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Yaroslav Dubyk
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Proceedings Papers

State-of-the-Art of WPS in RPV PTS Analysis

Maksym Zarazovskii, Vladislav Pištora, Dana Lauerova, Florian Obermeier, Diego Fernando Mora Mendez, Yaroslav Dubyk, Tobias Bolinder, Carlos Cueto-Felgueroso Garcia, Szabolcs Szávai, Judit Dudra, Oriol Costa Garrido, Christophe Blain, Markku Puustinen, Jinya Katsuyama, B. Richard Bass, Paul T. Williams, Oleksii Shugailo
Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A083, July 17–22, 2022
Paper No: PVP2022-83699
DOI: https://doi.org/10.1115/PVP2022-83699
View Paper titled, State-of-the-Art of WPS in RPV PTS Analysis
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Topics: Brittle fracture, Ductile fracture, Fracture (Materials), Fracture toughness, Heat, Reactor vessels, Steel, Stress, Thermal shock, Transients (Dynamics)
Proceedings Papers

Dynamic Model of the VVER-1000 Reactor for Seismic and LB LOCA Evaluation

Oleksii Ishchenko, Vladislav Filonov, Yaroslav Dubyk
Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A085, August 4–6, 2021
Paper No: ICONE28-65756
DOI: https://doi.org/10.1115/ICONE28-65756
View Paper titled, Dynamic Model of the VVER-1000 Reactor for Seismic and LB LOCA Evaluation
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Topics: Accidents, Cavitation, Computational fluid dynamics, Coolants, Design, Dynamic analysis, Dynamic models, Dynamic response, Dynamic stability, Dynamics (Mechanics)
Proceedings Papers

Seismic Analysis of VVER-1000 Polar Crane

Yaroslav Dubyk, Vitalii Antonchenko
Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T08A020, July 13–15, 2021
Paper No: PVP2021-61706
DOI: https://doi.org/10.1115/PVP2021-61706
View Paper titled, Seismic Analysis of VVER-1000 Polar Crane
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Topics: Cranes, Seismic analysis, Dynamic models, Nuclear power stations, Spectra (Spectroscopy), Stress, Analytical methods, Containment, Domes (Structural elements), Dynamic analysis
Proceedings Papers

Application of the Williams-Wittrick Algorithm for Thin Shell Vibrations Problems

Yaroslav Dubyk, Oleksii Ishchenko
Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T08A014, July 13–15, 2021
Paper No: PVP2021-62063
DOI: https://doi.org/10.1115/PVP2021-62063
View Paper titled, Application of the Williams-Wittrick Algorithm for Thin Shell Vibrations Problems
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Topics: Algorithms, Thin shells, Vibration, Shells, Boundary-value problems, Oscillating frequencies, Differential equations, Dynamic analysis, Eigenvalues, Pipes
Proceedings Papers

Fracture Analysis of Reactor Pressure Vessel Lower Head Considering Core Meltdown Accident

Yaroslav Dubyk, Vitalii Antonchenko, Maksym Zarazovskii
Proc. ASME. PVP2021, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A063, July 13–15, 2021
Paper No: PVP2021-62062
DOI: https://doi.org/10.1115/PVP2021-62062
View Paper titled, Fracture Analysis of Reactor Pressure Vessel Lower Head Considering Core Meltdown Accident
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Topics: Accidents, Fracture (Materials), Reactor vessels, Vessels, Boundary-value problems, Cavities, Cooling, Creep, Floods, Fracture mechanics
Proceedings Papers

Impact of the Outer Surface Air Cooling and WPS Approaches on the Brittle Fracture Margin of WWER RPV

Maksym Zarazovskii, Yaroslav Dubyk, Vladyslav Filonov, Vitalii Antonchenko, Oleksii Ishchenko
Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A016, August 3, 2020
Paper No: PVP2020-21736
DOI: https://doi.org/10.1115/PVP2020-21736
View Paper titled, Impact of the Outer Surface Air Cooling and WPS Approaches on the Brittle Fracture Margin of WWER RPV
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Topics: Brittle fracture, Cladding systems (Building), Cooling, Heat transfer, Reactor vessels, Ventilation
Proceedings Papers

In-Vessel Core Melt Retention Strategy Applied for the Rivne VVER-440 Unit

Yaroslav Dubyk, Vitalii Antonchenko
Proc. ASME. ICONE2020, Volume 1: Beyond Design Basis; Codes and Standards; Computational Fluid Dynamics (CFD); Decontamination and Decommissioning; Nuclear Fuel and Engineering; Nuclear Plant Engineering, V001T01A018, August 4–5, 2020
Paper No: ICONE2020-16913
DOI: https://doi.org/10.1115/ICONE2020-16913
View Paper titled, In-Vessel Core Melt Retention Strategy Applied for the Rivne VVER-440 Unit
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Topics: Ablation (Vaporization technology), Collapse, Vessels
Proceedings Papers

Probability of Rupture for WWER-1000 Main Piping

Yaroslav Dubyk, Maksym Zarazovskii, Sergii Ageiev, Vladislav Filonov
Proc. ASME. ICONE2020, Volume 2: Nuclear Policy; Nuclear Safety, Security, and Cyber Security; Operating Plant Experience; Probabilistic Risk Assessments; SMR and Advanced Reactors, V002T10A014, August 4–5, 2020
Paper No: ICONE2020-16897
DOI: https://doi.org/10.1115/ICONE2020-16897
View Paper titled, Probability of Rupture for WWER-1000 Main Piping
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Topics: Leakage, Pipes, Probability, Rupture, Stress, Fracture (Materials), Accounting, Flow (Dynamics), Fracture toughness, Nuclear power stations
Journal Articles

Improved Computational Fluid Dynamics Framework for Reactor Core Baffle Swelling Assessment

Yuliia Filonova, Yaroslav Dubyk, Vladislav Filonov, Vadym Kondratjuk
Journal: Journal of Nuclear Engineering and Radiation Science
Article Type: Research-Article
ASME J of Nuclear Rad Sci. January 2021, 7(1): 011404.
Paper No: NERS-20-1009
DOI: https://doi.org/10.1115/1.4047495
Published Online: October 5, 2020
View Article titled, Improved Computational Fluid Dynamics Framework for Reactor Core Baffle Swelling Assessment
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Topics: Boundary-value problems, Computational fluid dynamics, Coolants, Flow (Dynamics), Geometry, Temperature, Cooling, Temperature distribution, Metals
Proceedings Papers

Approximate Formulas for Cylindrical Shell Free Vibration Based on Vlasov’s and Enhanced Vlasov’s Semi-Momentless Theory

Igor Orynyak, Yaroslav Dubyk
Proc. ASME. PVP2018, Volume 8: Seismic Engineering, V008T08A050, July 15–20, 2018
Paper No: PVP2018-84932
DOI: https://doi.org/10.1115/PVP2018-84932
View Paper titled, Approximate Formulas for Cylindrical Shell Free Vibration Based on Vlasov’s and Enhanced Vlasov’s Semi-Momentless Theory
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Topics: Boundary-value problems, Circular cylindrical shells, Deflection, Equations of motion, Finite element methods, Finite element model, Fourier series, Free vibrations, Mode shapes, Pipes
Proceedings Papers

Williams-Wittrick Approach Application for an Effective Search for Natural Vibration Frequencies of Pipeline Systems With Fluid-Structure Interaction

Igor Orynyak, Anatolii Batura, Yaroslav Dubyk
Proc. ASME. PVP2018, Volume 4: Fluid-Structure Interaction, V004T04A026, July 15–20, 2018
Paper No: PVP2018-84933
DOI: https://doi.org/10.1115/PVP2018-84933
View Paper titled, Williams-Wittrick Approach Application for an Effective Search for Natural Vibration Frequencies of Pipeline Systems With Fluid-Structure Interaction
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Topics: Fluid structure interaction, Oscillating frequencies, Pipeline systems, Fluids, Junctions, Boundary-value problems, Free vibrations, Pipelines, Pipes, Vibration
Proceedings Papers

Dynamic Assessment of the Core Barrel During Loss of Coolant Accident

Yaroslav Dubyk, Vladislav Filonov, Oleksii Ishchenko, Igor Orynyak, Yuliia Filonova
Proc. ASME. PVP2018, Volume 4: Fluid-Structure Interaction, V004T04A035, July 15–20, 2018
Paper No: PVP2018-84762
DOI: https://doi.org/10.1115/PVP2018-84762
View Paper titled, Dynamic Assessment of the Core Barrel During Loss of Coolant Accident
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Topics: Accidents, Coolants, Pressurized water reactors, Shells, Stress, Transients (Dynamics), Acoustics, Finite element analysis, Fracture mechanics, In-service inspection
Proceedings Papers

Reactor Baffle Cooling CFD Framework for Swelling Assessment

Yuliia Filonova, Vladislav Filonov, Yaroslav Dubyk
Proc. ASME. ICONE26, Volume 9: Student Paper Competition, V009T16A079, July 22–26, 2018
Paper No: ICONE26-82365
DOI: https://doi.org/10.1115/ICONE26-82365
View Paper titled, Reactor Baffle Cooling CFD Framework for Swelling Assessment
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Topics: Computational fluid dynamics, Cooling, Temperature distribution, Creep, Geometry, Metals, Boundary-value problems, Convection, Coolants, Deformation