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https://hdl.handle.net/10316/101066
Title: | Single overloads FCG modeling considering damage accumulation | Authors: | Sérgio, E. R. Borges, M. F. M. Neto, D. M. Antunes, F. V. Pais, J. P. |
Issue Date: | 2021 | Project: | PTDC/EME-EME/31657/2017 CENTRO-01-0145-FEDER-031657 MATIS (CENTRO-01-0145-FEDER-000014) UIDB/00285/2020 |
Serial title, monograph or event: | Procedia Structural Integrity | Volume: | 33 | Abstract: | In this study, Fatigue Crack Growth (FCG) in a CT specimen, submitted to single overloads, is predicted by a node release numerical model, which considers the plastic strain to be the main FCG driving force. The Gauss-Tvergaard-Needleman (GTN) damage model was implemented to account for the, inevitable, growth and nucleation of microvoids in the occurrence of high levels of plastic strain. Crack closure shown to be a crucial mechanism influencing the differences between both models, as well as it explains the effects of the overloads on the FCG rate. | URI: | https://hdl.handle.net/10316/101066 | ISSN: | 24523216 | DOI: | 10.1016/j.prostr.2021.10.113 | Rights: | openAccess |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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