Multiaxial fatigue life assessment of sintered porous iron under proportional and non-proportional loadings
Source abstract
Abstract
Abstract Sintered metals are increasingly applied to high performance mechanical parts with limited fatigue life in the automobile industry. The present work focus on quantifying the multiaxial cyclic deformation and fatigue behavior of sintered metals under multiaxial loading conditions. The fatigue experiment includes 40 specimens under 7 strain-controlled proportional and non-proportional loadings. The cyclic deformation behavior under various loading conditions are investigated for sintered iron with density 7.2 g/cm3. The multiaxial fatigue life of the sintered metals is evaluated based on three multiaxial fatigue criteria, Smith-Watson-Tropper (SWT) criterion, the virtual strain energy criterion and the modified SWT criterion. Based on the statistic analysis of the prediction error, it is shown that the modified SWT model provides satisfactory fatigue life predictions under proportional and non-proportional loading paths. Furthermore, the cracking behavior of sintered metal is assessed with the critical plane models and discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Powder Metallurgy Techniques and Materials · Metal Forming Simulation Techniques · Fatigue and fracture mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. Design methods for reliable fatigue assessment of PM components10.1002/mawe.201100869 ↗
2. Beiss · 2013
3. Understanding competing fatigue mechanisms in powder metallurgy Ti-6Al-4V alloy: role of crack initiation and duality of fatigue response10.1016/j.msea.2015.02.028 ↗
4. Charaterization of fatigue properties of powder metallurgy titanium alloy10.1016/j.msea.2015.12.058 ↗
5. A critical planestrain energy density criterion for multiaxial lowcycle fatigue life under nonproportional loading10.1046/j.1460-2695.1999.t01-1-00199.x ↗
6. Fracture crack growth behavior of hybrid and prealloyed sintered steels Part II: Fatigue behavior10.1016/j.ijfatigue.2005.06.041 ↗
7. Multiaxial fatigue: an overview and some approximation models for life estimation10.1016/j.ijfatigue.2011.01.003 ↗
8. A numerical approach for high-cycle fatigue life prediction with multiaxial loading10.1520/STP13502S ↗
9. Innovative computational modeling of multiaxial fatigue analysis for notched components10.1016/j.ijfatigue.2015.03.019 ↗
10. Jiang · 1992
11. Nonproportional cyclic deformation: critical experiments and analytical modeling10.1016/S0749-6419(97)00030-2 ↗
12. Microcrack nucleation, growth, coalescence and propagation in the fatigue failure of a powder metallurgy steel10.1111/j.1460-2695.2009.01328.x ↗
13. A synthetic haigh diagram for sintered structural steels
14. Application of the strain energy density parameter for estimation of multiaxial fatigue life of sintered steels with stress conentrators
15. Comparative study of multiaxial fatigue damage models for ductile structural steels and brittle materials10.1016/j.ijfatigue.2009.01.006 ↗
16. Strain–based multiaxial fatigue damage modelling10.1111/j.1460-2695.2005.00957.x ↗
17. Damage evolution and modeling of sintered metals under multi-axial loading conditions10.1016/j.commatsci.2013.05.040 ↗
18. Computational investigation of multi-axial damage modeling for porous sintered metals with experimental verification10.1016/j.engfracmech.2015.09.049 ↗
19. A continuum damage model for multi-axial low cycle fatigue of porous sintered metals based on the critical plane concept10.1016/j.mechmat.2016.09.013 ↗
20. Study of the effect of microstructure heterogeneity on fatigue crack propagation of low-alloyed PM steels10.1016/j.msea.2016.05.025 ↗
21. Load path sensitivity and fatigue life estimation of 30CrNiMo8HH10.1016/j.ijfatigue.2011.10.009 ↗
22. Interaction of plastic zone, pores, and stress ratio with fatigue crack growth of sintered stainless steel
23. Multiaxial cyclic deformation and non-proportional hardening employing discriminating load paths10.1016/j.ijplas.2010.02.006 ↗
24. Experimental and computational investigation of cyclic mechanical behavior and damage evolution of distaloyae + 0.5% c
25. Experimental and computational investigation of cyclic mechanical behavior of sintered iron10.1016/j.commatsci.2011.07.050 ↗
26. A stress-strain function for the fatigue of metals
27. Multiaxial fatigue damage models10.1115/1.3225980 ↗
28. Multiaxial fatigue behaviour of sintered steels under combined in and out of phase bending and torsion10.1002/mawe.19870180506 ↗
29. Fatigue design principles for sintered steel components10.1243/03093247JSA174 ↗
30. Zukunftsperspektiven für die pulvermetallurgie durch die betriebsfestigkeit10.1002/mawe.200500944 ↗
31. Fatigue and fracture parameters of diffusion alloyed Cu-Ni-Mo sintered steel10.1016/j.engfracmech.2015.12.011 ↗
32. Deformations and damage to metallic materials under multiaxial non-proportional loading10.1016/j.commatsci.2009.01.022 ↗
33. Effect of density and pore morphology on fatigue properties of sintered Ti6Al4V10.1016/j.ijfatigue.2013.05.015 ↗
34. Multiaxial fatigue of extruded AZ61A magnesium alloy10.1016/j.ijfatigue.2010.09.020 ↗
35. Effect of tensile mean stresses on fatigue strength of fe-cu-c steels in as-sintered and heat treated conditions
36. Fatigue of 7075-T651 aluminum alloy10.1016/j.ijfatigue.2007.07.005 ↗