Mehrdad Negahban

Mehrdad Negahban 

Mehrdad Negahban
Contact Information:
W311 NH
Lincoln: City Campus
(402) 472-2397
mnegahban@unl.edu
Email   
Personal Links:

Professor and U.S. Director of Advanced Mechanics and Materials Engineering International Laboratory (AMME-International)
  • Ph.D. (1988): University of Michigan, Applied Mechanics, Ann Arbor, Michigan
  • M.S.E. (1984): University of Michigan, Applied Mechanics, Ann Arbor, Michigan
  • B.S. (1982): Iowa State University of Science and Technology, Mechanical Engineering, Ames, Iowa

Areas of Research and Professional Interest
  • Theoretical, computational, and experimental studies to characterize large deformation thermo-mechanical response of materials, in particular polymers.
  • Simulation of the effects of crystallization on the mechanical behavior of polymers under large deformations.
  • The study of the effects of crystallization on failure and the redistribution of stress in polymer matrix composites. Simulation of the manufacturing of thin film extruded polymers.
  • Experimental investigation and theoretical modeling of large plastic forming and shape recovery in amorphous polymers.
Courses Taught


Experience

Recent Graduates:
  • Ashwani Kumar Goel, Ph.D., "Large deformation thermodynamically consistent constitutive model for glassy polymers," University of Nebraska-Lincoln, Lincoln, Nebraska, December, 2009.
  • Pierre Delabarre (with Jean-Marc Saiter), Master M2, Materials Engineering (CEMPI), "The Characterization of polycarbonate by DMA and other mechanical testing," University of Rouen, Rouen, France, September, 2004.
  • Kyle Wayne Strabala, "The Effects of Combined Compression and Aging on the Properties of Glassy Polycarbonate," MS, Engineering Mechanics, University of Nebraska-Lincoln, August, 2009.
  • Kyle Wayne Strabala, "The Effects of Combined Compression and Aging on the Properties of Glassy Polycarbonate," MS, Materials Engineering, University of Rouen, Rouen, France, August, 2009.
  • Cline Hayot, "Viscoelastic properties of the cell walls of Arabidopsis thaliana using nanoindentation," MS, Engineering Mechanics, University of Nebraska-Lincoln, August, 2009.
  • Cline Hayot, "Viscoelastic properties of the cell walls of Arabidopsis thaliana using nanoindentation," MS, Materials Engineering, University of Rouen, Rouen, France, August, 2009.
  • Ruojuan Ma, Ph.D., now with Visteon. Thesis: "A study of the influence of uniform crystallization on the mechanical response of polymers and polymer-matrix composites"
  • Juliet Dauphin, "Crystallization studies in PET"-University of Rouen, France.
  • Philippe Dos Santos Claro, "Crystallization in PET during ransient thermal loading" - University of Rouen, France.

Selected Publications

Publications:
  • M. Negahban, A. Goel, L. Zhang, "Evaluating the development of elastic anisotropy with plastic flow," Acta Mechanica, vol. 208, 2009, pages 259267.
  • M. Negahban, A. Goel, P. Marchon, A. Azizinamini, "Geometrically Exact Nonlinear Extended-Reissner/Mindlin Shells: Fundamentals, Finite Element Formulation, Elasticity," International Journal for Computational Methods in Engineering Science and Mechanics vol. 10, 2009, pages 430-449.
  • L. Delbreilh, M. Negahban, M.Benzohra, C. Lacabanne, J.-M. Saiter, "Glass transition investigated by a combined protocol using thermostimulated depolarization currents and differential scanning calorimetry," Journal of Thermal Analysis and Calorimetry vol. 96, 2009, pages 865-871.
  • A. Goel, K. Strabala, M. Negahban, J. Turner, "Modeling the development of elastic anisotropy with plastic flow for glassy polycarbonate," Polymer Engineering and Science vol. 49, 2009, pages 1951-1959.
  • J.-M. Saiter, M. Negahban, P. dos Santos Claro, P. Delabare and M.-R. Garda, "Quantitative and Transient DSC Measurements I. Heat Capacity and Glass Transition," Journal of Materials Education, vol. 30, 2008, pages 51-95.
  • M. Negahban, K. Strabala, P. Delabarre, A. Goel, R. Feng, J. Grenet, "Temperature dependence of the back-stress in shear for glassy polycarbonate," Macromolecular Symposia, vol. 258, 2007, pages 142-151.
Dissertation:
  • "Material Symmetry and the Evolution of Anisotropies in First Gradient Theories of Nonlinear Material Behavior; Inelasticity; Polymer Crystallization."
New Book: Published 2012:

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