Qingli Dai

Qingli Dai

Contact

Assistant Professor, Civil and Environmental Engineering

  • PhD, University of Rhode Island

Biography

Dr. Dai’s research focuses on sustainable materials and structures for civil infrastructure applications. Her research focuses on sustainable materials and structures for civil infrastructure applications. Her research integrates computational analysis, experimental testing and sensor techniques to investigate asphalt mixture performance, asphalt pavement distresses, cement microstructure and concrete durability. Her research has also been involved with other multidisciplinary areas: micromechanics, finite element method, discrete element method, fracture mechanics, acoustic emission detection, imaging processing, rock mechanics, self-healing materials, alternative asphalt materials, active materials and structural damping control. She has taught class such as matrix structural analysis, finite element analysis and advanced mechanics of materials.

Dr. Dai has been one of the principle investigators of research projects funded by National Science Foundation and State Department of Transportation. Her group has been investigating the performance and behavior of asphalt mixtures, viscoelastic responses of asphalt pavements, fracture simulation, self-healing construction materials and internal frost-damage in concrete. She has authored and co-authored more than 40 peer reviewed papers including 25 journal articles in ASCE Journal of Engineering Mechanics, ASCE Journal of Materials in Civil Engineering, Mechanics of Materials,  Construction & Building Materials, Materials and Structures, International Journal for Numerical and Analytical Methods in Geomechanics, International Journal of Pavement Engineering, Journal of Transportation Research Board, Journal of Association of Asphalt Paving Technologists, and Canadian Journal of Civil Engineering. She has presented technical papers in various international and national conferences. She is a member of ASCE granular material committee, pavement committee, and geophysics committee.

Links of Interest

Research Interests

  • Computational analysis for material research: multiscale modeling, finite element analysis, discrete element analysis, constitutive modeling, fracture simulation and molecular dynamics
  • Properties and performance of asphalt mixtures
  • Cement microstructure and concrete durability
  • Self-healing construction materials, alternative asphalt materials
  • Active piezoelectric materials, structural damping control
  • Acoustic emission damage detection, X-ray tomography, imaging processing

Publications

  • Ng, K. and Dai, Q., “An EXtended Finite Element Model for Predicting Micro-Crack Evolution and Fracture Properties within Idealized Cement-Based Materials,” Journal of Engineering Mechanics, ASCE, in press.
  • Ng, K. and Dai, Q., “Investigation of Micro-Crack Behavior of Infrastructure Materials with EXtended Finite Element Method and Image Analysis,” Journal of Materials in Civil Engineering, ASCE, in press.
  • Dai, Q., Yu, X., Ng, K. and Liu, Z., “Development of Micromechanics Models and Innovative Sensor Technologies to Evaluate Internal-Frost Damage of Concrete,” Journal of the Transportation Research Board, in press.
  • Dai, Q., “A Three-Dimensional Micromechanical Finite Element Network Model for Damage-Coupled Elastic Behavior of Stone-Based Composite Materials,” Journal of Engineering Mechanics, ASCE, 137, 6, 410-421.
  • You, Z, Liu, Y.., and Dai, Q. (2011), "Three-dimensional Microstructural-based Discrete Element Viscoelastic Modeling of Creep Compliance Tests for Asphalt Mixtures." Journal of Materials in Civil Engineering, ASCE, 23, 1, 79-87.
  • Dai, Q. (2010), “Two- and Three-Dimensional Micromechanical Viscoelastic Finite Element Modeling of Stone-Based Materials with X-Ray Computed Tomography Images,” Construction & Building Materials, Elsevier, 25, 1102-1114.
  • You, Z., Mills-Beale, J., Foley, J. M., Roy, S., Odegard, G. M., Dai, Q., and Goh, S. W. (2010). "Nanoclay-modified asphalt materials: Preparation and characterization." Construction and Building Materials, 25, 1072-1078.