ABDUSHELISHVILI I, LOLADZE T. The Method for Determining Fracture Toughness and Impact Strength of 40АГФТ Steel. JTST [Internet]. 2017 Sep. 15 [cited 2025 Feb. 23];6(1). Available from: https://jtst.ibsu.edu.ge/jms/index.php/jtst/article/view/118