Investigation of Double Notch Influence on Crack Propagation in S355 Steel: Experimental and Numerical StudyAbdelilah Hachim, Rabiaa Elkori, Khalid El Had, Hassan Mabchour, Sara Sandabad, Nadia Mouhib, Amal Lamarti and Jamila BouchglE3S Web Conf., 680 (2025) 00028DOI: https://doi.org/10.1051/e3sconf/202568000028