Engineering Critical Assessment (ECA) — BS 7910 / DNV OS-F101
Fracture mechanics course covering ECA of crack-like flaws using BS 7910 and DNV OS-F101, including FAD methodology, fatigue assessment, NDT input, sour-service ECA, worked examples from pipeline, pressure equipment applications.
Course Overview
This specialist course covers Engineering Critical Assessment (ECA) methodology for the assessment of crack-like flaws in pipelines, pressure vessels, and welded structures. It applies BS 7910 and DNV OS-F101 as the primary assessment frameworks, with reference to API 579-1/ASME FFS-1 where applicable. The programme addresses fracture mechanics fundamentals, the Failure Assessment Diagram approach, fatigue crack growth, NDT input and sizing uncertainty, sour-service ECA, and practical application through case studies. It is designed for integrity and assessment engineers who need to evaluate crack indications, support ECA procedures, or make fitness-for-service decisions on welded components.
Who Should Attend
Engineering degree with a background in materials, mechanical, structural, or pipeline engineering. Understanding of stress analysis and fracture mechanics at introductory level is beneficial. Familiarity with NDT methods and weld inspection is helpful.
Learning Outcomes
- Explain fracture mechanics concepts — stress intensity factor, CTOD, J-integral — relevant to ECA
- Apply the BS 7910 Failure Assessment Diagram (FAD) at Level 1, 2A, 2B, and 3
- Calculate reference stress and stress intensity factor for simple and complex geometries
- Apply fatigue crack growth assessment using BS 7910 and DNV RP-C203 approaches
- Quantify NDE sizing uncertainty and incorporate it into ECA following BS 7910 Annex K
- Apply ECA for sour-service environments with H2S and SSC considerations
- Understand DNV OS-F101 ECA requirements for pipeline girth welds
- Evaluate accept-repair-monitor decisions using ECA outputs
Course Outline
Fracture Mechanics Fundamentals for ECA
BS 7910 Framework and Failure Assessment Diagram
Fatigue Assessment
NDE Input and Sizing Uncertainty
Sour-Service ECA
Pipeline and Girth Weld ECA — DNV OS-F101
Case Studies and Worked Examples
Topics Covered
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Training & Competency?
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