Advanced Materials and Mechanics Laboratory

Jason Geathers

Jason Geathers' Curriculum Vitae

Education

  • PhD candidate, Mechanical Engineering
  • M.S.E., Mechanical Engineering (Concentration: Mechanics and Materials), 2012 University of Michigan
  • B.S., Mechanical Engineering, 2009 University of Michigan
  • B.S., Applied Physics, 2009 Morehouse College

Research Interests

My research interests focus on the mechanics of materials and material behavior. Thus, I have decided to pursue my graduate studies in the mechanical engineering department, while also working with the material science engineering department. My current research focuses on the small-scale examination of deformation mechanisms active in structural materials during very high cycle fatigue. The experiments utilize a novel approach combining portable ultrasonic fatigue at 20 kHz, scanning electron microscopy, electron backscatter diffraction, and optical metrologies for deformation tracking. The use of ultrasonic fatigue enables us to conduct fatigue tests at lifetimes of more than 10^8 cycles in a matter of days, rather than years as required for more conventional methods.

Awards

  • Society for Engineering Science (SES), Student Competition - 1st Place, 2014.
  • Society for Experimental Mechanics (SEM), Student Competition - 1st Place, 2014
  • U-M Engineering Graduate Symposium, Mechanics of Materials & Structures Division - 2nd Place, 2013.
  • Rackham Merit Fellowship, 2010-2012
  • NSF Graduate Fellowship Honorable Mention, 2010
  • School of Engineering Merit Scholarship, University of Michigan 2007-2009

Teaching and Mentoring Experience

  • ME599 (Experimental Methods in Solids), Guest Lecturer, 2013
  • ME382 (Mechanics of Materials), Guest Lecturer, 2012
  • Mentor to Undergraduate Research Assistants (UROP), 2010-2012

Journal Publications

  • J. Geathers, C.J. Torbet, J.W. Jones, S. Daly. Investigating Environmental Effects on Small Fatigue Crack Growth in Ti-6242S Using Combined Ultrasonic Fatigue and Scanning Electron Microscopy. International Journal of Fatigue, Accepted, 2014. (PDF file to come)