Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/71754
Título: | Rate effect in inclined fibre pull-out for smooth and hooked-end fibres: a numerical study |
Autor(es): | Poveda, Elisa Yu, Rena C. Tarifa, Manuel Ruiz, Gonzalo Cunha, Vítor M. C. F. Barros, Joaquim A. O. |
Palavras-chave: | Rate-dependent friction Smooth and hooked-end fibres SFRC Inclination angle Pull-out rate |
Data: | 2020 |
Editora: | Springer |
Revista: | International Journal of Fracture |
Citação: | Poveda, E., Rena, C. Y., Tarifa, M., Ruiz, G., Cunha, V. M., & Barros, J. A. (2020). Rate effect in inclined fibre pull-out for smooth and hooked-end fibres: A numerical study. International Journal of Fracture, 223(1), 135-149 |
Resumo(s): | Based on a numerical model to simulate the static behaviour of a smooth fibre extracted from a cementitious matrix, a rate dependent friction law, widely used in earthquake engineering for steady-state slip phenomena, is proposed to capture the rate effect observed in dynamic pull-out tests for both smooth and hooked-end fibres. After calibrating the friction coefficients with the experimental results of smooth fibres, the model is subsequently applied to predict the pullout behaviour of both smooth and hooked-end fibres at different inclination angles (0∘, 30∘ and 60∘) loaded at three different velocities (0.01, 0.1 and 1 mm/s). The global tendency of all the pull-out curves was captured, fibre’s cross sectional deformations were also reproduced remarkably well. Moreover, the developed model helps to cast light on the different mechanisms related to the pull-out process. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/71754 |
DOI: | 10.1007/s10704-019-00404-7 |
ISSN: | 0376-9429 |
Versão da editora: | https://link.springer.com/article/10.1007/s10704-019-00404-7 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
IJ(ISI)_175.pdf | 2,05 MB | Adobe PDF | Ver/Abrir |