Fractography of fatigue failures

TLDR: In this article, three fields of fractography were examined: microfractography, fatigue crack propagation, and macro fractography, and a list of characteristic features, quantities, and parameters was given and an attempt was made to synthesize concepts for particular fields which have often been studied separately up to the present.

Abstract: 1. Three fields of fractography were examined: microfractography, fatigue crack propagation, and macrofractography. A list of characteristic features, quantities, and parameters was given and an attempt was made to synthesize concepts for particular fields which have often been studied separately up to the present. A characteristic feature of contemporary fractographic analysis is the trend away from a subjective qualitative evaluation to an objective quantitative assessment of fracture characteristics. 2. A contemporary approach was proposed to such a procedure, which is based on black box concepts using simple methods from mathematical statistics.