Composite Structure as a Stress Wave Barrier Zone Under Impulse Loading: Microscale Numerical Analysis of Attenuation.
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| Title: | Composite Structure as a Stress Wave Barrier Zone Under Impulse Loading: Microscale Numerical Analysis of Attenuation. |
|---|---|
| Authors: | Murčinková, Zuzana1 (AUTHOR), Sabol, Dominik1 (AUTHOR), Baron, Petr1 (AUTHOR) petr.baron@tuke.sk |
| Source: | Materials (1996-1944). Dec2025, Vol. 18 Issue 24, p5599. 17p. |
| Subjects: | Composite structures, Attenuation (Physics), Impact loads, Finite element method, Microstructure |
| Abstract: | Highlights: What are the main findings? In discontinuously reinforced composites, hollow inclusions enhance stress wave attenuation by over 20% compared to solid ones due to greater deformation and scattering. Elongated inclusion orientation strongly affects attenuation, with perpendicular alignment increasing efficiency by 18.5%. A compliant interlayer and specified inclusion distribution further improve attenuation by 3–11%. What is the implication of the main finding? Optimizing inclusion shape and orientation enhances stress wave attenuation. Hollow inclusions and compliant large interlayers increases energy dissipation and scattering. Controlled inclusion distribution enables efficient stress wave barrier zones design. This study investigates the design factors of stress wave barrier zones intended for manufacturing machines under impulse loading, using polymer discontinuously reinforced composites with specified internal microstructures, which effectively suppress stress at the wave front, promote uniform stress distribution, improve impact resistance, and reduce vibrations and noise. Two-dimensional representative unit cells and explicit finite element simulations were used to analyze stress wave propagation under impulse loading. The effects of inclusion shape, orientation, distribution, interlayer, and size of the interface on stress wave scattering and attenuation were examined. In our models, hollow inclusions demonstrated 20.6% higher attenuation compared to solid inclusions, with the hollow fiber inclusion showing the most significant improvement. Inclusion orientation relative to the stress wave direction affected attenuation by 18.5%, while redistribution of inclusions and addition of a compliant interlayer contributed additional increments of 3–11%. These results highlight the critical role of microscale topology in stress barrier zone designing, such that the combined adjustment of inclusion shape, orientation, interlayer presence, and spatial distribution provides an effective strategy to maximize stress wave attenuation. [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: 190471532 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Composite Structure as a Stress Wave Barrier Zone Under Impulse Loading: Microscale Numerical Analysis of Attenuation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Murčinková%2C+Zuzana%22">Murčinková, Zuzana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sabol%2C+Dominik%22">Sabol, Dominik</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Baron%2C+Petr%22">Baron, Petr</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> petr.baron@tuke.sk</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Dec2025, Vol. 18 Issue 24, p5599. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Composite+structures%22">Composite structures</searchLink><br /><searchLink fieldCode="DE" term="%22Attenuation+%28Physics%29%22">Attenuation (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Impact+loads%22">Impact loads</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Highlights: What are the main findings? In discontinuously reinforced composites, hollow inclusions enhance stress wave attenuation by over 20% compared to solid ones due to greater deformation and scattering. Elongated inclusion orientation strongly affects attenuation, with perpendicular alignment increasing efficiency by 18.5%. A compliant interlayer and specified inclusion distribution further improve attenuation by 3–11%. What is the implication of the main finding? Optimizing inclusion shape and orientation enhances stress wave attenuation. Hollow inclusions and compliant large interlayers increases energy dissipation and scattering. Controlled inclusion distribution enables efficient stress wave barrier zones design. This study investigates the design factors of stress wave barrier zones intended for manufacturing machines under impulse loading, using polymer discontinuously reinforced composites with specified internal microstructures, which effectively suppress stress at the wave front, promote uniform stress distribution, improve impact resistance, and reduce vibrations and noise. Two-dimensional representative unit cells and explicit finite element simulations were used to analyze stress wave propagation under impulse loading. The effects of inclusion shape, orientation, distribution, interlayer, and size of the interface on stress wave scattering and attenuation were examined. In our models, hollow inclusions demonstrated 20.6% higher attenuation compared to solid inclusions, with the hollow fiber inclusion showing the most significant improvement. Inclusion orientation relative to the stress wave direction affected attenuation by 18.5%, while redistribution of inclusions and addition of a compliant interlayer contributed additional increments of 3–11%. These results highlight the critical role of microscale topology in stress barrier zone designing, such that the combined adjustment of inclusion shape, orientation, interlayer presence, and spatial distribution provides an effective strategy to maximize stress wave attenuation. [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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/ma18245599 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 5599 Subjects: – SubjectFull: Composite structures Type: general – SubjectFull: Attenuation (Physics) Type: general – SubjectFull: Impact loads Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Microstructure Type: general Titles: – TitleFull: Composite Structure as a Stress Wave Barrier Zone Under Impulse Loading: Microscale Numerical Analysis of Attenuation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Murčinková, Zuzana – PersonEntity: Name: NameFull: Sabol, Dominik – PersonEntity: Name: NameFull: Baron, Petr IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 12 Text: Dec2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 18 – Type: issue Value: 24 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
