Technical Diagnostics and Non-Destructive Testing, 2024, №03



2024 №03 (01)

2024 №03 (03)

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Technical Diagnostics and Non-Destructive Testing #3, 2024, pp. 9-16

Modern levels of structural strength assessment and the algorithm of implementation of the methodology of risk analysis of the operation of welded metal structures

V.M. Torop

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: v.torop@gmail.com

Three levels of assessment of indicators of structural strength, reliability and durability of welded metal structures are considered for the construction of a system for managing the integrity of welded metal structures. Level 1 uses the criteria of the limit state of welded metal structures based on safety margin factors and is implemented by us using a failure assessment diagram. Level 2 of probabilistic analysis of safety and reliability involves the formulation and evaluation of the values of probabilistic indicators used to assess the structural strength, reliability and durability of welded metal structures in the presence of uncertainty and lack of completeness of input data. For level 3 of the risk analysis of the operation of welded metal structures, an algorithm for its implementation is proposed and an implementation option in the form of an integrity management system is prescribed. The failure assessment diagram of damage assessment is the basis of the implementation of all three levels. 14 Ref., 6 Fig.
Keywords: risk, probability of destruction, consequences, failure assessment diagram of destruction assessment, probabilistic safety analysis, risk matrix, integrity management system

Received: 02.05.2024
Received in revised form: 27.06.2024
Accepted: 06.09.2024

References

1. Torop, V.M. (2024) Practice of implementing the methodology of risk analysis of the operation of welded metal structures in Ukraine. Tekh. Diahnost. ta Neruiniv. Kontrol, 2, 41–46. DOI: https://doi. org/10.37434/tdnk2024.02.06 [in Ukrainian].
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3. DSTU-N B V.2.3-21:2008 Main pipelines. Directive. Determination of the residual strength of main pipelines with defects [in Ukrainian].
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6. ISO 16708:2006 Petroleum and natural gas industries – Pipeline transportation systems – Reliability-based limit state methods.
7. Torop, V.M. (1994) Decision support systems for strength accompaniment of the safe operation of NPP equipment. In: Proc. of Third Int. Conf. on Material Science Problems in NPP Equipment Production and Operation, St-Petersburg, 17–22 June 1994, Vol. 3, 740–750.
8. (1951) Monte Carlo Method. Applied Mathematics Series, Vol. 12, National Bureau of Standards, Washington D.C.
9. Torop, V.M. (2005) Probability hazard analysis of the operation of pipeline systems, tanks, and pressure vessels. Part 1. Algorithm of construction of the probability model. Strength of Mater., 37, 174–179. DOI: https://doi.org/10.1007/s11223-005-0030-1.
10. Torop, V.M. (2005) Probability hazard analysis of the operation of pipeline systems, tanks, and pressure vessels. Part 2. Method for the evaluation of the functional fitness of a structural element according to the restricted statistical data. Strength of Mater., 37, 298–303. DOI: https://doi.org/10.1007/s11223-005-0042-x.
11. DBN V.1.2-14:2018 The fundamental principles of ensuring reliability and constructive safety of life and disputes.
12. Torop, V.M., Torop, O.V. (2004) Implementation of risk analysis in the system of ensuring the integrity of main pipelines. In: 14th Int. Business Meeting on Diagnostics 2004, Moscow, 81–85 [in Russian].
13. (2016) Risk based Inspection Technology Codes API 581 Ninth Edition. API, Washington, D.C, API Publ. Services.
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