assessment, fracture analysis, reporting of results, and specific fracture assessments. Data quality directly influences the sophistication and accuracy of the analysis. The procedure features a hierarchical structure that allows users to expend minimal effort to achieve acceptable results. Qualitative and quantitative guidance is provided based on the effects of brittle fracture and plastic collapse. These methods can be used to determine the acceptability of specific conditions, the value of critical parameters, safety margins against failure, or the probability of failure.

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For a detailed review, you can access the related study here.