S.I . Harba I. Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings. J. eng. sustain. dev. [Internet]. 2012 Sep. 1 [cited 2025 Jul. 2];16(3):1-18. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1257