PNNL

Nick Klymyshyn is a mechanical engineer in the Computational Structural Mechanics Team of the Experimental and Computational Engineering Group. His technical expertise is in structural mechanics and finite element analysis, which he uses to support DOE and the Nuclear Regulatory Commission in their work related to the nuclear power industry, spent nuclear fuel storage and transportation, and energy-efficient vehicle technologies. Nick is an active mentor and frequently participates in the DOE Office of Science SULI—Science Undergraduate Laboratory Internships—program, which brings in undergraduates for a 10-week summer internship at a national laboratory. Nick is also active in the American Society of Mechanical Engineers (ASME) and helps organize the yearly Pressure Vessel and Piping conference, in the topic area of storage and transportation of radioactive and other hazardous materials.

• Engineering mechanics
• Computational mechanics
• Finite element analysis

• MS in Mechanical Engineering, Michigan Technological University (1996)
• BS in Mechanical Engineering, Michigan Technological University (1995)

• American Society of Mechanical Engineers (ASME)

• ASME Columbia Basin Section “Engineer of the Year” (2020)
• DOE Secretary of Energy Team Award (2018)

2020

Klymyshyn N.A., K. Kadooka, P. Ivanusa, C.J. Spitz, and J.F. Fitzpatrick. 2020. 30 cm Drop Modeling. PNNL-30495. Richland, WA: Pacific Northwest National Laboratory.

Klymyshyn N.A., B.J. Jensen, C.F. Campbell, C. Mason, K. Kadooka, and J.F. Fitzpatrick. 2020. Developing an Analytical Framework for Cumulative Effects. PNNL-30647. Richland, WA: Pacific Northwest National Laboratory.

2019

Klymyshyn N.A., and P. Ivanusa. 2019. Modeling and Analysis to Support Spent Nuclear Fuel Drop Tests. PNNL-29164. Richland, WA: Pacific Northwest National Laboratory.

Klymyshyn N.A., P. Ivanusa, K. Kadooka, C.J. Spitz, E.D. Irick, P.J. Jensen, and S.B. Ross, et al. 2019. Structural Dynamic Analysis of Spent Nuclear Fuel. PNNL-29150. Richland, WA: Pacific Northwest National Laboratory.

Klymyshyn N.A., P. Ivanusa, K. Kadooka, and C.J. Spitz. 2019. "Modeling Shock and Vibration on Used Nuclear Fuel During Normal Conditions of Transportation." In Proceedings of the ASME 2019 Pressure Vessels & Piping Conference (PVP 2019), July 14–19, 2019, San Antonio, TX, 7, Paper No: PVP2019-93619, V007T07A027. New York, New York: ASME. PNNL-SA-140861. doi:10.1115/PVP2019-93619

Klymyshyn N.A., P. Ivanusa, K. Kadooka, C.J. Spitz, and P.J. Jensen. 08/13/2019. "Modeling and Analysis of Used Nuclear Fuel during Normal Conditions of Rail Transportation." Presented by N.A. Klymyshyn at PATRAM2019, New Orleans, Louisiana. PNNL-SA-145968.

2018

Klymyshyn N.A., P. Ivanusa, K. Kadooka, C.J. Spitz, P.J. Jensen, S.B. Ross, and B.D. Hanson, et al. 2018. Modeling and Analysis of the ENSA/DOE Multimodal Transportation Campaign. PNNL-28088. Richland, WA: Pacific Northwest National Laboratory.

2017

Klymyshyn N.A., P.J. Jensen, and D. Garrido. 2017. "Rail Package Transportation Loads Transmitted to Spent Nuclear Fuel Assemblies." In International High-Level Radioactive Waste Management. PNNL-SA-123181.

Klymyshyn N.A., P. Ivanusa, K. Kadooka, D. Garcia, and J. Smith. 2017. ENSA/DOE Test Plan Modeling and Analysis Support. PNNL-26912. Richland, WA: Pacific Northwest National Laboratory.

2016

Klymyshyn N.A., P.J. Jensen, N.P. Barrett, K.I. Johnson, and M. Trego. 2016. Update: Structural Uncertainty of Used Nuclear Fuel in Dry Storage Canisters. PNNL-25830. Richland, WA: Pacific Northwest National Laboratory.

Klymyshyn N.A., P.J. Jensen, and N.P. Barrett. 2016. "Modeling Used Fuel Response to 30 cm Package Drops." In Patram 2016. PNNL-SA-120637.

2015

Klymyshyn N.A., N.P. Barrett, K.I. Johnson, and B.D. Hanson. 2015. Update: Structural Uncertainty of Used Nuclear Fuel in Dry Storage Canisters. PNNL-24669. Richland, WA: Pacific Northwest National Laboratory.

Klymyshyn N.A., H.E. Adkins, J. Piotter, and C. Bajwa. 2015. "Closure Bolt Modeling for Seal Evaluation Under Extreme Thermal Loads." In Proceedings of the ASME 2015 Pressure Vessels & Piping Conference. PNNL-SA-109678.

2014

Klymyshyn N.A., N.K. Karri, H.E. Adkins, and B.D. Hanson. 2014. Structural Uncertainty of Used Nuclear Fuel in Dry Storage Canisters. PNNL-23710. Richland, WA: Pacific Northwest National Laboratory.

Klymyshyn N.A., P.J. Jensen, S.E. Sanborn, and B.D. Hanson. 2014. Fuel Assembly Shaker and Truck Test Simulation. PNNL-23688. Richland, WA: Pacific Northwest National Laboratory.

2013

Klymyshyn N.A. 2013. "PNNL Tank Mass Estimator for Cross Comparison of Type 1, Type 3, and Type 4 Pressure Vessels ("Tankinator")." PNNL-SA-93460. Richland, WA: Pacific Northwest National Laboratory.

Klymyshyn N.A., H.E. Adkins, C.S. Bajwa, and J. Piotter. 2013. "Package Impact Models as a Precursor to Cladding Analysis." Journal of Pressure Vessel Technology 135, no. 1:Article No. 011601. PNNL-SA-87876. doi:10.1115/1.4007469