A Determination of fracture toughness in plain concrete specimens by R curve. Frattura ed Integrità Strutturale, [S. l.], v. 13, n. 49, p. 763–774, 2019. DOI: 10.3221/IGF-ESIS.49.68. Disponível em: https://ww3.fracturae.com/index.php/fis/article/view/2518. Acesso em: 12 nov. 2024.