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Title:Numerical simulation of fatigue crack growth and fracture in welded joints using XFEM—a review of case studies
Authors:ID Sedmak, Aleksandar (Author)
ID Grbović, Aleksandar (Author)
ID Gubeljak, Nenad (Author)
ID Sedmak, Simon (Author)
ID Budimir, Nikola (Author)
Files:.pdf materials-17-05531_(2).pdf (13,42 MB)
MD5: D6B387DC478335B7DBF7E13C83A58AA5
 
URL https://www.mdpi.com/1996-1944/17/22/5531
 
Language:English
Work type:Article
Typology:1.02 - Review Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Numerical simulation of fatigue crack growth in welded joints is not well represented in the literature, especially from the point of view of material heterogeneity in a welded joint. Thus, several case studies are presented here, including some focusing on fracture, presented by two case studies of mismatched high-strength low-alloyed (HSLA) steel welded joints, with cracks in the heat affected zone (HAZ) or in weld metal (WM). For fatigue crack growth, the extended finite element method FEM (XFEM) was used, built in ABAQUS and ANSYS R19.2, as presented by four case studies, two of them without modelling different properties of the welded joint (WJ). In the first one, fatigue crack growth (FCG) in integral (welded) wing spar was simulated by XFEM to show that its path is partly along welded joints and provides a significantly longer fatigue life than riveted spars of the same geometry. In the second one, an integral skin-stringer panel, produced by means of laser beam welding (LBW), was analysed by XFEM in its usual form with stringers and additional welded clips. It was shown that the effect of the welded joint is not significant. In the remaining two papers, different zones in welded joints (base metal—BM, WM, and HAZ) were represented by different coefficients of the Paris law to simulate different resistances to FCG in the two cases; one welded joint was made of high-strength low-alloyed steel (P460NL1) and the other one of armour steel (Protac 500). Since neither ABAQUS nor ANSYS provide an option for defining different fatigue properties in different zones of the WJ, an innovative procedure was introduced and applied to simulate fatigue crack growth through different zones of the WJ and evaluate fatigue life more precisely than if the WJ is treated as a homogeneous material.
Keywords:fatigue crack growth, extended finite element method, welded joints, fatigue life, highstrength low-alloyed steel
Publication status:Published
Publication version:Version of Record
Submitted for review:23.09.2024
Article acceptance date:06.11.2024
Publication date:13.11.2024
Publisher:MDPI
Year of publishing:2024
Number of pages:21 str.
Numbering:Vol. 17, iss. 22, [article no.] 5531
PID:20.500.12556/DKUM-91180 New window
UDC:539.4:621.791
ISSN on article:1996-1944
COBISS.SI-ID:215467523 New window
DOI:10.3390/ma17225531 New window
Publication date in DKUM:25.11.2024
Views:0
Downloads:7
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
SEDMAK, Aleksandar, GRBOVIĆ, Aleksandar, GUBELJAK, Nenad, SEDMAK, Simon and BUDIMIR, Nikola, 2024, Numerical simulation of fatigue crack growth and fracture in welded joints using XFEM—a review of case studies. Materials [online]. 2024. Vol. 17, no. 22,  5531. [Accessed 13 April 2025]. DOI 10.3390/ma17225531. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=91180
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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

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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:utrujanje, rast razpoke, razširjena metoda končnih elementov, zvarni spoji, življenjska doba zvarnega spoja, udarna žilavost, trdnost spojev


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