Initiation and growth of fatigue cracks in sheets with U-shaped notches in the first and mixed modes of fracture. JDAF [Internet]. 2024 Mar. 14 [cited 2025 Apr. 24];2(1):11-20. Available from: https://minerva-aset.com/ojs-3.4.0-0/index.php/JDAF/article/view/24