Lt Col Ryan Kemnitz, Ph.D.
Deputy Department Head - Associate Professor of Aerospace Engineering
BS, Mechanical Engineering, United Stated Air Force Academy, 2008; MS, Mechanical Engineering, University of Utah, 2012; PhD, Materials Science, Air Force Institute of Technology, 2018.
Major Kemnitz’s research interests include process parameter and laser scanning strategy development for additive manufacturing of metal alloys, mechanical and microstructural characterization of additively manufactured materials. He is a member of Tau Beta Pi and AIAA.
Education
BS, Mechanical Engineering, United Stated Air Force Academy, 2008
MS, Mechanical Engineering, University of Utah, 2012
PhD, Materials Science, Air Force Institute of Technology, 2018
Publications
Shelton, T. E., Willburn, Z. A., Hartsfield, C. R., Cobb, G. R., Cerri, J. T., & Kemnitz, R. A. Effects of thermal process parameters on mechanical interlayer strength for additively manufactured Ultem 9085. Polymer Testing, 81 (2020): 106255.
Singleton, Jacob W., Gregory R. Cobb, Heath E. Misak, and Ryan A. Kemnitz. Quantifying the Electrical Behavior of Carbon Nanotube Sheet Enhanced with Acid Functionalization and Polymer Intercalation Results in Materials (2020): 100059.
Cobb, G. R., O’Hara, R. P., Kemnitz, R. A., Sabelkin, V. P., & Doane, B. M. Quantifying the effects of ultraviolet type C radiation on the mechanical and electrical properties of carbon nanotube sheet for space-based applications. Materials Today Communications, 18 (2019): 7-13.
Sabelkin, V. P., Cobb, G. R., Shelton, T. E., Hartsfield, M. N., Newell, D. J., O’Hara, R. P., & Kemnitz, R. A. Mitigation of anisotropic fatigue in nickel alloy 718 manufactured via selective laser melting. Materials & Design 182 (2019): 108095.
Kemnitz, R. A., Cobb, G. R., Singh, A. K., & Hartsfield, C. R. Characterization of simulated low earth orbit space environment effects on acid-spun carbon nanotube yarns. Materials & Design, 184 (2019): 108178.
Cobb, G.R., O’Hara, R.P., Kemnitz, R.A., Sabelkin, V.P., Doane, B.M., “Quantifying the effects of ultraviolet type C radiation on the mechanical and electrical properties of carbon nanotube sheet for space-based applications,” Materials Today Communications 18, (2019): 7-13.
Sabelkin, V. P., Cobb, G. R., Shelton, T. E., Hartsfield, M. N., Newell, D. J., O’Hara, R. P., & Kemnitz, R. A. Mitigation of Anisotropic Fatigue in Nickel Alloy 718 Manufactured via Selective Laser Melting. Materials & Design (2019): 108095.
Singh, A.K., Cobb, G.R., Kemnitz, R.A., In-situ characterization of bulk carbon nanotube behavior in a sheet under tensile load. Materials Today Communications 17 (2018): 493-500.