Fei Ren

Assistant Professor in Mechanical Engineering

Office Hours

Tuesday & Thursday 10:00 – 10:50 am


Fei Ren is an Assistant Professor in the Department of Mechanical Engineering at Temple University. He received his Ph.D in Materials Science and Engineering from Michigan State University in 2007. Prior to joining Temple University, he was a postdoctoral and then a staff scientist in the Materials Science and Technology Division at Oak Ridge National Laboratory. He has authored nearly 30 articles in peer reviewed journals and more than 50 presentations at technical conferences. He is currently an editorial board member of Advanced Materials and Processes published by ASM International and reviewer for a number of journals.


  • Ph.D, Materials Science and Engineering, Michigan State University, East Lansing, MI, 2007
  • B.S, Materials Science and Engineering, Tsinghua University, Beijing, China, 2002

Academic Appointments 

  • Staff Research Scientist, Oak Ridge National Laboratory, 2011 - 2013
  • Postdoctoral Scientist, Oak Ridge National Laboratory, 2009 - 2011
  • Postdoctoral Associate, Michigan State University, 2008 - 2009

Recent Publications 

  • Hongyu Zhou, Thomas L. Attard, Yanli Wang, Jy-An Wang, and Fei Ren, “Rehabilitation of notch damaged steel beam using a carbon fiber reinforced multiphase-matrix composite”, Composite Structure, Vol. 106, p. 690-702, 2013.
  • F. Ren, C. H. Mattus, J-A. Wang, and B. P. DiPaolo, “Effect of Projectile Impact and Penetration on the Phase Composition and Microstructure of High-performance Concretes”, Cement and Concrete Composites, Vol. 41, p.1-8, 2013.
  • F. Ren, J-A. Wang, and W. D. Bertelsen, “Fractographic study of epoxy materials fractured under mode I loading and mixed mode I/III loading”, Materials Science and Engineering A, Vol. 532, p. 449-455, 2012. 
  • A. Q. Morrison, E. D. Case, F. Ren et al. “Elastic Modulus, Biaxial Fracture Strength and Electrical and Thermal Transport Properties of Thermally Fatigued Hot Pressed LAST and LASTT Thermoelectric Materials”, Mater. Chem. Phys. Vol. 134, p. 973-987, 2012.
  • F. Ren, J. Y. Howe, L. Walker, and E. D. Case, “An in-situ SEM experiment to study the thermal stability of LAST (Lead-Antimony-Silver-Tellurium) thermoelectric material”, Philos. Mag. Lett. 91[7]:443-451 (2011).

Research Interest 

  • Development and characterization of materials for energy applications, including
    • Renewable energy and energy efficiency – thermoelectrics, Li-ion batteries, electrical conductors, etc
    • Energy infrastructure materials – ultra high performance concretes, fiber reinforced polymer composites, etc
  • Nanostructural and microstructural investigation using in situ techniques including neutron, x-ray, and electron microscopies
  • Material reliability under extreme conditions – high temperature, high pressure, corrosive environments, etc
  • Material mechanics and mechanical behavior