Associate Professor
Geotechnical Engineering & Geomechanics • Engineering Science • Materials Science & Engineering

Office: ECOT 421


  • Ph.D., Civil and Environmental Engineering, Stanford University, 1998
  • S.M., Aeronautics and Astronautics, Massachusetts Institute of Technology, 1993
  • B.S.E., Civil Engineering Systems, University of Pennsylvania, 1991

Honors and Distinctions:

  • Research Development Award, Department of Civil, Environmental and Architectural Engineering, University of Colorado Boulder, 2012
  • R&D 100 Award, R&D Magazine, 2000
  • Sidney Shore Award, University of Pennsylvania, 1991

Professional Affiliations:

  • American Society of Civil Engineers (ASCE)
  • Engineering Mechanics Institute (EMI)


  • Computational multiscale mechanics for porous and particulate materials.
  • Mechanics of single phase (dry) and multiphase (partially-saturated and saturated, multi-constituent) porous materials, such as geomaterials (soil, rock), concrete, and soft biological tissues.
  • Damaged polycrystalline metals.
  • Generalized continuum theories for multiscale modeling of inelastic deformation.
  • Applications include modeling geotechnical, geological, and structural engineering failures, high strain rate loading of polycrystalline metals and soils, and visco-poroelastic response of ocular tissues and other biological tissues.

Latest Publications:

  1. Ma, G., Zhou, W., Regueiro, R.A., Wang, Q., Chang, X. (2017) Modeling the fragmentation of rock grains using computed tomography and combined FDEM, Powder Technology 308:388-397.
  2. Stender, M.E., Regueiro, R.A., Ferguson, V.L. (2016) A Poroelastic Finite Element Model of the Bone-Cartilage Unit to Determine the Effects of Changes in Permeability with Osteoarthritis, Computer Methods in Biomechanics and Biomedical Engineering, in press.
  3. Regueiro, R.A., Duan, Z., Wang, W., Sweetser, J.D.,  Jensen, E.W. (2016) General formulation of a poromechanical cohesive surface element with elastoplasticity for modeling interfaces in fluid-saturated geomaterials, Int. J. Multi. Comp. Eng. 14(4):323-347.
  4. Stender, M.E., Carpenter, D., Regueiro, R.A., Ferguson, V.L. (2016) An Evolutionary Model of Osteoarthritis Including Articular Cartilage Damage and Bone Remodeling in a Computational Study, Journal of Biomechanics 49(14):3502-3508.
  5. Regueiro, R.A., Duan, Z., Yan, B. (2016) Overlapped-coupling between spherical discrete elements and micropolar finite elements in one dimension using a bridging-scale decomposition for statics, Eng. Comput. 33(1):28-63.
  6. Bennett, K., Regueiro, R.A., Borja, R.I. (2016) Finite strain elastoplasticity considering the Eshelby stress for materials undergoing plastic volume change, Int. J. Plast. 77:214-245.
  7. Stender, M.E., Regueiro, R.A., Klisch, S.M., Ferguson, V.L. (2015) An equilibrium constitutive model of anisotropic cartilage damage to elucidate mechanisms of damage initiation and progression, ASME J. Biomech. Eng. 137(8):1-13.
  8. Zhang, B., Regueiro, R.A. (2015) On large deformation granular strain measures for generating stress-strain relations based upon three-dimensional discrete element simulations, Int. J. Solids Struct 66:151-170.
  9. Burd, H.J., Regueiro, R.A. (2015) Finite element implementation of a multiscale model of the human lens capsule, Biomech. Model. Mechanobiology 14(6):1363-1378.
  10. Kim, J., Wang, W., Regueiro, R.A. (2015) Hybrid time integration and coupled solution methods for nonlinear finite element analysis of partially saturated deformable porous media at small strain, Int. J. Numer. Anal. Methods Geomech. 39(10):1073-1103.