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    • Remigijus Janulionis

    Laboratory of Nuclear Installation Safety (17)
    Position:
    Senior research associate
    ORCID:
    https://orcid.org/0000-0002-6905-2904
    Room number:
    434-AK
    Phone number:
    +37037401918
    Email:
    Remigijus.Janulionis@lei.lt

    Publications

    Scientific article

    2025

    Janulionis R. [LEI], Dundulis G. [LEI]. Numerical simulation of low-cycle fatigue test of welded 9Cr-1Mo steel at 550 ◦C In: Engineering structures. London: Elsevier, 2025, Vol. 326, 119540, p. 1-11. ISSN 0141-0296, eISSN 1873-7323.

    2024

    Janulionis R. [LEI], Dundulis G. [LEI]. Study of the impact of hydrides on the fracture toughness of Zr-2.5Nb alloy In: Nuclear Engineering and Design. Lausanne: Elsevier, 2024, Vol. 416, 112803, p. 1-14. ISSN 0029-5493.

    2023

    Janulionis R. [LEI], Dundulis G. [LEI]. Numerical Evaluation of Residual Stress Influence on SIF in CT Specimen In: Applied Sciences. Basel: MDPI, 2023, Vol. 13, Iss. 10, 6180, p. 1-15. ISSN 2076-3417.

    2022

    Ragaišis V. [LEI], Kaliatka T. [LEI], Poškas P. [LEI], Kaliatka A. [LEI], Šmaižys A. [LEI], Janulionis R. [LEI], Narkūnas E. [LEI], Sirvydas A. [LEI], Babilas E. [LEI], Rimkevičius S. [LEI]. A proposed approach for the evaluation of consequences of a large aircraft crash accident at an RBMK type reactor site during decommissioning In: Progress in Nuclear Energy. Oxford: Elsevier, 2022, Vol. 145, 104135, p. 1-15. ISSN 0149-1970, eISSN 1878-4224.

    2021

    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.

    2020

    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.

    2019

    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.

    2018

    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.

    2017

    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.

    Conference paper

    2025

    Janulionis R. [LEI], Dundulis G. [LEI], Šeporaitis M. [LEI]. Fatigue Evaluation of Tank Semi-Trailer Frame Made of Duplex Steel In: Abstracts Book 34th International Conference on Metalurgy and Materials May 21-23, 2025 . Brno: Tanger Ltd, 2025, p. 27-27. ISBN 978-80-88365-26-6.
    Stankutė E. [LEI], Janulionis R. [LEI]. Numerical Simulation of Mechanical Properties of Hybrid Composites In: Books of Abstracts The Polymers 2025, Composites 2025 and 3Bs Materials TECH 2025 International Joint Conference, Albufeira, Portugal, 16-18 April, 2025. Albufeira: Setcor, 2025, p. 76-76..

    2024

    Janulionis R. [LEI], Dundulis G. [LEI], Kaliatka A. [LEI]. The methodology for numerical evaluation of hydrogen embrittlement of Zr alloys In: International Conference Nuclear Energy For The People 1-4 October 2024. Burgas: Bulgarian Nuclear Society, 2024, p. 1-2..

    2023

    Janulionis R. [LEI], Grybėnas A. [LEI], Makarevičius V. [LEI], Legha A., Liesionis V.. Selection of duplex steel welding process using low cycle fatigue test In: Proceedings 32nd International Conference on Metallurgy and Materials May 17 - 19, 2023. Ostrava-Zabreh: Tanger, 2023, p. 340-345. ISSN 2694-9296 ISBN 978-80-88365-12-9.

    2018

    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.

    2017

    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.

    2016

    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.

    2015

    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.

    International projects

    Horizon Europe

    1
    OPEn HPC theRmomechanical tools for the development of eAtf fuels (OperaHPC)
    Ongoing
    01.11.2022 - 30.04.2027

    Increasing further the safety of light water nuclear reactors in the new operating conditions induced by their integration in a more varied energy mix brings many new challenges for fMore

    Horizon 2020

    1
    INcreasing Safety in NPPs by Covering gaps in Environmental Fatigue Assessment (INCEFA-PLUS)
    https://incefaplus.unican.es/
    Completed
    01.07.2015 - 30.06.2020

    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)

    1
    NUGENIA+
    Preparing NUGENIA for HORIZON2020 (NUGENIA-PLUS)
    http://nugenia.org/about-nugenia/
    Completed
    01.09.2013 - 31.08.2016

    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

    2
    European Fusion Development Agreement (EURATOM-LEI association)
    Completed
    01.01.2007 - 31.12.2013

    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

    COST

    1
    Fatigue Benchmark Repository (CA23109)
    https://www.pragtic.com/faber.php#FABER
    Ongoing
    25.09.2024 - 24.09.2028

    Fatigue damage is the key factor in 80-90% of in-service failures of structural components. In any design, it is essential to be able to estimate the potential fatigue damage safely aMore

    Other international projects

    1
    Consultancy services for the implementation of a remediation project in Turkey
    Completed
    22.03.2020 - 28.02.2022

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

    Projects in Lithuania

    EU Structural Funds

    1
    Testing an R&D idea – Saving energy and resources by combining the recycling of plant and animal bio-waste into useful products (No. 10-038-T-0162)
    Ongoing
    07.10.2024 - 30.09.2025

      The objective of the project Testing an R&D idea – Saving energy and resources by combining the recycling of plant and animal bio-waste into useful products (No. 10-038-T-01More

    2
    Testing an R&D idea – Improvement of defect assessment methodology for determining structural integrity and durability of components (No. 10-038-T-0094)
    Ongoing
    2024.09.23 - 2025.09.30

      Project summary: The project is implemented under the Development Programme Manager of the Ministry of Education, Science and Sport of the Republic of Lithuania for the perMore

    3
    Testing an R&D idea – assessment of fractures in high pressure equipment (No. 10-038-T-0113)
    Ongoing
    29.08.2024 - 28.08.2025

      Objective of the project Testing an R&D idea – Assessment of fractures in high pressure equipment (No. 10-038-T-0113) is to prepare and application proposal for the EURATOMore

    4
    2014–2020 ES fondų investicijų ženklas
    Development of a prototype LDX 2101 duplex stainless steel frame for a semi-trailer tanker
    Completed
    01.07.2021 - 31.10.2022

    Lithuanian Energy Institute together with its partner Astra LT AB carried out the project „Development of a prototype LDX 2101 duplex stainless steel frame for a semi-trailer tanker“.More

    5
    2014–2020 ES fondų investicijų ženklas
    Investicijos į labai didelių gabaritų talpyklų ir reaktorių su kavitaciniu maišymu sukūrimo mokslinius tyrimus ir eksperimentinę plėtrą
    Completed
    2020.07.01 - 2023.10.31

    Akcinė bendrovė „Astra LT“ kartu su partneriu Lietuvos energetikos institutu įgyvendina projektą „Investicijos į labai didelių gabaritų talpyklų ir reaktorių su kavitaciniu maišymu More

    6
    2014–2020 ES fondų investicijų ženklas
    Development and EU market placement of a new DUPLEX steel tank semi-trailer
    Completed
    22.02.2019 - 30.06.2021

    Astra LT AB kartu su partneriu Lietuvos energetikos institutu įgyvendina projektą „Development and EU market placement of a new DUPLEX steel tank semi-trailer“, No J05-LVPA-K-04-0More