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Groth, Katrina

Assistant Professor
Department of Mechanical Engineering
0151C Glenn L. Martin Hall College Park, MD 20742

Research Interests 

Risk assessment; energy infrastructure; modeling and simulation; decision making under uncertainty; Bayesian Networks and Bayesian methods; decision support systems


Katrina M. Groth is an Assistant Professor in Mechanical Engineering at the University of Maryland.  Dr. Groth received her Ph.D. in reliability engineering from the University of Maryland in 2009 and also holds a B.S. in nuclear engineering. Before joining the University of Maryland in 2017, Dr. Groth was a Principal Member of Technical Staff at Sandia National Laboratories in Albuquerque, NM, where she led research projects to develop quantitative risk assessment capabilities to support decision making for energy systems and infrastructure, including hydrogen fueling stations, nuclear power plants, and natural gas railroad tenders.  During her time at Sandia, Groth developed HyRAM (, a risk assessment and consequence analysis framework for hydrogen infrastructure. HyRAM enabled the development of the first United States and international safety standards for hydrogen fueling stations (NFPA 2 and ISO 19880-1). Dr. Groth has also made important contributions to the field of nuclear safety through her work on human reliability analysis and decision support systems for diagnosis of severe accidents.

Groth has received numerous awards, including a DOE Hydrogen and Fuel Cells Program R&D Award (2016) for contributions to hydrogen safety and risk assessment, a best paper award from the International Conference on Hydrogen Safety (2015), and the George Apostolakis Fellowship award (2012) for early career accomplishments in probabilistic risk assessment. She has authored over thirty-five journal and conference papers on risk analysis, hydrogen safety, and human reliability analysis. Dr. Groth is also a member of the Board of Trustees for the National Museum of Nuclear Science & History in Albuquerque, NM.


  • B.S., Nuclear Engineering, University of Maryland
  • M.S., Reliability Engineering, University of Maryland
  • Ph.D., Reliability Engineering, University of Maryland

Honors and Awards 

  • DOE Hydrogen and Fuel Cells Program R&D Award “for outstanding leadership and technical contribution to hydrogen safety and risk assessment” in Safety, Codes, and Standards. June, 2016
  • Robert Schefer Memorial Best Paper Award,“HyRAM: A methodology and toolkit for Quantitative Risk Assessment of Hydrogen Systems,” International Conference on Hydrogen Safety (ICHS), Tokyo, Japan, October, 2015
  • George Apostolakis Fellowship Award “in recognition of early career accomplishments and contributions to the field of Probabilistic Safety Assessment,” International Association for Probabilistic Safety Assessment and Management (IAPSAM), Helsinki, Finland, 2012

Professional Memberships 

  • Society for Risk Analysis (SRA)
  • American Nuclear Society (ANS)
  • Institute of Electrical and Electronics Engineers (IEEE) Reliability Society
  • International Association for Hydrogen Energy (IAHE) - Founding member of Hydrogen Safety Division
  • Associate Editor, Reliability and Maintainability Symposium (RAMS), 2015 - Present
  • Co-chair, Sub-task on safety methodology and distances, ISO TC197 WG24, 2014 - Present
  • Technical Program Committee, European Society for Reliability Annual Meeting (ESREL), 2015-present
  • Scientific Advisory Board, 1st International Conference on Human Error, Reliability, Resilience, and Performance (HERPP), 2017
  • Leader, Task A (safety integration toolkits), IEA/HIA Task 37, 2014 - Present

Selected Publications 

  • Katrina M. Groth and Ethan S. Hecht. HyRAM: A methodology and toolkit for quantitative risk assessment of hydrogen systems. International Journal of Hydrogen Energy. 42(11): 7485-7493, March 2017.
  • C. San Marchi, E. S. Hecht, I. W. Ekoto, K. M. Groth, C. LaFleur, B. P. Somerday, R. Mukundan, T. Rockward, J. Keller, and C. W. James. Overview of the DOE hydrogen safety, codes and standards program, part 3: Advances in research and development to enhance the scientific basis for hydrogen regulations, codes and standards. International Journal of Hydrogen Energy, 42(11): 7263-7274, March 2017.
  •  A. C. LaFleur, A. B. Muna, and K. M. Groth. Application of quantitative risk assessment for performance-based permitting of hydrogen fueling stations. International Journal of Hydrogen Energy, 42(11): 7529-7535, March 2017.
  • T. Skjold, D. Siccama, H. Hisken, A. Brambilla, Prankul Middha, K. M. Groth, and A. C. LaFleur. 3D risk management for hydrogen installations. International Journal of Hydrogen Energy, 42(11): 7721-7730, March 2017.
  • Kilian Zwirglmaier, Daniel Straub, and Katrina M. Groth. Capturing cognitive causal paths in human reliability analysis with Bayesian network models. Reliability Engineering & System Safety, 158:117-129, February 2017.
  • Huafei Liao, Katrina Groth, and Susan Stevens-Adams. Challenges in leveraging existing human performance data for quantifying the IDHEAS HRA method. Reliability Engineering & System Safety, 144:159-169, December 2015.
  • Katrina M. Groth, Curtis L. Smith, and Laura P. Swiler. A Bayesian method for using simulator data to enhance human error probabilities assigned by existing HRA methods. Reliability Engineering & System Safety, 128:32-40, 2014.
  • Katrina M. Groth and Laura P. Swiler. Bridging the gap between HRA research and HRA practice: A Bayesian network version of SPAR-H. Reliability Engineering and System Safety, 115:33-42, July 2013.
  • Katrina M. Groth and Ali Mosleh. A data-informed PIF hierarchy for model-based human reliability analysis. Reliability Engineering and System Safety, 108:154-174, December 2012.
  • Jeffrey L. LaChance, Bobby Middleton, and Katrina M. Groth. Comparison of NFPA and ISO approaches for evaluating separation distances. International Journal of Hydrogen Energy, 37(22):17488-17496, November 2012.
  • Katrina M. Groth and Ali Mosleh. Deriving causal Bayesian networks from human reliability analysis data: A methodology and example model. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 226:361-379, August 2012.
  • Katrina Groth, Chengdong Wang, and Ali Mosleh. Hybrid causal methodology and software platform for probabilistic risk assessment and safety monitoring of socio-technical systems. Reliability Engineering & System Safety, 95(12):1276-1285, 2010.
  • Takashi Kashiwagi, Fangming Du, Karen I. Winey, Katrina M. Groth, John R. Shields, Severine P. Bellayer, Hansoo Kim, and Jack F. Douglas. Flammability properties of polymer nanocomposites with single-walled carbon nanotubes: effects of nanotube dispersion and concentration. Polymer, 46(2):471-481, January 2005.
  • Takashi Kashiwagi, Eric Grulke, Jenny Hilding, Katrina Groth, Richard Harris, Kathryn Butler, John Shields, Semen Kharchenko, and Jack Douglas. Thermal and flammability properties of polypropylene/carbon nanotube nanocomposites. Polymer, 45(12):4227-4239, May 2004.