Journal of Materials Engineering and Performance

, Volume 26, Issue 4, pp 1569–1580 | Cite as

New Correlations Between Monotonic and Cyclic Properties of Metallic Materials



Knowledge of the cyclic properties of metallic materials is often critical to correctly design structural components. However, cyclic data are not easily available in the literature, while tensile test data are easier to find in specialized sites or vendor catalogs. In this study, the cyclic strength coefficient and the cyclic strain hardening exponent of the Ramberg–Osgood law were evaluated using exclusively data obtained through monotonic tensile tests. The analyses were carried out on a large set of materials. The database used is composed of 338 alloys, mainly iron alloys, but also titanium and aluminum alloys. New subdivisions of the materials were introduced. Several original relations were suggested to correlate static and cyclic strength parameters. The evaluated values of both cyclic strength coefficient and cyclic strain hardening exponent were compared with experimental values coming from cyclic test, obtaining a satisfactory agreement and a higher accuracy if compared with similar relations found in the literature.


cyclic strain hardening exponent cyclic strength coefficient cyclic stress–train curve mechanical characterization monotonic properties theoretical estimation 



Modulus of elasticity


Cyclic strength coefficient


Coefficient of determination


Ultimate tensile strength


Monotonic yield stress

a, b, c

Numerical constant/coefficient


Monotonic strain hardening exponent


Cyclic strain hardening exponent


Strain range


Stress range


New fracture-ductility parameter


True fracture ductility


True fracture strength


Reduction in area


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Copyright information

© ASM International 2017

Authors and Affiliations

  1. 1.Department of Industrial EngineeringUniversity of FlorenceFlorenceItaly

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