Processing of Data Obtained by the Testing of Steel under Low Cyclic Fatigue (Part I)

Abstract

The design of mechanical components exposed to fatigue load, at a low number of cycles, requires knowledge of the behaviour of the material under the impact of variable load in conditions of controlled strain when cyclic plasticity is present. The aim of testing the quality of the material of the components exposed to low cycle fatigue (LCF) in many industries: nuclear, aerospace, mechanical, civil engineering and shipbuilding. In order to ensure the reliability and consistency of the results from different laboratories, it is necessary to collect all test data using test and data processing methodologies that are in accordance with a number of key points of ISO 12106:2017 and/or ASTM E 606-04 standards. This paper defines a new data processing methodology after the LCF testing of steel.