Fatigue Life Properties of Stainless Steels in Wide Ranged Biaxial Stress State

Abstract:

Multiaxial fatigue tests consisting of push-pull loading and cyclic inner pressure were carried out using hollow cylinder specimens of type 430 stainless and type 316 stainless steels at room temperature. 7 types of cyclic loading paths were employed by combining axial and hoop stresses: a Pull, an Inner-pressure, a Push-pull, an Equi-biaxial, a Square-shape, a L_T-shape and a L_C-shape. Fatigue lives vary depending on the loading path when those were evaluated by the maximum Mises’ equivalent stress on inner surface of the specimen. The fatigue lives of both the steels showed a similar tendency although some Pull tests take longer fatigue life when cracks initiated from inside surface of the specimen. This study investigated the crack initiation and propagation behaviors as well as the initiation of oil leakage to prove the behavior and discusses life evaluation for two steels under wide ranged biaxial stress state, too.

• Periodical: Key Engineering Materials (Volume 795)
• Pages: 60-65
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.795.60
• Online since: March 2019
• Authors: Shunsuke Saito, Fumio Ogawa, Takamoto Itoh*
• Keywords: Cyclic Inner Pressure, Fatigue, Hollow Cylinder Specimen, Multiaxial Stress, Stainless Steel

References

[1] T. Itoh, Development of internal and external pressure and axial and torsional composite multiaxial fatigue test equipment, Fukui University Japan (2011).

[2] M. Leitner, F. Grun, Z. Tuncali, R. Steiner, and W. Chen, Multiaxial fatigue assessment of crankshafts by local stress and critical plane approach, Fratture ed Integrita Strutturable.388 (2016) 47-53.

DOI: 10.3221/igf-esis.38.06

[3] A. Nitta, T. Ogata, K. Kuwabara, The effect of axial-torsional straining phase on elevated-temperature biaxial low-cycle fatigue life in SUS 304 stainless steel, J. Soc. Mater. Sci. 36 (1989) 376-382.

DOI: 10.2472/jsms.36.376

[4] C.H. Wang, M.W. Brown, A path-independent parameter for fatigue under proportional and non-proportional loading, Fatigue & Fract. Eng. Mater. & Struct. 16 (1993) 1285-1298.

DOI: 10.1111/j.1460-2695.1993.tb00739.x

[5] T. Itoh, T. Nakata, M. Sakane, M.Ohnami, Nonproportional low cycle fatigue of 6061 aluminum alloy under 14 strain paths, Euro. Struct. Integrity Soc. 25 (1999) 41-54.

DOI: 10.1016/s1566-1369(99)80006-5

[6] N. Shamsaei, M. Gladskyi, K. Panasovskyi, S. Shukaev, A.Fatemi, Multiaxial fatigue of titanium including step loading and load path alteration and sequence effects, Int. J. Fatigue 32 (2010) 1862-1874.

DOI: 10.1016/j.ijfatigue.2010.05.006

[7] J. Wiebesiek, K. Störzel, T. Bruder, H. Kaufmann, Multiaxial fatigue behaviour of laserbeam-welded thin steel and aluminium sheets under proportional and non-proportional combined loading, Int. J. Fatigue 33 (2011) 992-1005.

DOI: 10.1016/j.ijfatigue.2010.12.008

[8] A. Bolchoun, J. Wiebesiek, H. Kaufmann, C.M. Sonsino, Application of stress-based multiaxial fatigue criteria for laserbeam-welded thin aluminium joints under proportional and non-proportional variable amplitude loadings, Theor. & App. Fract. Mech. 73 (2014) 9-16.

DOI: 10.1016/j.tafmec.2014.05.009

[9] A. Karolczuk, Analysis of revised fatigue life calculation algorithm under proportional and non-proportional loading with constant amplitude, Int. J. Fatigue 88 (2016) 111-120.

DOI: 10.1016/j.ijfatigue.2016.03.027

[10] X. Chen, Q. Gao, X. Sun, Low-cycle fatigue under non-proportional loading, Fatigue & Fract. Eng. Mater. & Struct. 19 (1996) 839-854.

DOI: 10.1111/j.1460-2695.1996.tb01020.x

[11] A. Fatemi, D.F. Socie, A critical plane approach to multiaxial fatigue damage including out-of-phase loading, Fatigue & Fract. Eng. Mater. & Struct. 11 (1988) 149-165.

DOI: 10.1111/j.1460-2695.1988.tb01169.x