| Title: | Experimental characterization and phase-field damage modeling of ductile fracture in AISI 316l |
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| Authors: | ID Dunić, Vladimir (Author)
ID Gubeljak, Nenad (Author)
ID Živković, Miroslav (Author)
ID Milovanović, Vladimir (Author)
ID Jagarinec, Darko (Author)
ID Djordjevic, Nenad (Author) |
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| Files: |  metals-14-00787.pdf (3,84 MB)
MD5: 2A4AF225145F064478B5B6FC2BD35DF4
 https://www.mdpi.com/2075-4701/14/7/787
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | ) 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. |
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| Keywords: | phase-field damage modeling, ductile fracture, crack-tip opening displacement, crack growth, resistance curve, finite element method, simulations |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 01.07.2024 |
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| Article acceptance date: | 02.07.2024 |
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| Publication date: | 05.07.2024 |
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| Publisher: | MDPI |
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| Year of publishing: | 2024 |
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| Number of pages: | 17 str. |
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| Numbering: | Vol. 14, iss. 7, [article no.] 787 |
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| PID: | 20.500.12556/DKUM-90747  |
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| UDC: | 639.3:004.94 |
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| ISSN on article: | 2075-4701 |
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| COBISS.SI-ID: | 207662083 |
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| DOI: | 10.3390/met14070787 |
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| Publication date in DKUM: | 19.09.2024 |
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| Views: | 0 |
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| Downloads: | 14 |
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| Metadata: |    |
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| Categories: | Misc.
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