Theoretical Determination of Forming Limit Stress Diagram for Steel 1021 Sheet. Tikrit Journal of Engineering Sciences, [S. l.], v. 17, n. 4, p. 56–66, 2010. DOI: 10.25130/tjes.17.4.06. Disponível em: https://tj-es.com/ojs/index.php/tjes/article/view/572.. Acesso em: 9 sep. 2026.