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Title:The influence of the ratio of circumference to cross-sectional area of tensile bars on the fatigue life of additive manufactured AISI 316L steel
Authors:ID Ferlič, Luka (Author)
ID Jerenec, Filip (Author)
ID Šercer, Mario (Author)
ID Drstvenšek, Igor (Author)
ID Gubeljak, Nenad (Author)
Files:.pdf metals-14-01246-v2.pdf (33,45 MB)
MD5: 4180100B6BDFB43B3E79EBEA48E1C43A
 
URL https://www.mdpi.com/2075-4701/14/11/1246
 
Language:English
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:The static and dynamic loading capacities of components depend on the stress level to which the material is exposed. The fatigue behavior of materials manufactured using additive technology is accompanied by a pronounced scatter between the number of cycles at the same stress level, which is significantly greater than the scatter from a material with the same chemical composition, e.g., AISI 316L, but produced by rolling or forging. An important reason lies in the fact that fatigue cracks are initiated almost always below the material surface of the loaded specimen. Thus, in the article, assuming that a crack will always initiate below the surface, we analyzed the fatigue behavior of specimens with the same bearing cross section but with a different number of bearing rods. With a larger number of rods, the circumference around the supporting part of the rods was 1.73 times larger. Thus, experimental fatigue of specimens with different sizes showed that the dynamic loading capacity of components with a smaller number of bars is significantly greater and can be monitored by individual stress levels. Although there are no significant differences in loading capacity under static and low-cycle loading of materials manufactured with additive technologies, in high-cycle fatigue it has been shown that the ratio between the circumference and the loading cross section of tensile-loaded rods plays an important role in the lifetime. This finding is important for setting a strategy for manufacturing components with additive technologies. It shows that a better dynamic loading capacity can be obtained with a larger loading cross section.
Keywords:AISI 316L stainless steel, additive manufacturing, FEM, high-cycle fatigue, fractography analysis
Publication status:Published
Publication version:Version of Record
Submitted for review:21.10.2024
Article acceptance date:24.10.2024
Publication date:02.11.2024
Publisher:MDPI
Year of publishing:2024
Number of pages:28 str.
Numbering:Vol. 14, iss. 11, [article no.] 1246
PID:20.500.12556/DKUM-91178 New window
UDC:620.178.3
ISSN on article:2075-4701
COBISS.SI-ID:214295555 New window
DOI:10.3390/met14111246 New window
Publication date in DKUM:25.11.2024
Views:0
Downloads:15
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
FERLIČ, Luka, JERENEC, Filip, ŠERCER, Mario, DRSTVENŠEK, Igor and GUBELJAK, Nenad, 2024, The influence of the ratio of circumference to cross-sectional area of tensile bars on the fatigue life of additive manufactured AISI 316L steel. Metals [online]. 2024. Vol. 14, no. 11,  1246. [Accessed 13 April 2025]. DOI 10.3390/met14111246. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=91178
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Record is a part of a journal

Title:Metals
Shortened title:Metals
Publisher:MDPI AG
ISSN:2075-4701
COBISS.SI-ID:15976214 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0137-2022
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:nerjaveče jeklo AISI 316L, dodajalne tehnologije, visokociklično utrujanje, fraktografska analiza


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