Material fatigue properties obtained on unnotched specimens were discussed in the previous chapter. However, an engineering structure is not an unnotched specimen. On the contrary, various “notched” elements can always be indicated in a structure. Fatigue tests on notched specimens are necessary for two major purposes:
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(1)
To arrive at prediction methods for fatigue properties of structural elements.
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(2)
To carry out comparative fatigue tests to explore effects of different variables.
The first topic is covered in the present chapter, while the second topic is addressed in Chapter 13.
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References
Peterson, R.E., Stress Concentration Factors. John Wiley & Sons, New York (1974).
Neuber, H., Kerbspannungslehre. Springer, Berlin (1937) (2nd edn., 1958). Translation: Theory of Notch Stresses. J.W. Edwards, Ann Arbor, Michigan (1946).
Kuhn, P. and Hardrath, H.F., An engineering method for estimating notch-size effect in fatigue tests of steel. Report NACA TN 2805 (1952).
Siebel, E. and Stieler, M., Significance of dissimilar stress distributions for cyclic loading. Zeitschr. VDI, Vol. 97 (1955), pp. 146–148 [in German].
Phillips, C.E. and Heywood, R.B., Size effect in fatigue of plain and notched steel specimens. Proc. Inst. Mech. Engrs., Vol. 165 (1951), pp. 113–124.
Landers, C.B. and Hardrath, H.F., Results of axial-load fatigue tests on electropolished 2024-T3 and 7075-T6 aluminum-alloy-sheet specimens with central holes. Report NACA TN 3631 (1956).
Grover, H.J., Bishop, S.M. and Jackson, L.R., Fatigue strengths of aircraft materials. Axial load fatigue tests on notched sheet specimens of 24S-T3 and 75S-T6 alumimum alloys and of SAE 4130 steel. Report NACA TN 2324 (1951).
Grover, H.J., Bishop, S.M. and Jackson, L.R., Fatigue strengths of aircraft materials. Axial load fatigue tests on notched sheet specimens of 24S-T3 and 75S-T6 alumimum alloys and of SAE 4130 steel with stress-concentration factors of 2.0 and 4.0. Report NACA TN 2389 (1951).
Dang-Van, K., Macro-micro approach in high-cycle mutiaxial fatigue. Advances in multiaxial fatigue. ASTM STP 1191, McDoell, D.L. and Ellis, R. (Eds.) (1993), pp. 120–130.
Juvinall, R.C., Engineering Considerations of Stress, Strain and Strength. McGraw-Hill, New York (1967).
Some general references
SAE Fatigue Design Handbook, 3rd edn. AE-22, Society of Automotive Engineers, Warrendale (1997).
Fatigue Data Book: Light Structural Alloys. ASM International (1995).
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(2009). The Fatigue Strength of Notched Specimens. In: Schijve, J. (eds) Fatigue of Structures and Materials. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6808-9_7
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