“STRENGTH-CYCLE CURVES FOR MULTI-AXIAL FATIGUE OF POLYESTER REINFORCED BY GLASS FIBER”, J. eng. sustain. dev., vol. 20, no. 2, pp. 239–249, Mar. 2016, Accessed: May 18, 2024. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/679