Remigijus Janulionis

Laboratory of Nuclear Installation Safety (17)
Senior research associate
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Scientific article


Janulionis R. [LEI], Dundulis G. [LEI], Grybėnas A. [LEI]. Numerical research of elastic-plastic fracture toughness of aged ferritic-martensitic steel In: Engineering Failure Analysis. Oxford: Elsevier, 2021, Vol. 120, 105070, p. 1-10. ISSN 1350-6307.


Janulionis R. [LEI], Dundulis G. [LEI], Grybėnas A. [LEI]. Numerical Research of Fracture Toughness of Aged Ferritic-Martensitic Steel In: Metals. Basel: MDPI, 2020, Vol. 10 (12), 1686, p. 1-13. ISSN 2075-4701.
Saad D., Dundulis G. [LEI], Janulionis R. [LEI]. Calculation of SIFs for semi-elliptical surface cracks in U-shapedbellows expansion joints of Es-Salam research reactor vessel In: Engineering Failure Analysis. Oxford: Elsevier, 2020, Vol. 111, 104481, p. 1-13. ISSN 1350-6307.


Saad D., Dundulis G. [LEI], Janulionis R. [LEI]. Numerical simulation of SIF in Es-Salam research reactor vessel In: Engineering Failure Analysis. Oxford: Elsevier, 2019, Vol. 96, p. 394-408. ISSN 1350-6307.


Janulionis R. [LEI], Dundulis G. [LEI], Kriūkienė R. [LEI], Grybėnas A. [LEI]. Numerical prediction of mechanical properties of zirconium alloy with hydrides using finite element method In: Energetika. Vilnius: Lietuvos mokslų akademija, 2018, T. 64, Nr. 1, p. 43-51. ISSN 0235-7208, eISSN 1822-8836.


Dundulis G. [LEI], Janulionis R. [LEI], Karalevičius R. [LEI], Bykov V., Tereshchenko A., W7-X team. Limit analysis of complex welds between plasma vessel and ports in W7-X cryostat system In: Fusion Engineering and Design. 2017, Vol. 125, p. 98-108. ISSN 0920-3796.


Ušpuras E. [LEI], Rimkevičius S. [LEI], Urbonavičius E. [LEI], Kaliatka A. [LEI], Dundulis G. [LEI], Alzbutas R. [LEI], Stankūnas G. [LEI], Vaišnoras M. [LEI], Vileiniškis V. [LEI], Povilaitis M. [LEI], Kaliatka T. [LEI], Janulionis R. [LEI], Karalevičius R. [LEI], Voronov R. [LEI], Iešmantas T. [LEI], Kačegavičius T. [LEI]. Branduolių sintezės tyrimai Lietuvos energetikos institute In: Energetika. Vilnius: Lietuvos mokslų akademija, 2016, T. 62, Nr. 3, p. 102-123. ISSN 0235-7208.
Dundulis G. [LEI], Žutautaitė I. [LEI], Janulionis R. [LEI], Ušpuras E. [LEI], Rimkevičius S. [LEI], Eid M.. Integrated failure probability estimation based on structural integrity analysis and failure data: Natural gas pipeline case In: Reliability Engineering & System Safety. Didžioji Britanija: Elsevier, 2016, Vol. 156, p. 195-202. ISSN 0951-8320.


Valinčius M. [LEI], Žutautaitė I. [LEI], Dundulis G. [LEI], Rimkevičius S. [LEI], Janulionis R. [LEI], Bakas R.. Integrated assessment of failure probability of the district heating network In: Reliability Engineering and System Safety. Oxford: Elsevier, 2015, Vol. 133, p. 314-322. ISSN 0951-8320.
Dundulis G. [LEI], Grybėnas A. [LEI], Janulionis R. [LEI], Kriūkienė R. [LEI], Rimkevičius S. [LEI]. Degradation mechanisms and evaluation of failure of gas pipelines In: Mechanika. Kaunas: Kauno technologijos universitetas, 2015, Vol. 21, No. 3, p. 352-360. ISSN 1392-1207.

Conference paper


Janulionis R. [LEI], Dundulis G. [LEI], Grybėnas A. [LEI]. Numerical Investigation of Hydrogen Influence on Stress Intensity Factor of Zirconium Alloy In: Proceedings of 23rd International Conference “MECHANIKA 2018”. Druskininkai, 18 gegužės 2018 . Kaunas: Kauno technologijos universitetas, 2018, p. 58-61. ISSN 1822-2951.


Janulionis R. [LEI]. Numerical investigation of J-integral In: The 14th International Conference of Young Scientists on energy Issues (CYSENI 2017), Kaunas, Lithuania, May 25-26, 2017. Kaunas: Lietuvos energetikos institutas, 2017, p. 335-341. ISSN 1822-7554.


Janulionis R. [LEI], Dundulis G. [LEI], Grybėnas A. [LEI]. Numerical investigation of critical stress intensity factor In: 13th Annual international conference of young scientists on energy issues (CYSENI 2016), Kaunas, Lithuania, May 26–27, 2016. Kaunas: LEI, 2016. Kaunas: Lietuvos energetikos institutas, 2016, p. 226-233. ISSN 1822-7554.
Dundulis G. [LEI], Janulionis R. [LEI], Makarevičius V. [LEI], Grybėnas A. [LEI]. Fracture toughness numerical modelling of the martensitic chromium stell In: 25th Anniversary International Conference on Metallurgy and Materials. Conference proceedings May 25th - 27th 2016 Hotel Voronez I, Brno, Czech Republic. Ostrava: Tanger Ltd, 2016, p. 592-597. ISBN 978-80-87294-67-3.


Janulionis R. [LEI], Dundulis G. [LEI], Grybėnas A. [LEI]. Numerical simulation of high temperature fatigue test of the welded steel P91 In: 23rd Conference on Structural Mechanics in Reactor Technology Manchester (SMIRT23). United Kingdom: 2015, p. 1-8..
Žutautaitė I. [LEI], Dundulis R., Rimkevičius S. [LEI], Janulionis R. [LEI]. Integrated estimation of pipeline failure probability In: Safety and Reliability: Methodology and Applications – Proceedings of the European safety and reliability conference ESREL 2014. Wroclaw, Poland, September 14-18, 2014. Wroclaw, Poland: 2015, p. 417-422. ISBN 978-1-138-02681-0.
Dundulis G. [LEI], Janulionis R. [LEI], Grybėnas A. [LEI]. Deterministic-probabilistic structural integrity analysis of the gas transmission pipelines In: Proceedings of the 48th ESReDA Seminar, May 28-29, 2015. Wroclaw, Poland: 2015, p. 1-8..

International projects

Horizon 2020


INCEFA-PLUS delivers new experimental data and new guidelines for assessment of environmental fatigue damage to ensure safe operation of European nuclear power plants. Austenitic sMore

Seventh Framework Programme (FP7)


The objective of the NUGENIA+ project is to support the NUGENIA Association in its role to coordinate and integrate European research on safety of the Gen II and III nuclear installatMore


Today, about 80% of all energy produced comes from the fossil fuel (oil, carbon, and natural gas). European scientists are developing environmentally friendly, safe, and renewable eneMore

Other international projects


Project participants: Aslan Avcı Döküm Sanayi ve Ticaret A.Ş., Turkey Lietuvos energetikos institutas, LithuaniaMore