“Numerical Investigation on Stress Intensity Factor and J Integral in Friction Stir Welded Joint through XFEM Method”. Frattura ed Integrità Strutturale 13, no. 47 (December 1, 2018): 54–64. Accessed November 12, 2024. https://ww3.fracturae.com/index.php/fis/article/view/2211.