Kshitiz Upadhyay

Assistant Professor, Mechanical Engineering

PhD, University of Florida (2020)

Expertise

Mechanics of soft materials • constitutive modeling • high strain rate mechanical characterization, scientific machine learning • tissue biomechanics • traumatic brain injury.

Biographical Sketch

Dr. Kshitiz Upadhyay is an Assistant Professor in the Department of Mechanical and Industrial Engineering at LSU. His research interests lie in the broad area of mechanics of soft materials, with emphasis on constitutive modeling, injury biomechanics, experimental solid mechanics, and data-driven methods. Current research in Dr. Upadhyay's Soft Materials Mechanics Laboratory is funded by the National Science Foundation (NSF), the Louisiana Board of Regents (LABoR), and LSU. Dr. Upadhyay serves as an Associate Guest Editor of Frontiers in Mechanical Engineering. He has received multiple awards for his research, including the Early Career Research Award from the World Council of Biomechanics in 2022, the Best Dissertation Award from the Department of Mechanical and Aerospace Engineering at the University of Florida (UF) in 2020, and the Gator Engineering Attribute Award of proffesional excellence from UF in 2020. Prior to joining LSU, Dr. Upadhyay worked as a Postdoctoral Fellow in the Hopkins Extreme Materials Institute at Johns Hopkins University (2020-2022). He received his PhD and MS in Mechanical Engineering from the University of Florida (2020 and 2019), and BTech. in Mechanical Engineering from the National Institute of Technology–Bhopal, India (2014).

Key Publications

Upadhyay, K., Giovanis, D.G., Alshareef, A., Knutsen, A.K., Johnson, C.L., Carass, A., Bayly, P.V., Shields, M.D., & Ramesh, K.T. (2022). Data-driven Uncertainty Quantification in Computational Human Head Models. Computer Methods in Applied Mechanics and Engineering, 398, 115108. doi: 10.1016/j.cma.2022.115108
Alshareef, A., Knutsen, A.K., Johnson, C.L., Carass, A., Upadhyay, K., Bayly, P.V., Pham, D.L., Prince, J.L., & Ramesh, K.T. (2021). Integrating Material Properties from Magnetic Resonance Elastography into Subject-Specific Computational Models for the Human Brain. Brain Multiphysics, 100038. doi: 10.1016/j.brain.2021.100038
Bayly, P.V., Alshareef, A., Knutsen, A.K., Upadhyay, K., Okamoto, R.J., Carass, A., Butman, J.A., Pham, D.L., Prince, J.L., Ramesh, K.T., & Johnson, C.L. (2021). MR imaging of human brain mechanics in vivo: New measurements to facilitate the development of computational models of brain injury. Annals of Biomedical Engineering, 49, 2677-2692. doi: 10.1007/s10439-021-02820-0
Upadhyay, K., Spearot, D., & Subhash, G. (2021). Validated Tensile Characterization of the Strain Rate Dependence in Soft Materials. International Journal of Impact Engineering, 156, 103949. doi: 10.1016/j.ijimpeng.2021.103949
Upadhyay, K., Subhash, G., & Spearot, D. (2020). Visco-hyperelastic constitutive modeling of strain rate sensitive soft materials. Journal of the Mechanics and Physics of Solids, 135, 103777. doi: 10.1016/j.jmps.2019.103777
Upadhyay, K., Subhash, G., & Spearot, D. (2020). Hyperelastic constitutive modeling of hydrogels based on primary deformation modes and validation under 3D stress states. International Journal of Engineering Science, 154, 103314. doi: 10.1016/j.ijengsci.2020.103314
Luo, K., Upadhyay, K., Subhash, G., & Spearot, D.E. (2019). Transient-State Rheological Behavior of Poly(ethylene glycol) Diacrylate Hydrogels at High Shear Strain Rates. Macromolecules, 52(15), 5860-5871. doi: 10.1021/acs.macromol.9b00820
Upadhyay, K., Bhattacharyya, A., Subhash, G., & Spearot, D. (2019). Quasi-static and high strain rate simple shear characterization of soft polymers. Experimental Mechanics, 59(5), 733-747. doi: 10.1007/s11340-019-00507-1
Upadhyay, K., Subhash, G., & Spearot, D. (2019). Thermodynamics-based stability criteria for constitutive equations of isotropic hyperelastic solids. Journal of the Mechanics and Physics of Solids, 124, 115-142. doi: 10.1016/j.jmps.2018.09.038