Functional Relationships between Fatigue Data
Most PM components are exposed to cyclic loading over long periods of time, and the endurable stress amplitude is an important factor considered in many applications. With the continuously growing volume of experimental test results, functional relationships can be derived which permit predictions on the effects of density ρ, external notches characterized by a stress concentration factor Kt, and static mean stresses σm for standardized test specimen geometries.
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
P. Beiss "Functional Relationships between Fatigue Data", Materials Science Forum, Vols. 534-536, pp. 681-684, 2007