Research

The broad aim of our research is to develop theoretical and computational methods validated with experiments for the assessment, design, optimization, and manufacturing of novel materials and structures in various applications. In particular, our recent interests are in problems related to additive manufacturing of materials, hierarchical materials, multifunctional composites, and image-based (CT, MRI) multiscale modeling of biological materials (details are in the references with links below).

Additive manufacturing of materials

Fracture simulations of AM polymers printed at 45°/-45° raster angles with various inter-filament bonding strengths.

Reference: J. Li, S. Yang, D. Li, V. Chalivendra, Eng Fract Mech, 2018.

Micro-CT images of FDM ABS samples showing the porosity network and pore size distributions, which are used in FE-RVE models to predict orthotropic behaviors.

Reference: P. Biswas, S. Guessasma, J. Li, Acta Mech, 2019.

ARIMA-GMDH Neural Network learning to predict residual stress in AM polymers.

Reference: O. Aljarrah, J. Li, W. Huang, A. Heryudono, J. Bi, Int J Adv Manuf Technol. 2019.

Process simulations of 3D printed polymer drone propeller.

Reference: P. Biswas, J. Li, A. Heryudono, J. Bi, SAOE Proceedings, 2018.

Soft materials, flexible and deployable structures

nasa-superpressure-ballon

References: J. Li, K. Kwok and S. Pellegrino, Mech Time-Depend Mater, 2016.

Hierarchical materials and lightweight structures

fractalm

References: J. Li and M. Ostoja-Starzewski, Proc R Soc A, 2009; M. Ostoja-Starzewski and J. Li, ZAMP, 2009; J. Li and M. Ostoja-Starzewski, Int J Eng Sci, 2011; M. Ostoja-Starzewski, J. Li, H. Joumaa and P.N. Demmie, ZAMM, 2013.

Thermo-elasto-plasticity, fracture and deformation patterns

elpl

References: J. Li and M. Ostoja-Starzewski, ASME J App Mech, 2010; J. Li and M. Ostoja-Starzewski, Proc R Soc A, 2010; J. Li, A. Saharan, S. Koric and M. Ostoja-Starzewski, Phil Mag, 2012; J. Li and M. Ostoja-Starzewski, ASCE J Eng Mech, 2014.

Image-based (CT, MRI) multiscale modeling of biological materials

trab1

lacuna

References: E. Hamed, E. Novitskaya, J. Li, P.-Y. Chen, I. Jasiuk and J. McKittrick, Acta Biomater, 2012; E. Hamed, E. Novitskaya, J. Li, I. Jasiuk and J. McKittrick, Mat Sci Eng C, 2015; M. Chittenden, A. Najafi, J. Li and I. Jasiuk, J Mech Med Biol, 2015.