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Title:Experimental and numerical analysis of fracture mechanics behavior of heterogeneous zones in S690QL1 grade high strength steel (HSS) welded joint
Authors:ID Tomerlin, Damir (Author)
ID Kozak, Dražan (Author)
ID Ferlič, Luka (Author)
ID Gubeljak, Nenad (Author)
Files:.pdf materials-16-06929-v2_(1).pdf (11,25 MB)
MD5: F4C02538785B848B4B812CC1A64326EB
 
URL https://www.mdpi.com/1996-1944/16/21/6929
 
Language:English
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:The heterogeneity of welded joints’ microstructure affects their mechanical properties, which can vary significantly in relation to specific weld zones. Given the dimensional limitations of the available test volumes of such material zones, the determination of mechanical properties presents a certain challenge. The paper investigates X welded joint of S690QL1 grade high strength steel (HSS), welded with slightly overmatching filler metal. The experimental work is focused on tensile testing to obtain stress-strain properties, as well as fracture mechanics testing. Considering the aforementioned limitations of the material test volume, tensile testing is carried out with mini tensile specimens (MTS), determining stress-strain curves for each characteristic weld zone. Fracture mechanical testing is carried out to determine the fracture toughness using the characteristic parameters. The experimental investigation is carried out using the single edge notch bend (SENB) specimens located in several characteristic welded joint zones: base metal (BM), heat affected zone (HAZ), and weld metal (WM). Fractographic analysis provides deeper insight into crack behavior in relation to specific weld zones. The numerical simulations are carried out in order to describe the fracture behavior of SENB specimens. Damage initiation and evolution is simulated using the ductile damage material behavior. This paper demonstrates the possibility of experimental and numerical determination of fracture mechanics behavior of characteristic heterogeneous welded joint zones and their influence on crack path growth.
Keywords:heterogeneous welded joint, high strength steel, mechanical testing, damage, fracture, mechanical properties, finite element analysis
Publication status:Published
Publication version:Version of Record
Submitted for review:03.10.2023
Article acceptance date:24.10.2023
Publication date:28.10.2023
Publisher:MDPI
Year of publishing:2023
Number of pages:31 str.
Numbering:Vol. 16, iss. 21, [article no.] 6929
PID:20.500.12556/DKUM-86434 New window
UDC:539.42:621.791
ISSN on article:1996-1944
COBISS.SI-ID:171432195 New window
DOI:10.3390/ma16216929 New window
Publication date in DKUM:30.11.2023
Views:405
Downloads:32
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
TOMERLIN, Damir, KOZAK, Dražan, FERLIČ, Luka and GUBELJAK, Nenad, 2023, Experimental and numerical analysis of fracture mechanics behavior of heterogeneous zones in S690QL1 grade high strength steel (HSS) welded joint. Materials [online]. 2023. Vol. 16, no. 21,  6929. [Accessed 13 April 2025]. DOI 10.3390/ma16216929. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=86434
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Record is a part of a journal

Title:Materials
Shortened title:Materials
Publisher:MDPI
ISSN:1996-1944
COBISS.SI-ID:33588485 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:P2-0137
Name:Numerična in eksperimentalna analiza nelinearnih mehanskih sistemov

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:heterogeni zvarni spoji, visokotrdnostno jeklo, mehansko preizkušanje, poškodbe materiala, mehanika loma, mehanske lastnosti, analiza končnih elementov


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