journal article·2011-10

A model of crack opening stresses in variable amplitude loading using smooth specimen fatigue test data for three steels

M. El-Zeghayar, T.H. Topper, K.A. Soudki

International Journal of Fatigue· Volume 33· Issue 10
Publisher page

Abstract

Crack growth under variable amplitude loading can be largely explained through changes in fatigue crack closure and crack opening stress. This paper presents a methodology for modeling changes in crack opening stress level and fatigue damage using data derived from periodic underload fatigue tests of smooth specimens for three steels with diverse hardness (soft, medium, and hard). The predicted crack closure stress levels are modeled under constant and variable amplitude loading (SAE Log Skidder History) and agree well with experimental measurements made with a high magnification microscope.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Fatigue and fracture mechanics · Ultrasonics and Acoustic Wave Propagation · Non-Destructive Testing Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (17)

Show source-provided references
1. Proceedings of the FAA-NASA symposium on the continued airworthiness of aircraft structures, FAA Center of Excellence in Computational Modeling of Aircraft Structures, Atlanta, Georgia; 1997.
2. A study of the effect of mechanical variables on fatigue crack closure and propagation10.1016/0142-1123(86)90004-6 ↗
3. McEvily AJ, Minikawa K. Fatigue crack growth threshold concepts. In: TMS AIME. Warrendale (PA, USA); 1984. p. 517.
4. A crack opening stress equation for fatigue crack growth10.1007/BF00020751 ↗
5. The effective stress range as a mean stress parameter10.1016/0142-1123(92)90153-4 ↗
6. Schijve J. Fatigue crack propagation in light alloy sheet material and structures. National Aerospace Laboratory, Amsterdam, report MP-195; 1960.
7. Hudson CM, Hardrath HF. Effects of changing stress amplitude on the rate of fatigue crack propagation in two aluminum alloys. NASA, TN-D-960; 1961.
8. Yu MT, Topper TH, Au P. The effects of stress ratio, compressive loads and underloads on the threshold behavior of a 2024-t351 aluminum alloy. In: Proceedings of the 2nd international conference on fatigue and fatigue thresholds. Birmingham (UK); 1984. p. 170–90.
9. Closure-free biaxial fatigue crack growth rate and life prediction under various biaxiality ratios in SAE 1045 steel10.1046/j.1460-2695.1999.t01-1-00189.x ↗
10. Dabayeh A. Changes in crack opening stress after overloads in 2024-T351 aluminum alloys, M.A.Sc. thesis, University of Waterloo, Waterloo, ON, Canada; 1994.10.1016/0142-1123(95)00010-Q ↗
11. Prediction and correlation of the average crack-opening stress with service load cycles10.1016/S0142-1123(02)00076-2 ↗
12. The consequences of short crack closure on fatigue crack growth under variable amplitude loading10.1111/j.1460-2695.1991.tb00654.x ↗
13. Prediction of crack opening stress levels for 1045 steel under service loading spectrum10.1016/S0142-1123(02)00072-5 ↗
14. Effective strain-fatigue life data for variable amplitude loading10.1016/S0142-1123(97)00013-3 ↗
15. Topper TH, DuQuesnay DL, Pompetzki MA, Jurcevic RA. A crack closure based model for mean stress and overload effects on fatigue damage. In: International symposium on fatigue damage measurement and evaluation under complex loadings. Fukuoka, Japan; 1991.
16. Changes in crack opening stress after underloads in 2024-T351 aluminum alloy10.1016/0142-1123(95)00010-Q ↗
17. Craig McClung R, Sehitoglu Huseyin. Closure behavior of small cracks under high strain fatigue histories. In: Newman JC, Elber Wolf, editors. Mechanics of fatigue crack closure, ASTM STP 982. Philadelphia (PA, USA): American Society for Testing and Materials; 1988. p. 279–99.10.1520/STP27216S ↗