Improving Dynamic Material Characterization in SHPB Tests Through Optimized Friction Correction.
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| Title: | Improving Dynamic Material Characterization in SHPB Tests Through Optimized Friction Correction. |
|---|---|
| Authors: | Rusinek, Alexis1 (AUTHOR), Jankowiak, Tomasz2 (AUTHOR) tomasz.jankowiak@put.poznan.pl, Bendarma, Amine3,4 (AUTHOR) |
| Source: | Materials (1996-1944). Sep2025, Vol. 18 Issue 18, p4327. 18p. |
| Subjects: | Dynamic testing of materials, Interfacial friction, Materials testing, Finite element method, Constraints (Physics), Mesoscopic physics, Stress-strain curves |
| Abstract: | This study examines the influence of friction at the specimen–bar interface on the macroscopic response of materials during dynamic compression tests using the split Hopkinson Pressure Bar (SHPB) under high-deformation-rate conditions. A mesoscale model is employed to simulate and compare results with experimental data, and a finite element model of cylindrical specimens with varying slenderness ratios is developed in Abaqus/Explicit. Numerical analyzes show that both specimen geometry and boundary conditions, particularly friction, have a decisive impact on the accuracy and reliability of SHPB measurements. A friction correction method based on barreling factor and plastic deformation demonstrates closer agreement with experimental observations than conventional approaches, revealing that the widely used Avitzur model may overestimate friction by 34–39%. The results highlight the importance of accurate friction correction and the selection of optimal specimen dimensions to minimize testing errors. These findings improve the precision of dynamic material characterization and support the development of more reliable constitutive models to predict material behavior across a broad range of strain rates. [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: 188281879 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Improving Dynamic Material Characterization in SHPB Tests Through Optimized Friction Correction. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rusinek%2C+Alexis%22">Rusinek, Alexis</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jankowiak%2C+Tomasz%22">Jankowiak, Tomasz</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> tomasz.jankowiak@put.poznan.pl</i><br /><searchLink fieldCode="AR" term="%22Bendarma%2C+Amine%22">Bendarma, Amine</searchLink><relatesTo>3,4</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, p4327. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Dynamic+testing+of+materials%22">Dynamic testing of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Interfacial+friction%22">Interfacial friction</searchLink><br /><searchLink fieldCode="DE" term="%22Materials+testing%22">Materials testing</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Constraints+%28Physics%29%22">Constraints (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Mesoscopic+physics%22">Mesoscopic physics</searchLink><br /><searchLink fieldCode="DE" term="%22Stress-strain+curves%22">Stress-strain curves</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study examines the influence of friction at the specimen–bar interface on the macroscopic response of materials during dynamic compression tests using the split Hopkinson Pressure Bar (SHPB) under high-deformation-rate conditions. A mesoscale model is employed to simulate and compare results with experimental data, and a finite element model of cylindrical specimens with varying slenderness ratios is developed in Abaqus/Explicit. Numerical analyzes show that both specimen geometry and boundary conditions, particularly friction, have a decisive impact on the accuracy and reliability of SHPB measurements. A friction correction method based on barreling factor and plastic deformation demonstrates closer agreement with experimental observations than conventional approaches, revealing that the widely used Avitzur model may overestimate friction by 34–39%. The results highlight the importance of accurate friction correction and the selection of optimal specimen dimensions to minimize testing errors. These findings improve the precision of dynamic material characterization and support the development of more reliable constitutive models to predict material behavior across a broad range of strain rates. [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=188281879 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/ma18184327 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 4327 Subjects: – SubjectFull: Dynamic testing of materials Type: general – SubjectFull: Interfacial friction Type: general – SubjectFull: Materials testing Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Constraints (Physics) Type: general – SubjectFull: Mesoscopic physics Type: general – SubjectFull: Stress-strain curves Type: general Titles: – TitleFull: Improving Dynamic Material Characterization in SHPB Tests Through Optimized Friction Correction. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rusinek, Alexis – PersonEntity: Name: NameFull: Jankowiak, Tomasz – PersonEntity: Name: NameFull: Bendarma, Amine 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 |
