An Efficient Natural Frequency-Based Method for Crack Identification in Beams. Romanian Journal of Acoustics and Vibration, [S. l.], v. 22, n. 2, p. 204–219, 2025. Disponível em: https://rjav.sra.ro/index.php/rjav/article/view/571.. Acesso em: 16 apr. 2026.