STUDY THE BEHAVIOR OF ELASTIC MODULUS FOR ZIGZAG AND ARMCHAIR SINGLE WALL CARBON NANOTUBE STRUCTURE WITH FEM. J. eng. sustain. dev. [Internet]. 2021 Jul. 1 [cited 2024 Jul. 4];25(4):114-25. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/51