20.500.12556/DKUM-90747 Experimental characterization and phase-field damage modeling of ductile fracture in AISI 316l ) Modeling and characterization of ductile fracture in metals is still a challenging task in the field of computational mechanics. Experimental testing offers specific responses in the form of crack-mouth (CMOD) and crack-tip (CTOD) opening displacement related to applied force or crack growth. The main aim of this paper is to develop a phase-field-based Finite Element Method (FEM) implementation for modeling of ductile fracture in stainless steel. (2) A Phase-Field Damage Model (PFDM) was coupled with von Mises plasticity and a work-densities-based criterion was employed, with a threshold to propose a new relationship between critical fracture energy and critical total strain value. In addition, the threshold value of potential internal energy—which controls damage evolution—is defined from the critical fracture energy. (3) The material properties of AISI 316L steel are determined by a uniaxial tensile test and the Compact Tension (CT) specimen crack growth test. The PFDM model is validated against the experimental results obtained in the fracture toughness characterization test, with the simulation results being within 8% of the experimental measurements. phase-field damage modeling ductile fracture crack-tip opening displacement crack growth resistance curve finite element method simulations modeliranje poškodb faznega polja duktilni lom trdnost materiala trdnost zvarnih spojev rast razpoke krivulja upora metoda končnih elementov simulacije true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/2075-4701/14/7/787 Članek v reviji 2024-09-19 11:07:21 2024-09-19 11:07:21 2024-09-20 03:14:10 0000-00-00 00:00:00 2024 0 0 17 str. iss. 7, [article no.] 787 Vol. 14 July 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2024-07-01 2024-07-02 2024-07-05 639.3:004.94 207662083 10.3390/met14070787 2075-4701 metals-14-00787.pdf metals-14-00787.pdf 1 2A4AF225145F064478B5B6FC2BD35DF4 228d1a38c20957e7581e466b3ba090507e98e867833619a5d6e264b14f5973c5 dfd13326-7666-11ef-aec7-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=185461 https://www.mdpi.com/2075-4701/14/7/787 0 e793bf84-7666-11ef-aec7-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=185462 Fakulteta za strojništvo 0 0 0