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Ray S. Fertig III

University of Wyoming

Mechanical Engineering

Dept. 3295

1000 E. University

Laramie, WY 82071

Phone: 307.766.3647


Fertig Research Group Banner


Principal Investigator

Prof. Ray S. Fertig III received BS (2001) and MS (2003) degrees in Mechanical Engineering from the University of Wyoming and MS (2005) and PhD (2010) degrees in Materials Science and Engineering from Cornell University. Fertig joined the Mechanical Engineering Department in 2011. He is also a faculty participant in the interdisciplinary Materials Science and Engineering Program.

Graduate Students

Geeta Monpara (PhD), Email:
Geeta is originally from India. She completed her Bachelors and Masters degrees in Metallurgical Engineering and Materials Science from Indian Institute of Technology Bombay. She joined the group in Summer 2014 as a PhD student. Her research work is focused on developing physics-based multiscale models to predict durability in fiber reinforced polymers under combined fatigue and environmental loading. Environmental effects such as moisture absorption can significantly reduce the strength of composite structures. Consequently, the ability to predict these effects is critical for design of robust composite structures.

Faisal Bhuiyan (PhD), Email:
Faisal is from Chittagong, Bangladesh. He has a B.Sc. in Mechanical Engineering from Bangladesh University of Engineering and Technology (BUET) and joined the group in Fall 2014. He is working on the development of a physics-based methodology for reliability prediction of wind turbine blades. The goal of the project is to develop a multiscale physics-based Monte Carlo structural simulation tool for predicting the distribution of failure lifetimes in a wind turbine blade.

Alexander Yannacone (MS), Email:
Alex is from Turbotville, PA. He has a B.S. (2005) in Aeronautical Engineering from Clarkson University in Potsdam, NY and joined the group in Spring 2015. Prior to joining the group he worked as a structures liaison/design engineer at American Airlines in Tulsa, OK and then later at Spirit AeroSystems in Kinston, NC. He is working on enhancing multiscale modeling methods for composites to predict the effects of plasticity in fiber reinforced polymers (e.g. thermoplastics) for more accurate failure prediction.

Kyle Kuhn (MS), Email:
Kyle is from Laramie, Wyoming. He has a B.S. in Mechanical Engineering from the University of Wyoming and joined the group in Summer 2016. His research is focused on optimizing pore morophology in porous ceramics for enhanced compressive strength. He is using adjoint methods to obtain morphological sensitivities for use in gradient-based surface optimization of the pores. This research will be directly used for enhancing the structural stability of catalytic converters and diesel particulate filters.

Shah Rahman (MS), Email:
Shah is from Bangladesh. He has a B.Sc. in Mechanical Engineering from the Bangladesh University of Engineering and Technology (BUET). He joined the group in spring 2018.


Dr. Niranjan Patra (Postdoctoral), Email:
Dr Niranjan Patra is originally from India. He received his PhD in material science from Italian Institute of Technology, Genova and University of Genova, Italy investigating oxide based nanostructures and its applications. He worked with Prof. W.E (Bill) Lee research group at Imperial College London as postdoctoral fellow where he developed preceramics polymer precursor infiltrate carbon fibers ultra-high temperature ceramics composites. At UW he worked on additive manufacturing of high performance silicon carbide microstructures using preceramic polymers. His research interests include processing of materials (Ceramics, polymer, nanostructures), and their applications in aerospace, energy storage, biomedical as sustainable cost effective future technologies.

David Leonhardt (MS), Email:
David is from Thermopolis, Wyoming. He has a B.S. in Mechanical Engineering from the University of Wyoming and joined the group in Summer 2015. His research focused on improving the fatigue life of nonlinear plate springs. His work involved parameterized finite element modeling of the plate geometry, coupled with material characterization. Both the material properties and plate geometry have a significant impact on the actuation force and fatigue life. The end result of this research was a software package enabling more robust nonlinear spring design. David is currently a PhD student at the University of Canterbury in Christchurch, New Zealand.

Hamid Sanei (PhD), Email:
Hamid is from Mashhad, Iran. He earned his bachelor s and master s degrees at Azad and Ferdowsi University of Mashhad, respectively. He started his Ph.D. at University of Wyoming in Spring 2012 and joined the group in Spring 2014. His research focused on the reliability prediction of fiber reinforced polymers. He has worked to correlate the variability in microstructures to scattering of mechanical properties at the macroscale. To that end, he created a microstructural model with multiscale defects and isolated the effect of individual defects to monitor their influence on composite structural reliability. Modeling the real rather than the ideal, and random instead of deterministic microstructures, enables simulation of random failures similar to those observed experimentally. Hamid is currently an Assistant Professor at Penn State University-Behrend College.

Siavash Sarrafan (MS), Email:
Siavash is from Mashhad, Iran. He joined the group in Spring 2013 and graduated in Fall 2015. He has his BS and MS in Mechanical Engineering from Ferdowsi University of Mashhad. His research focused on dislocation dynamics in thin films, specifically on developing a computationally efficient 2.5D methodology for studying methods to tailor dislocation microstructures. This will lead to better understanding and control of dislocations thin films, which promises significantly enhanced mechanical, optical, and electrical properties. Siavash is currently a PhD student at Lousiana State University.

Eric Jensen (MS), Email:
Eric is from Douglas, WY and has a B.S. in Mechanical Engineering from the University of Wyoming. His research focused on the creep and fatigue behavior of fiber reinforced polymers. He extended a physics-based fatigue model to also predict creep behavior of composite laminates. In conjunction with this effort he developed an optical strain measurement system to monitor strain distributions during testing, particularly for long term creep tests. This will allow for future improvements to the creep/fatigue model and permit robust model validation. Eric is currently employed at Allegion.

Kedar Malusare (MS), Email:
Kedar is from Mumbai, India. He has a B.E in Mechanical Engineering from the University of Mumbai and joined the Fertig Group in Fall 2012 and graduated in the Spring of 2014. He investigated the relationship between strain energy and volume average constituent stresses. His research focused on developing computer simulations to study the variation of interaction energy for a variety of different fiber configurations, load states, and constituent properties. This will be used to augment the existing failure theories that use volume average quantities to better predict failure. Kedar is currently employed at Stutzki Engineering

Undergraduate Researchers

  • 2017 - Adrun James
  • 2016 - Mark McKee
  • 2016 - E. John Barsotti
  • 2015 - Kent Scarince
  • 2015 - E. John Barsotti
  • 2015 - Matthew Doherty
  • 2015 - Kyle Kuhn
  • 2015 - Matthew Love
  • 2015 - Nicholas Mavriplis
  • 2014 - David Leonhardt
  • 2014 - Thomas Bilodeau
  • 2014 - Matthew Love
  • 2013 - Dustin Bales
  • 2013 - Abby Huyler
  • 2013 - David Leonhardt
  • 2013 - David Veinbergs

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