A successful combination of the equivalent material concept and the averaged strain energy density criterion for predicting crack initiation from blunt V-notches in ductile aluminum plates under mixed mode loading
- Autores: Torabi A.1, Campagnolo A.2, Berto F.3,4
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Afiliações:
- Fracture Research Laboratory, Faculty of New Sciences & Technologies
- Department of Industrial Engineering
- Department of Management and Engineering
- Department of Engineering Design and Materials
- Edição: Volume 19, Nº 4 (2016)
- Páginas: 382-391
- Seção: Article
- URL: https://journals.rcsi.science/1029-9599/article/view/191279
- DOI: https://doi.org/10.1134/S1029959916040056
- ID: 191279
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Resumo
Crack initiation from blunt V-notch borders in ductile A16061-T6 plates is investigated experimentally and theoretically under mixed mode I/II loading. Experimental observations with naked eye during loading indicated large plastic deformations around the notch tip at the onset of crack initiation, demonstrating large-scale yielding failure regime for the aluminum plates. To theoretically predict the experimentally obtained value of the maximum load that each plate could sustain, i.e. the load-carrying capacity, without performing elastic-plastic failure analyses, the equivalent material concept (EMC) is combined with a well-known brittle fracture criterion, namely the averaged strain energy density (ASED) criterion. It is shown that the combined EMC-ASED criterion could successfully predict the experimental results for various V-notch angles and radii.
Sobre autores
A. Torabi
Fracture Research Laboratory, Faculty of New Sciences & Technologies
Autor responsável pela correspondência
Email: a_torabi@ut.ac.ir
Irã, Tehran, 14395-1561
A. Campagnolo
Department of Industrial Engineering
Email: a_torabi@ut.ac.ir
Itália, Padova, 35131
F. Berto
Department of Management and Engineering; Department of Engineering Design and Materials
Email: a_torabi@ut.ac.ir
Itália, Vicenza, 36100; Trondheim, 7491