Primary research interests include fracture mechanics, probabilistic mechanics, scaling, and structural reliability. Current research efforts focus on deterministic and probabilistic modeling of fracture and fatigue of structures that are made of brittle heterogeneous (quasibrittle) materials such as concrete, fiber composites, tough ceramics, etc. The research goal is to provide a deep understanding of the behavior of quasibrittle materials, and to develop a sound scientific basis for the design of various engineering structures including buildings, infrastructure, aircraft, ships, medical implants, etc.
Honors and Awards
IASSAR Early Achievement Research Award, The International Association for Structural Safety and Reliability, 2022
Society of Engineering Science Young Investigator Medal, 2019
EMI Leonardo da Vinci Award, ASCE, 2017
Army Research Office Young Investigator Award, 2015
Z. P. Bažant, J.-L. Le, and M. Salviato (2021). Quasibrittle Fracture Mechanics: A First Course, Oxford University Press, Oxford, U.K. (336 pages)
Z. P. Bažant and J.-L. Le (2017). Probabilistic Mechanics of Quasibrittle Structures: Strength, Lifetime, and Size Effect, Cambridge University Press, U.K.
A. Gorgogianni, J. Eliáš, and J.-L. Le (2022) "Mesh objective stochastic simulations of quasibrittle fracture," Journal of the Mechanics and Physics of Solids, 159, 104745.
A. Gorgogianni, J. Eliáš, and J.-L. Le (2020). “Mechanism-based energy regularization in computation modeling of quasibrittle fracture,” Journal of Applied Mechanics, ASME, 87(9), 091003.
A. Tripathi, S. Mantell, and J.-L. Le (2019). “A morphology based constitutive model for high density polyethylene,” Mechanics of Materials, 137, . doi: 10.1016/j.mechmat.2019.103091
Z. Xu, R. Ballarini, and J.-L. Le (2019.) “A renewal weakest-link model of strength distribution of polycrystalline silicon MEMS structures,” Journal of Applied Mechanics, ASME, 86(8), . doi: 10.1115/1.4043440
Z. Xu and J.-L. Le (2018). “On power-law tail distribution of strength statistics of brittle and quasibrittle structures,” Engineering Fracture Mechanics, 197, 80-91. doi: 10.1016/j.engfracmech.2018.04.009
J.-L. Le, J. Eliáš, A. Gorgogianni, J. Vievering, and J. Kveton (2018). “Rate-dependent scaling of dynamic tensile strength of quasibrittle structures,” Journal of Applied Mechanics, ASME, 85(2), . doi: 10.1115/1.4038496
Z. Xu and J.-L. Le (2017). “A first passage model for probabilistic failure of polycrystalline silicon MEMS structures,” Journal of the Mechanics and Physics of Solids, 99, 225–241. doi: 10.1016/j.jmps.2016.11.007