Numerical and experimental study of the behavior of a polyamide during the ECAE process using a 105° die.
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| Title: | Numerical and experimental study of the behavior of a polyamide during the ECAE process using a 105° die. |
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| Authors: | Habib, Houari1 houarihabib@yahoo.fr, Benaoumeur, Aour1 benaoumeur.aour@enp-oran.dz, Salah, Ramtani2 ramtani@univ-paris13.fr, Faycal, Benalia3 allfaycal@yahoo.fr, Salma, Barboura4 salma.barboura@univ-paris13.fr |
| Source: | Fracture & Structural Integrity. Apr2026, Issue 76, p238-264. 27p. |
| Subjects: | Polyamides, Manufacturing processes, Empirical research, Strain hardening, Stress-strain curves, Finite element method, Numerical analysis |
| Abstract: | This article presents a combined numerical and experimental investigation of the behavior of polyamide (PA 6.6) during the Equal Channel Angular Extrusion (ECAE) process using a 105° die. The study develops an elasto-viscoplastic constitutive model calibrated through compression tests at various strain rates and employs finite element analysis (FEA) to optimize die geometry, corner angles, friction conditions, and processing routes for improved strain homogeneity and mechanical performance. Experimental extrusion tests with one- and two-elbow (1-ECAE and 2-ECAE) dies confirm that the 2-ECAE configuration combined with Route C (180° sample rotation between passes) reduces sample warping and enhances strain uniformity compared to 1-ECAE. Hardness measurements indicate strain hardening increases with the number of passes, with Route A promoting continuous hardening and Route C yielding more stable mechanical properties. The findings highlight the critical influence of die design, friction control, and processing route on deformation behavior and mechanical strengthening of polyamide during ECAE, supporting its potential for industrial polymer processing. [Extracted from the article] |
| Copyright of Fracture & Structural Integrity is the property of Gruppo Italiano Frattura 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 |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192612110 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Numerical and experimental study of the behavior of a polyamide during the ECAE process using a 105° die. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Habib%2C+Houari%22">Habib, Houari</searchLink><relatesTo>1</relatesTo><i> houarihabib@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Benaoumeur%2C+Aour%22">Benaoumeur, Aour</searchLink><relatesTo>1</relatesTo><i> benaoumeur.aour@enp-oran.dz</i><br /><searchLink fieldCode="AR" term="%22Salah%2C+Ramtani%22">Salah, Ramtani</searchLink><relatesTo>2</relatesTo><i> ramtani@univ-paris13.fr</i><br /><searchLink fieldCode="AR" term="%22Faycal%2C+Benalia%22">Faycal, Benalia</searchLink><relatesTo>3</relatesTo><i> allfaycal@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Salma%2C+Barboura%22">Salma, Barboura</searchLink><relatesTo>4</relatesTo><i> salma.barboura@univ-paris13.fr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Fracture+%26+Structural+Integrity%22">Fracture & Structural Integrity</searchLink>. Apr2026, Issue 76, p238-264. 27p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Polyamides%22">Polyamides</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+processes%22">Manufacturing processes</searchLink><br /><searchLink fieldCode="DE" term="%22Empirical+research%22">Empirical research</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+hardening%22">Strain hardening</searchLink><br /><searchLink fieldCode="DE" term="%22Stress-strain+curves%22">Stress-strain curves</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This article presents a combined numerical and experimental investigation of the behavior of polyamide (PA 6.6) during the Equal Channel Angular Extrusion (ECAE) process using a 105° die. The study develops an elasto-viscoplastic constitutive model calibrated through compression tests at various strain rates and employs finite element analysis (FEA) to optimize die geometry, corner angles, friction conditions, and processing routes for improved strain homogeneity and mechanical performance. Experimental extrusion tests with one- and two-elbow (1-ECAE and 2-ECAE) dies confirm that the 2-ECAE configuration combined with Route C (180° sample rotation between passes) reduces sample warping and enhances strain uniformity compared to 1-ECAE. Hardness measurements indicate strain hardening increases with the number of passes, with Route A promoting continuous hardening and Route C yielding more stable mechanical properties. The findings highlight the critical influence of die design, friction control, and processing route on deformation behavior and mechanical strengthening of polyamide during ECAE, supporting its potential for industrial polymer processing. [Extracted from the article] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Fracture & Structural Integrity is the property of Gruppo Italiano Frattura 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3221/IGF-ESIS.76.15 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 27 StartPage: 238 Subjects: – SubjectFull: Polyamides Type: general – SubjectFull: Manufacturing processes Type: general – SubjectFull: Empirical research Type: general – SubjectFull: Strain hardening Type: general – SubjectFull: Stress-strain curves Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Numerical analysis Type: general Titles: – TitleFull: Numerical and experimental study of the behavior of a polyamide during the ECAE process using a 105° die. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Habib, Houari – PersonEntity: Name: NameFull: Benaoumeur, Aour – PersonEntity: Name: NameFull: Salah, Ramtani – PersonEntity: Name: NameFull: Faycal, Benalia – PersonEntity: Name: NameFull: Salma, Barboura IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19718993 Numbering: – Type: issue Value: 76 Titles: – TitleFull: Fracture & Structural Integrity Type: main |
| ResultId | 1 |
