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Abstract: This paper proposes the use of the Point Method (PM) to analyse Environmentally Assisted Cracking (EAC) processes in steels containing U-shaped notches. The PM, a methodology included within the Theory of Critical Distances (TCD), has been extensively validated by many authors for the analysis of fracture and fatigue phenomena of different types of materials containing notches. However, it has never been applied to other critical or subcritical cracking processes such as EAC or creep crack propagation. This work provides a PM-based analysis of EAC emanating from notches, which is validated by testing CT notched specimens of X80 and S420 steels subjected to aggressive environments under hydrogen embrittlement conditions. The results reveal that the PM accurately predicts the crack propagation onset condition, as well as the evolution of the materials apparent EAC resistance.
Congress: International Conference on Fracture and Structural Integrity (25th : 2019 : Catania)
Publisher: Elsevier B.V.
Publication date: 09/09/2019
No. of pages: 9
Publication type: Conference object
DOI: 10.1016/j.prostr.2019.08.134
ISSN: 2452-3216
Spanish project: MAT2014-58443-P
Publication Url: https://doi.org/10.1016/j.prostr.2019.08.134
UCrea Repository Read publication
SERGIO CICERO GONZALEZ
PABLO GONZALEZ GUTIERREZ
BORJA ARROYO MARTINEZ
JOSE ALBERTO ALVAREZ LASO
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