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Andrey P. Jivkov
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Journal Articles

Capturing the Temperature Dependence of Cleavage Fracture Toughness in the Ductile-to-Brittle Transition Regime in Ferritic Steels Using an Improved Engineering Local Approach

Maria S. Yankova, Andrey P. Jivkov, Rajesh Patel, Andrew H. Sherry
Journal: Journal of Pressure Vessel Technology
Article Type: Research-Article
J. Pressure Vessel Technol. June 2022, 144(3): 031503.
Paper No: PVT-20-1220
DOI: https://doi.org/10.1115/1.4054497
Published Online: May 9, 2022
View Article titled, Capturing the Temperature Dependence of Cleavage Fracture Toughness in the Ductile-to-Brittle Transition Regime in Ferritic Steels Using an Improved Engineering Local Approach
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Topics: Brittleness, Fracture (Materials), Fracture (Process), Fracture toughness, Microcracks, Particulate matter, Probability, Steel, Stress, Temperature
Journal Articles

Large-Scale Modeling of Damage and Failure of Nuclear Graphite Moderated Reactor

Ahmadreza Farrokhnia, Andrey P. Jivkov, Graham Hall, Paul Mummery
Journal: Journal of Pressure Vessel Technology
Article Type: Research-Article
J. Pressure Vessel Technol. June 2022, 144(3): 031502.
Paper No: PVT-20-1195
DOI: https://doi.org/10.1115/1.4053478
Published Online: February 10, 2022
View Article titled, Large-Scale Modeling of Damage and Failure of Nuclear Graphite Moderated Reactor
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Topics: Bricks, Damage, Failure, Graphite, Stress, Fuels, Modeling, Irradiation (Radiation exposure), Fracture (Process)
Proceedings Papers

A Local Approach to Assess Temperature Effects on Fracture Toughness Incorporating the Measured Distribution of Microcracks

Claudio Ruggieri, Andrey P. Jivkov
Proc. ASME. PVP2019, Volume 6B: Materials and Fabrication, V06BT06A038, July 14–19, 2019
Paper No: PVP2019-93186
DOI: https://doi.org/10.1115/PVP2019-93186
View Paper titled, A Local Approach to Assess Temperature Effects on Fracture Toughness Incorporating the Measured Distribution of Microcracks
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Topics: Fracture toughness, Microcracks, Temperature effects, Fracture (Materials), Fracture (Process), Steel, Statistics, Natural, scientific and engineering processes and practices, Particulate matter, Pressure vessels
Proceedings Papers

Predictions of Fracture Toughness for Weld Material When Adopting a Novel Particle Failure Criterion and a Measured Experimental Particle Distribution

Peter James, Mike Ford, Andrey P. Jivkov
Proc. ASME. PVP2013, Volume 6A: Materials and Fabrication, V06AT06A055, July 14–18, 2013
Paper No: PVP2013-97509
DOI: https://doi.org/10.1115/PVP2013-97509
View Paper titled, Predictions of Fracture Toughness for Weld Material When Adopting a Novel Particle Failure Criterion and a Measured Experimental Particle Distribution
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Topics: Failure, Fracture toughness, Particulate matter, Fracture (Materials), Fracture (Process), Irradiation (Radiation exposure), Rupture, Temperature, Calibration, Finite element analysis
Proceedings Papers

Cleavage Fracture Modelling for RPV Steels: Discrete Model for Collective Behaviour of Micro-Cracks

Andrew Abu-Muharib, Andrey P. Jivkov, Peter James, John R. Yates
Proc. ASME. PVP2013, Volume 6B: Materials and Fabrication, V06BT06A028, July 14–18, 2013
Paper No: PVP2013-97431
DOI: https://doi.org/10.1115/PVP2013-97431
View Paper titled, Cleavage Fracture Modelling for RPV Steels: Discrete Model for Collective Behaviour of Micro-Cracks
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Topics: Fracture (Materials), Microcracks, Modeling, Steel, Particulate matter, Failure, Probability, Accounting, Deformation, Beams (Structural)
Proceedings Papers

Assessment of Local Approach Methods for Predicting End-of-Life Toughness of RPV Steels

Andrey P. Jivkov, David P. G. Lidbury, Peter James
Proc. ASME. PVP2011, Volume 6: Materials and Fabrication, Parts A and B, 293-302, July 17–21, 2011
Paper No: PVP2011-57546
DOI: https://doi.org/10.1115/PVP2011-57546
View Paper titled, Assessment of Local Approach Methods for Predicting End-of-Life Toughness of RPV Steels
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Topics: Fracture toughness, Steel, Failure, Probability, Geometry, Irradiation (Radiation exposure)
Proceedings Papers

Meso-Scale Mechanical Model for Intergranular Stress Corrosion Cracking and Implications for Microstructure Engineering

Andrey P. Jivkov, Nicholas P. C. Stevens, Thomas J. Marrow
Proc. ASME. PVP2006-ICPVT-11, Volume 6: Materials and Fabrication, 591-598, July 23–27, 2006
Paper No: PVP2006-ICPVT-11-93268
DOI: https://doi.org/10.1115/PVP2006-ICPVT-11-93268
View Paper titled, Meso-Scale Mechanical Model for Intergranular Stress Corrosion Cracking and Implications for Microstructure Engineering
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Topics: Fracture (Materials), Grain boundaries, Stress corrosion cracking
Journal Articles

Mesoscale Mechanical Model for Intergranular Stress Corrosion Cracking and Implications for Microstructure Engineering

Andrey P. Jivkov, Nicholas P. C. Stevens, Thomas J. Marrow
Journal: Journal of Pressure Vessel Technology
Article Type: Research Papers
J. Pressure Vessel Technol. August 2008, 130(3): 031402.
DOI: https://doi.org/10.1115/1.2937736
Published Online: June 6, 2008
View Article titled, Mesoscale Mechanical Model for Intergranular Stress Corrosion Cracking and Implications for Microstructure Engineering
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Topics: Fracture (Materials), Stress corrosion cracking, Grain boundaries, Grain size, Fracture (Process)