HARSHAL ANANT PATIL; PUSPENDRA UPADHYAY. INFLUENCE OF DEFECTS ON FATIGUE LIFE OF HELICAL COIL SPRING. International Journal of Innovations in Engineering Research and Technology, Maharashatra, India, p. 1–6, 2021. Disponível em: https://repo.ijiert.org/index.php/ijiert/article/view/1960. Acesso em: 1 aug. 2025.