Issue 60

H. Djeloud et alii, Frattura ed Integrità Strutturale, 60 (2022) 346-362; DOI: 10.3221/IGF-ESIS.60.24

Investigation fatigue crack initiation and propagation cruciform welded joints by extended finite element method (XFEM) and implementation SED approach

Djeloud Hamza, Moussaoui Mustafa Laboratory of Development in Mechanics and Materials (LDMM) - University of Djelfa, (17000) Algeria. hamzadjaloud@gmail.com, http://orcid.org/0000-0002-0726-3466 moussaoui_must@yahoo.fr Kellai Ahmed Research Center in Industrial Technologies, CRTI, P.O. Box 64, Cheraga, 16014 Algiers, Algeria. a.kellai@crti.dz Hachi Dahmane Laboratory of Development in Mechanics and Materials (LDMM) - University of Djelfa, (17000) Algeria. hachi_dahmane@yahoo.fr Filippo Berto Department of Mechanical and Industrial Engineering, NTNU – Norwegian University of Science and Technology, Trondheim, Norway. filippo.berto@ntnu.no, http://orcid.org/0000-0002-4207-0109 Benattou Bouchouicha Laboratory of Materials and Reactive Systems (LMSR), Department of Mechanical Engineering, University of Sidi-Bel-Abbes, Bp 89, cité Ben M'hidisidi- Bel-Abbes 22000-Algeria. benattou.bouchouicha@gmail.com, https://orcid.org/0000-0002-6051-5108 Hachi Brahim Elkhalil Laboratory of Development in Mechanics and Materials (LDMM) - University of Djelfa, (17000) Algeria. br_khalil@yahoo.fr, http://orcid.org/0000-0002-6672-746X

A BSTRACT . This study has used the strain energy density (SED) approach to evaluate the stress intensity factor (SIF) of cracked cruciform welded joints in Hardox 450 steel. A microstructural analysis was made of Hardox 450 steel which is composed of refined and tempered low carbon martensite. The

Citation: Djeloud, H., Moussaoui, M., Kellai, A., Hachi, D., Berto, F., Bouchouicha, B., Hachi, B. E., Investigation fatigue crack

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