PSI - Issue 66
Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2025) 000–000 ScienceDirect Structural Integrity Procedia 00 (2025) 000–000
www.elsevier.com/locate/procedia
www.elsevier.com/locate/procedia
ScienceDirect
Procedia Structural Integrity 66 (2024) 296–304 8th International Conference on Crack Paths Methodological advances in fatigue crack growth modeling Alfonso Fernández-Canteli a , Diego Díaz-Salamanca* a , Enrique Castillo b , Sergio Blasón c , Miguel Muñiz-Calvente a University of Oviedo, EPI, Campus de Viesques, 33203 Gijón, Spain Abstract A conceptually novel unitary methodology for the analysis of the fatigue crack growth phenomenon is proposed as a phenomenological approach. As a first step, the analytical expression of the curve is found from the monitored partial data using the REX (retro-extrapolation) model. Following, the analytical expressions of the / and are obtained as a function of the crack length, . Finally, the analytical relation between the precedent variables is defined assuming a Gumbel cumulative distribution function for maxima. In this way, the basis for a complete probabilistic definition of the / − field is paved. The procedure allows a continuous comparative tracking to be achieved at each step of the procedure between the data from the experimental results and the extrapolated solutions emanated from the analytical model proposed. The presumption of the crack phenomenon as a Markovian damage process justifies the definition of the complete curves assuming from the forward and backward extrapolation of the collected experimental data collected. The application to experimental crack growth confirms the validity of the model. 8th International Conference on Crack Paths Methodological advances in fatigue crack growth modeling Alfonso Fernández-Canteli a , Diego Díaz-Salamanca* a , Enrique Castillo b , Sergio Blasón c , Miguel Muñiz-Calvente a University of Oviedo, EPI, Campus de Viesques, 33203 Gijón, Spain b Spanish Royal Academy of Engineering, Spanish Royal Academy of Sciences, Don Pedro 10, 28005 Madrid, Spain c Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany Abstract A conceptually novel unitary methodology for the analysis of the fatigue crack growth phenomenon is proposed as a phenomenological approach. As a first step, the analytical expression of the curve is found from the monitored partial data using the REX (retro-extrapolation) model. Following, the analytical expressions of the / and are obtained as a function of the crack length, . Finally, the analytical relation between the precedent variables is defined assuming a Gumbel cumulative distribution function for maxima. In this way, the basis for a complete probabilistic definition of the / − field is paved. The procedure allows a continuous comparative tracking to be achieved at each step of the procedure between the data from the experimental results and the extrapolated solutions emanated from the analytical model proposed. The presumption of the crack phenomenon as a Markovian damage process justifies the definition of the complete curves assuming from the forward and backward extrapolation of the collected experimental data collected. The application to experimental crack growth confirms the validity of the model. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2024 Organizers b Spanish Royal Academy of Engineering, Spanish Royal Academy of Sciences, Don Pedro 10, 28005 Madrid, Spain c Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2024 Organizers © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2024 Organizers Keywords: analytical fatigue crack growth curve; REX model; fatigue crack growth rate curve; extreme value functions; analytical derivation.
* Corresponding author. Tel.: +34 985 18 64 08. E-mail address: diazsdiego@uniovi.es
Keywords: analytical fatigue crack growth curve; REX model; fatigue crack growth rate curve; extreme value functions; analytical derivation.
2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2024 Organizers 2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2024 Organizers * Corresponding author. Tel.: +34 985 18 64 08. E-mail address: diazsdiego@uniovi.es
2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2024 Organizers 10.1016/j.prostr.2024.11.079
Made with FlippingBook Ebook Creator