Ralph I. Stephens
Joined the College of Engineering: 1965
Selected Publications:
Stephens, R.I., Fatemi, A., Stephens, R.R. and Fuchs, H.O., Metal Fatigue in Engineering, 2nd edition, Wiley Interscience, New York, 2000, (455 pages).
Pals, T.J. and Stephens, R.I., "The Influence of High R Ration on Mild and Sharp Notched and Unnotched Fatigue Behavior of 1045 Steel with Three Different Heat Treatments," International Journal of Fatigue, Vol. 26, pp. 651-661, 2004.
Sigl, K.M., Hardin, R.A., Stephens, R.I., and Beckermann, C., "Fatigue of 8630 Cast Steel in Presence of Porosity," International Journal of Cast Metals Research, Vol. 17, No. 3, pp. 130-146, 2004.
Stephens, R.I., Bradley, N.J., Horn, J.J., Gradman, J.M., Arkema, J.M., and Borgwadt, C.S., " Fatigue of High Strength bolts Rolled Before or After heat Treatment with Five Different Preload Levels," SAE publication, 2005.
Vo, L.D. and Stephens, R.I., "Effect of Shot and Laser-Peening on SAE 1010 Steel Tubes with Transverse Center Weld Subjected to Constant and Variable Amplitude Loading." ICF 12 Proceedings Ottawa, Canada, July 2009.
Active Scientific and Professional Society Memberships:
- Sigma Xi
- Pi Tau Sigma
- American Society of Testing and Materials, E08 on Fatigue and Fracture
- Society of Automotive Engineers Fatigue Design and Evaluation
- Registered Professional Engineer, State of Iowa
Special Fields of Knowledge:
- Fatigue
- fracture mechanics
- product liability