This research examines the capability of a lately developed energy-based fatigue damage parameter to assess fatigue life of various metallic materials subjected to proportional and non-proportional loading conditions. The proposed damage is defined based on (i) shear and axial stress and strain components responsible for cracking/ modes of failure dominantly Case A and Case B, (ii) energy-based fatigue coefficients analogous to Coffin-Manson's coefficients, (iii) corresponding fatigue lives of components failed under axial and torsional loading conditions, and (iv) total elastic-plastic energy calculated from stress-strain hysteresis loops.
References:
- Jahed H, Albinmousa, J, "Multiaxial Behaviour of Wrought Magnesium Alloys–A Review and Suitability of Energy-Based Fatigue Life Model," Theoretical and Applied Fracture Mechanics, 73 (2014) 97–108
-
Noban M, Jahed H, Varvani A, “The choice of cyclic plasticity models in fatigue life assessment of 304 and 1045 steel alloys based on the critical plane-energy fatigue damage approach,” International Journal of Fatigue, 43 (2012) 217–225;
-
Noban M, Jahed H, Ibrahim E, Ince A, “Load path sensitivity and fatigue life estimation of 30CrNiMo8HH,” International Journal of Fatigue, 37, (2012), Pages 123-133;
-
Noban, M., Jahed, H., Winkler, S., Ince, A., “Fatigue characterization and modeling of 30CrNiMo8HH under multiaxial loading,” Materials Science and Engineering A 528 (6), (2011), 2484-2494;
-
Jahed H, Noban M, " Fatigue of Electroformed Nickel ", Journal of Failure Analysis and Prevention, J (2009) 9:549–557
- Jahed H, Varvani-Farahani A, "Upper and lower fatigue limits calculation using energy- based fatigue properties", Int Jnl Fatigue 2006;28:467-473
- Jahed H, Varvani A, Noban M and Khalaji I, "An energy-based fatigue life assessment model for various metallic materials under proportional and non-proportional loading conditions", Int Jnl Fatigue 2007;29:647-655