A Comparative Analysis of the Fatigue Strength of Aluminium and Copper Wires Used for Power Cables.
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| Title: | A Comparative Analysis of the Fatigue Strength of Aluminium and Copper Wires Used for Power Cables. |
|---|---|
| Authors: | Knych, Tadeusz1 (AUTHOR), Smyrak, Beata1 (AUTHOR) smyrak@agh.edu.pl, Jurkiewicz, Bartosz1 (AUTHOR) |
| Source: | Materials (1996-1944). Sep2025, Vol. 18 Issue 18, p4426. 20p. |
| Subjects: | Aluminum wire, Copper wire, Electric cables, Mechanical behavior of materials, Fatigue cracks, Fatigue limit, Fractography, Electric conductivity |
| Abstract: | Recent studies have demonstrated that the utilisation of aluminium in electrical applications has increased substantially, particularly in the context of power cables. The substitution of copper with aluminium in cable fabrication is predominantly driven by economic considerations. When designing such cables, it is imperative to ascertain their functional properties, including their electrical conductivity and mechanical properties, and their operational properties, which include rheological, thermal, and material fatigue resistance. This is to ensure that the aluminium and copper cables are compatible. The primary challenge confronting researchers in this domain pertains to predicting and forecasting the failure of overhead cables during their operational lifecycle. One of the most significant and prevalent operational hazards is fatigue damage. This article presents the experimental results of fatigue tests on single Al and Cu wires in various states of mechanical reinforcement. The parameters of the Wöhler curve were determined, and a comparative analysis of the morphology of fatigue damage in single copper and aluminium wires was performed. It was found that copper wires are more fatigue-resistant than aluminium wires. In the case of high-cycle fatigue, this difference can amount to 106 cycles. An analysis of fatigue fracture morphology showed that fractures have a developed surface and that plastic deformation makes a significant contribution in the case of low-cycle fatigue. In the case of high-cycle fatigue, many cracks were observed in the copper wires. No such cracks were observed in the aluminium wires. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 188281978 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A Comparative Analysis of the Fatigue Strength of Aluminium and Copper Wires Used for Power Cables. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Knych%2C+Tadeusz%22">Knych, Tadeusz</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Smyrak%2C+Beata%22">Smyrak, Beata</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> smyrak@agh.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Jurkiewicz%2C+Bartosz%22">Jurkiewicz, Bartosz</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Sep2025, Vol. 18 Issue 18, p4426. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Aluminum+wire%22">Aluminum wire</searchLink><br /><searchLink fieldCode="DE" term="%22Copper+wire%22">Copper wire</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+cables%22">Electric cables</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Fatigue+cracks%22">Fatigue cracks</searchLink><br /><searchLink fieldCode="DE" term="%22Fatigue+limit%22">Fatigue limit</searchLink><br /><searchLink fieldCode="DE" term="%22Fractography%22">Fractography</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Recent studies have demonstrated that the utilisation of aluminium in electrical applications has increased substantially, particularly in the context of power cables. The substitution of copper with aluminium in cable fabrication is predominantly driven by economic considerations. When designing such cables, it is imperative to ascertain their functional properties, including their electrical conductivity and mechanical properties, and their operational properties, which include rheological, thermal, and material fatigue resistance. This is to ensure that the aluminium and copper cables are compatible. The primary challenge confronting researchers in this domain pertains to predicting and forecasting the failure of overhead cables during their operational lifecycle. One of the most significant and prevalent operational hazards is fatigue damage. This article presents the experimental results of fatigue tests on single Al and Cu wires in various states of mechanical reinforcement. The parameters of the Wöhler curve were determined, and a comparative analysis of the morphology of fatigue damage in single copper and aluminium wires was performed. It was found that copper wires are more fatigue-resistant than aluminium wires. In the case of high-cycle fatigue, this difference can amount to 106 cycles. An analysis of fatigue fracture morphology showed that fractures have a developed surface and that plastic deformation makes a significant contribution in the case of low-cycle fatigue. In the case of high-cycle fatigue, many cracks were observed in the copper wires. No such cracks were observed in the aluminium wires. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=188281978 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/ma18184426 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 4426 Subjects: – SubjectFull: Aluminum wire Type: general – SubjectFull: Copper wire Type: general – SubjectFull: Electric cables Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Fatigue cracks Type: general – SubjectFull: Fatigue limit Type: general – SubjectFull: Fractography Type: general – SubjectFull: Electric conductivity Type: general Titles: – TitleFull: A Comparative Analysis of the Fatigue Strength of Aluminium and Copper Wires Used for Power Cables. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Knych, Tadeusz – PersonEntity: Name: NameFull: Smyrak, Beata – PersonEntity: Name: NameFull: Jurkiewicz, Bartosz IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 09 Text: Sep2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 18 – Type: issue Value: 18 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
