Costin Untaroiu

Associate Professor

Area(s) of Interest: Biomechanics, Tissue Engineering
Phone: 540-231-8997

Department of Biomedical Engineering and Mechanics
Collegiate Square Innovation Place (0151)
460 Turner Street, Suite 304
Blacksburg, VA 24061


  • B.S. /M.S., “Politehnica” University, Bucharest, Mechanical Engineering, 1990
  • B.S. /M.S., University of Bucharest, Applied Mathematics, 1996
  • Ph.D., “Politehnica” University, Bucharest, Mechanical Engineering – Rotordynamics, 1999
  • Ph.D., University of Virginia, Mechanical Engineering – Impact Biomechanics, 2005

Research Interests

  • Injury & Impact Biomechanics
  • Automobile safety design (passive and active restraint systems)
  • Computational Biomechanics and Crashworthiness simulations
  • Finite Element Optimization/Probabilistic Design
  • Mechanical Vibrations, Rotordynamics and Control

Recent Publications

  • Putnam, J.B., Somers, J.T., Wells, J.A., Perry, C.E., Untaroiu, C.D. (2015) Development and Evaluation of a Finite Element Model of the THOR for Occupant Protection of Spaceflight Crewmembers, Accident Analysis and Prevention , 82(9):244-256
  • Untaroiu, C.D. , Lu, Y-C., Siripurapu, S.K., Kemper A.R. (2015) Stochastic Modelling the Biomechanical and Injury Response of Human Liver Parenchyma under Tensile Loading, Journal of the Mechanical Behavior of Biomedical Materials, 47(15), 280-291
  • Putnam J., Untaroiu, C.D.*,  Littell, J., Annett M. (2015) Finite Element Model of the THOR-NT Dummy under Vertical Impact Loading for Aerospace Injury Prediction: Model Evaluation and Sensitivity Analysis, Journal of the American Helicopter Society, 60 (2), 1-10
  • Lu, Y-C., Untaroiu, C.D.  (2014) A Statistical Geometrical Description of the Human Liver for Probabilistic Occupant Models, Journal of Biomechanics, 47 (15), 3681-3688
  • Putnam J., Somers J., Untaroiu C.D. (2014) “The Development, Calibration and Validation of a Head-Neck Complex of THOR Mod Kit Finite Element Model”, Traffic Injury Prevention, 15(8):844-854
  • Lu Y-C, Kemper A.R., Untaroiu, C.D. (2014) “Effect of Storage on Tensile Material Properties of Bovine Liver”, Journal of the Mechanical Behavior of Biomedical Materials, 29(1): 339-349
  • Yue, N, Untaroiu C.D. (2014) “A Numerical Investigation on the Variation of Hip Injury Tolerance with Occupant Posture during Frontal Collisions”, Traffic Injury Prevention, 15(5): 513-522
  • Shin, J., Untaroiu, C.D. (2013) “Biomechanical and Injury Response of Human Foot and Ankle under Complex Loading”, Journal of Biomechanical Engineering/ASME Transactions, 135(10), 101008
  • Untaroiu, C.D. (2013) “The influence of the specimen shape and loading conditions on the parameter identification of a viscoelastic brain model”, Computational and Mathematical Methods in Medicine, vol. 2013, Article ID 460413
  • Lu, Y-C, Untaroiu C.D. (2013) “Statistical shape analysis of clavicular cortical bone with applications in development of percentile models”, Computer Methods and Programs in Biomedicine , 111(3): 613-628
  • Untaroiu, C.D., Lu Y-C, (2013) “Material characterization of liver parenchyma using specimen-specific finite element models and optimization techniques”, Journal of the Mechanical Behavior of Biomedical Materials , 26(10) 11-22.
  • Untaroiu C.D., Shin, J., Lu, Y-C, (2013) “Assessment of a Dummy Model in Crash Simulations using Rating Methods”, International Journal of Automotive Technology, 14(3): 395-405.
  • Lu, Y-C, Untaroiu C.D. (2013) “Statistical Investigation of the Change in Indentation-based Material Properties of Porcine Abdominal Organs due to Tissue Storage Methods”, Journal of Engineering in Medicine, Proc IMechE- Part H, 227(3):293-301.
  • Untaroiu, C.D. Yue, N., Shin, J. (2013) “A Finite Element Model of the Lower Limb for Simulating Automotive Impacts”, Annals of Biomedical Engineering, 41(3): 513-526.
  • Untaroiu, C.D. Adam, T, (2013) “Performance- based Classification of Occupant Posture to Reduce the Risk of Injury in a Collision”, IEEE Transactions on Intelligent Transportation Systems, 14(2): 565-573.