Alshamma, Fathi, and Bassam Ahmed. “Strain Analysis of Surface Cracked Thin Flat Plate under Cycling Impact Loading Effect”. Journal of Engineering 21, no. 4 (December 1, 2015): 138-157. Accessed November 29, 2019. http://joe.uobaghdad.edu.iq/index.php/main/article/view/447.