Determination of dynamic stiffness of resilient materials using a lightweight load plate 2-DOF method.
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| Title: | Determination of dynamic stiffness of resilient materials using a lightweight load plate 2-DOF method. |
|---|---|
| Authors: | Urban, Daniel1,2 (AUTHOR) daniel.urban@tuwien.ac.at, Jurci, Milan2 (AUTHOR), Neusser, Maximilian1 (AUTHOR) |
| Source: | Building Acoustics. Jun2026, Vol. 33 Issue 2, p429-457. 29p. |
| Subjects: | Dynamic stiffness, Test methods, Soundproofing, Cushioning materials, Insulating materials, Building materials industry |
| Abstract: | The trend of increasing the ratio of environmentally friendly solutions in the building industry is on the rise. We increasingly encounter solutions that utilise loose-form materials or, to improve thermal insulation and acoustic properties, typically multilayer lightweight systems. However, it has been proven that predicting the impact of loose-form blown-in materials on sound insulation properties can be a matter of debate. Blown-in materials with a higher bulk density tend to connect the individual layers of lightweight walls mechanically. It is not trivial to accurately determine the stiffness of the blown-in material after application in the building structure. This is especially important when creating prediction models. This paper deals with the determination of the dynamic stiffness of soft materials using the light load plate and two degrees of freedom (2-DOF) method. Since the case of evaluating resilient materials at low loads is outside the recommended range of boundary conditions as defined by EN 29052-1, this extensive work gradually analyses the relevance of applying an alternative measurement method. It discusses the effect of compression of a soft material on its actual dynamic stiffness, the effect of the excitation form of the light load plate, and presents a preliminary measurement approach. Numerical models support individual analyses and measurements. Even though testing fibrous materials in loose form is a very challenging task, a significant change in stiffness under the influence of loading has been demonstrated. [ABSTRACT FROM AUTHOR] |
| Copyright of Building Acoustics is the property of Sage Publications Inc. 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: 193893710 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Determination of dynamic stiffness of resilient materials using a lightweight load plate 2-DOF method. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Urban%2C+Daniel%22">Urban, Daniel</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> daniel.urban@tuwien.ac.at</i><br /><searchLink fieldCode="AR" term="%22Jurci%2C+Milan%22">Jurci, Milan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Neusser%2C+Maximilian%22">Neusser, Maximilian</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Building+Acoustics%22">Building Acoustics</searchLink>. Jun2026, Vol. 33 Issue 2, p429-457. 29p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Dynamic+stiffness%22">Dynamic stiffness</searchLink><br /><searchLink fieldCode="DE" term="%22Test+methods%22">Test methods</searchLink><br /><searchLink fieldCode="DE" term="%22Soundproofing%22">Soundproofing</searchLink><br /><searchLink fieldCode="DE" term="%22Cushioning+materials%22">Cushioning materials</searchLink><br /><searchLink fieldCode="DE" term="%22Insulating+materials%22">Insulating materials</searchLink><br /><searchLink fieldCode="DE" term="%22Building+materials+industry%22">Building materials industry</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The trend of increasing the ratio of environmentally friendly solutions in the building industry is on the rise. We increasingly encounter solutions that utilise loose-form materials or, to improve thermal insulation and acoustic properties, typically multilayer lightweight systems. However, it has been proven that predicting the impact of loose-form blown-in materials on sound insulation properties can be a matter of debate. Blown-in materials with a higher bulk density tend to connect the individual layers of lightweight walls mechanically. It is not trivial to accurately determine the stiffness of the blown-in material after application in the building structure. This is especially important when creating prediction models. This paper deals with the determination of the dynamic stiffness of soft materials using the light load plate and two degrees of freedom (2-DOF) method. Since the case of evaluating resilient materials at low loads is outside the recommended range of boundary conditions as defined by EN 29052-1, this extensive work gradually analyses the relevance of applying an alternative measurement method. It discusses the effect of compression of a soft material on its actual dynamic stiffness, the effect of the excitation form of the light load plate, and presents a preliminary measurement approach. Numerical models support individual analyses and measurements. Even though testing fibrous materials in loose form is a very challenging task, a significant change in stiffness under the influence of loading has been demonstrated. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Building Acoustics is the property of Sage Publications Inc. 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: 10.1177/1351010X251414513 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 29 StartPage: 429 Subjects: – SubjectFull: Dynamic stiffness Type: general – SubjectFull: Test methods Type: general – SubjectFull: Soundproofing Type: general – SubjectFull: Cushioning materials Type: general – SubjectFull: Insulating materials Type: general – SubjectFull: Building materials industry Type: general Titles: – TitleFull: Determination of dynamic stiffness of resilient materials using a lightweight load plate 2-DOF method. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Urban, Daniel – PersonEntity: Name: NameFull: Jurci, Milan – PersonEntity: Name: NameFull: Neusser, Maximilian IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 1351010X Numbering: – Type: volume Value: 33 – Type: issue Value: 2 Titles: – TitleFull: Building Acoustics Type: main |
| ResultId | 1 |
