01663nas a2200181   4500000000100000000000100001008004100002260007700043100001900120700001700139700001800156700002000174700001800194700002000212245007100232856005600303520112200359       2025                            d  c09.2025bWrocław University of Science and TechnologyaWrocław, Poland1 aWojciech Macek1 aMariusz Deja1 aDariusz Pojda1 aMateusz Korpyś1 aCho-Pei Jiang1 aGrzegorz Lesiuk00aQuantitative Techniques for Assessing Fatigue Damage After Failure  uhttps://iras2025.pwr.edu.pl/publication/macek-2025/3 a<p>A significant quantity of the fatigue life studies and a considerable number of fracture investigations have been carried out to measure changes associated with the damage process. However, there are cur-rently no set rules for the fractographical assessment of fatigue damage, and efforts are being made to find suitable techniques or alter current ones. Consequently, this study looks at two efficient post-failure techniques for identifying and quantifying damage. Fracture surface topography analysis, or FRASTA, has been used to solve a variety of failure problems. This quantified fractographic approach was first used in the early 1980s and has since been improved upon in tandem with developments in computing and measurement methods. To understand the behavior of a material under stress, especially in fatigue scenarios, the second methodology is known as the "entire fracture surface method" in mate-rial science. This method involves analyzing the entire surface of a fracture, or the broken surface pa-rameters. This approach aids in forecasting fatigue life and comprehending fatigue phenomena.</p>