EVALUATION OF SPECIFIC METHODS TO DETECT CRACK AND DAMAGE OF MECHANICAL BEAM STRUCTURES USING FREE VIBRATION ANALYSIS. مجلة الهندسة, [S. l.], v. 15, n. 04, p. 4258–4279, 2024. DOI: 10.31026/j.eng.2009.04.11. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/3161.. Acesso em: 17 2024.