Fractographic reconstitution of fatigue crack history – Part I

Autor: J. Siegl, Jiří Kunz, Ivan Nedbal, Hynek Lauschmann
Rok vydání: 2008
Předmět:
Zdroj: Fatigue & Fracture of Engineering Materials and Structures. 31:164-176
ISSN: 1460-2695
8756-758X
DOI: 10.1111/j.1460-2695.2007.01211.x
Popis: The most valuable quantitative information contained in fatigue fracture surfaces is related to striations. An alternative source of information, in particular if striation identification is impossible, can be the general characteristics of fracture micromorphology evaluated by digital image analysis. For study of micrographs as image textures, new methods called textural fractography have been developed. In this paper, some of these methods and examples of their application are described. A generalization for the case of a variable cycle loading is proposed, based on a new concept of counting loading cycles. The presented work foreshadows the potential contribution of textural fractography for fractographic reconstitution of fatigue crack history.
Databáze: OpenAIRE