Florin Bobaru
Professor Mechanical & Materials Engineering University of Nebraska-Lincoln
Contact
- Address
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NH W355
Lincoln NE 68588-0526 - Phone
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402-472-8348 On-campus 2-8348
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fbobaru2@unl.edu
- Website
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Google Scholar Profile
Have you ever wondered why glass breaks in such complex patterns, fragments, and chips? Or how does the corrosion of a few bolts and plates bring an entire bridge down? Our research group works on computational models that answer such questions and explain the behavior observed experimentally in some of the most challenging problems that have puzzled researchers for decades. We use these models to solve problems with heat and mass diffusion, dynamic fracture, and fragmentation. Recent focus is on peridynamics for impact fracture in glass, glassy-polymers, polycrystalline ceramics, and fiber-reinforced composites; fracture in concrete induced by corrosion; corrosion damage and Stress Corrosion Cracking; dynamics of granular materials and their interaction with elastic media, multidisciplinary optimization, inverse problems, and multiscale and multiphysics methods.
Education
- Ph.D., Theoretical and Applied Mechanics, Cornell University, Ithaca, NY, 2001
- M.S., Mathematics and Mechanics of Solids, University of Bucharest, Romania, 1997
- B.S., Mathematics and Mechanics, University of Bucharest, Romania, 1995
Research Interests
- Damage and fracture with peridynamics
- Modeling of corrosion damage and stress corrosion cracking
- Damage in heterogeneous materials (fiber-reinforced composites, polycrystalline ceramics, etc.)
- Dynamics of Granular Materials
- Optimization of material composition and optimal shape design
Selected Publications
- S. Jafarzadeh, J. Zhao, M. Shakouri, F. Bobaru, "A peridynamic model for crevice corrosion damage," Electrochimica Acta, 401, 139512 (2022). https://authors.elsevier.com/a/1e3KT33-eNnDv , https://doi.org/10.1016/j.electacta.2021.139512
- J. Zhao, S. Jafarzadeh, M. Rahmani, Z. Chen, Y.-R. Kim, F. Bobaru, "A peridynamic model for galvanic corrosion and fracture", Electrochimica Acta, 391, 138968 (2021). https://doi.org/10.1016/j.electacta.2021.138968
- P. Wu, F. Yang, Z. Chen, F. Bobaru, "Stochastically homogenized peridynamic model for dynamic fracture analysis of concrete", Engineering Fracture Mechanics, 253, 107863 (2021). https://doi.org/10.1016/j.engfracmech.2021.107863
- F. Mousavi, S. Jafarzadeh, F. Bobaru, "An ordinary state-based peridynamic elastoplastic 2D model consistent with J2 plasticity", International Journal of Solids and Structures, 229, 111146 (2021) https://doi.org/10.1016/j.ijsolstr.2021.111146
- L. Wang, F. Bobaru, "Connections Between the Meshfree Peridynamics Discretization and Graph Laplacian for Transient Diffusion Problems", Journal of Peridynamics and Nonlocal Modeling, 3(4), 307-326 (2021) https://rdcu.be/chqHK, https://doi.org/10.1007/s42102-021-00053-2, http://link.springer.com/article/10.1007/s42102-021-00053-2
- T. Mei, J. Zhao, Z. Liu, X. Peng, Z. Chen, F. Bobaru, "The Role of Boundary Conditions on Convergence Properties of Peridynamic Model for Transient Heat Transfer," Journal of Scientific Computing, 87, 50 (2021) https://doi.org/10.1007/s10915-021-01469-0
- S. Jafarzadeh, L. Wang, A. Larios, F. Bobaru, "A fast convolution-based method for peridynamic transient diffusion in arbitrary domains", Computer Methods in Applied Mechanics and Engineering, 375, 113633, (2021). https://doi.org/10.1016/j.cma.2020.113633
- L. Wu, D. Huang, F. Bobaru, "A reformulated rate-dependent visco-elastic model for dynamic deformation and fracture of PMMA with peridynamics," International Journal of Impact Engineering, 149, 103791 (2021). https://doi.org/10.1016/j.ijimpeng.2020.103791
- S. Niazi, Z. Chen, F. Bobaru, "Crack nucleation in brittle and quasi-brittle materials: A peridynamic analysis," Theoretical and Applied Fracture Mechanics, 112, 102855, (2021). https://doi.org/10.1016/j.tafmec.2020.102855
- Z. Chen, S. Jafarzadeh, J. Zhao, F. Bobaru, "A coupled mechano-chemical peridynamic model for pit-to-crack transition in stress-corrosion cracking," Journal of the Mechanics and Physics of Solids, 146, 104203, (2021) https://doi.org/10.1016/j.jmps.2020.104203