Stress-strain distribution and failure mechanisms in dual-phase steels investigated with microstructure-based modeling

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dc.authoridTopilla, Labinot/0000-0003-2760-0834
dc.authoridToros, Serkan/0000-0003-0438-2862
dc.contributor.authorTopilla, Labinot
dc.contributor.authorToros, Serkan
dc.date.accessioned2024-11-07T13:24:35Z
dc.date.available2024-11-07T13:24:35Z
dc.date.issued2022
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractIn this study, the microstructural-based finite element modeling of dual-phase steels was investigated to visualize the crack initiation and its propagation through the phases that exist in the material. The parameters of various failure models, including Gurson, Gurson-Johnson-Cook, and Johnson-Cook (JC), were calibrated for different microstructure levels of DP600, DP800, and DP1000 steels. The onset of cracking, nucleation, void growth, and coalescence was determined using the models. As a result of the optimization studies, there is not much difference between the flow curves of the materials and the tensile values calculated from the tensile tests for DP600 and DP800, while it is slightly higher for DP1000. However, considering the fracture, martensite phases were found to be the main determinant of this situation. Cracks that start in the martensite phases then propagate through the ferrite phase and eventually cause the material to break. According to the results of the simulations, the difference between the experiments and the simulation results of the Gurson is 3.33%, the Gurson-JC is 1.82%, and the JC model is 2.39%.
dc.identifier.doi10.1590/1679-78257157
dc.identifier.issn1679-7825
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85144536890
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1590/1679-78257157
dc.identifier.urihttps://hdl.handle.net/11480/14192
dc.identifier.volume19
dc.identifier.wosWOS:000935544200001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherLatin Amer J Solids Structures
dc.relation.ispartofLatin American Journal of Solids and Structures
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectDP steels
dc.subject2D Microstructure
dc.subjectPlastic Strain
dc.subjectStress Distribution Crack Propagation
dc.titleStress-strain distribution and failure mechanisms in dual-phase steels investigated with microstructure-based modeling
dc.typeArticle

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