Faculty Directory

Groth, Katrina

Groth, Katrina

Assistant Professor
Mechanical Engineering
Center for Risk and Reliability
Maryland Energy Innovation Institute
0151C Glenn L. Martin Hall, College Park, MD 20742

Katrina Groth is an Assistant Professor in Mechanical Engineering at the University of Maryland.  Dr. Groth is the associate director for research for UMD's Center for Risk and Reliability and the director of the Systems Risk and Reliability Analysis lab (SyRRA). Groth’s research focuses on the development of models and computational methods for risk analysis of complex engineering systems. Her research blends reliability engineering, probability theory, causality, Bayesian methods, machine learning and cognitive science to provide human-focused insights. Groth’s research has enhanced system safety, U.S. policy, and international regulations for applications including hydrogen fuel cell vehicle infrastructure, oil and gas pipelines, commercial aviation, and nuclear power.

Prior to joining UMD, she served as Principal R&D Engineer at Sandia National Laboratories, where she led multiple projects in probabilistic risk assessment, human reliability analysis and hydrogen safety. Groth developed HyRAM (hyram.sandia.gov), a risk assessment and consequence analysis framework for hydrogen infrastructure, which enabled development of the first United States and international safety standards for hydrogen fueling stations (NFPA 2 and ISO 19880-1). Groth has published over 60 journal and conference papers, 30 technical reports, and 2 software packages, and holds 1 patent. She received her Ph.D. in Reliability Engineering from the University of Maryland in 2009. She also holds an M.S. in Reliability Engineering and B.S. in Nuclear Engineering from UMD. Groth is also a trustee for the National Museum of Nuclear Science & History.


  • Ph.D., Reliability Engineering, University of Maryland (2009)
  • M.S., Reliability Engineering, University of Maryland (2008)
  • B.S., Nuclear Engineering, University of Maryland (2004)

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
  • Sandia National Laboratories’ Public Good Innovator Award for HyRAM 1.0, May 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

Selected Professional Service & Memberships

  • Editorial Board, Reliability Engineering & System Safety
  • Board of Trustees, National Atomic Museum Foundation, Albuquerque, NM, 2016 - present
  • Associate Technical Chair, International Conference on Probabilistic Safety Assessment and Management (PSAM 14), Los Angeles, CA, Sep. 16-21, 2018
  • Technical Program Committee, European Society for Reliability Annual Meeting (ESREL), 2015-present
  • Associate Editor, Reliability and Maintainability Symposium (RAMS), 2015 - 2018
  • Co-chair, Sub-task on safety methodology and distances, ISO TC197 WG24, 2014 - 2017
  • 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 - 2017
  • International Association for Hydrogen Energy (IAHE) - Founding member of Hydrogen Safety Division
  • American Society of Mechanical Engineers (ASME)
  • Society for Risk Analysis (SRA)
  • American Nuclear Society (ANS)
  • Institute of Electrical and Electronics Engineers (IEEE) Reliability Society - Senior Member

Risk analysis, system safety, human reliability analysis, causality, human-machine teams, decision making under uncertainty, Bayesian Networks, Bayesian methods, complex systems.

Applications in: nuclear power plants, hydrogen safety, fueling stations, oil and gas systems, energy, transportation, infrastructure.

  • ENRE 602 - Reliability Analysis
  • ENRE 447 - Fundamentals of Reliability Engineering

See my Google Scholar Profile for full list including journal papers, conference papers, and technical reports: https://scholar.google.com/citations?user=KLstwMcAAAAJ&hl=en

Journal papers (last updated May 2019):

  • Moradi, Ramin and Groth, Katrina M. Hydrogen storage and delivery: Review of the state of the art technologies and risk and reliability analysis, International Journal of Hydrogen Energy, 44(23):12254–12269, May 2019.
  • Groth, Katrina M. Denman, Matthew R. Jones, Thomas B. Darling, Michael C. & Luger, George F. Building and using dynamic risk-informed diagnosis procedures for complex system accidents. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability. 2019.
  • Darling, Michael C. Luger, George F. Jones, Thomas B. Denman, Matthew R. & Groth,Katrina M. Intelligent modeling for nuclear power plant accident management. International Journal of Artificial Intelligence Tools, 27(2), 2018.
  • Heidary, Roohollah, Gabriel, Steven A. Modarres, Mohammad, Groth, Katrina M.& Vahdati, Nader. A review of data-driven oil and gas pipeline pitting corrosion growth models applicable for prognostic and health management. International Journal of Prognostics and Health Management, 9(1), 2018.
  • 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.

Assessing Risk and Reliability for Hydrogen Systems

Through engineering models and data, the Center for Risk and Reliability is enhancing a larger understanding of hydrogen safety.