Compressive properties of graphite-embedded expanded polystyrene for vibroacoustic engineering applications

Hyo Seon Park, Yousok Kim, Byung Kwan Oh, Tongjun Cho

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The transmission of low-frequency floor impact noises in buildings remains a longstanding problem to be solved. To design insulation materials for attenuating the low-frequency floor impact noises, a distinctive property with a dynamic stiffness that is low enough to achieve natural frequencies that are also sufficiently low, without an excessively low structural strength, is required. The mechanical properties of compressively deformed graphite-embedded expanded polystyrene foam were investigated and evaluated for the application to the low frequency insulation. In addition to the role of embedding graphite in decreasing stiffness, compression processing was shown to both reduce the dynamic stiffness and maintain the structural strength of the specimen, which provides an appropriate property for the application. This characteristic is assumed to be associated with the macroscopic deformation mechanics of closed-cell foam in response to compressive stress, which is distinct from that of open-cell foam or fibrous materials. The improved insulation performance of the compressively deformed specimen was verified through laboratory vibroacoustic tests. Moreover, based on the laboratory testing, the effect of changes in the structural wave fields on material optimization is discussed.

Original languageEnglish
Pages (from-to)252-264
Number of pages13
JournalComposites Part B: Engineering
Volume93
DOIs
Publication statusPublished - 2016 May 15

Fingerprint

Graphite
Polystyrenes
Foams
Insulation
Stiffness
Compressive stress
Natural frequencies
Mechanics
Compaction
Mechanical properties
Testing
Processing

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

@article{37bbdb2b160242919cffd37a80d871ed,
title = "Compressive properties of graphite-embedded expanded polystyrene for vibroacoustic engineering applications",
abstract = "The transmission of low-frequency floor impact noises in buildings remains a longstanding problem to be solved. To design insulation materials for attenuating the low-frequency floor impact noises, a distinctive property with a dynamic stiffness that is low enough to achieve natural frequencies that are also sufficiently low, without an excessively low structural strength, is required. The mechanical properties of compressively deformed graphite-embedded expanded polystyrene foam were investigated and evaluated for the application to the low frequency insulation. In addition to the role of embedding graphite in decreasing stiffness, compression processing was shown to both reduce the dynamic stiffness and maintain the structural strength of the specimen, which provides an appropriate property for the application. This characteristic is assumed to be associated with the macroscopic deformation mechanics of closed-cell foam in response to compressive stress, which is distinct from that of open-cell foam or fibrous materials. The improved insulation performance of the compressively deformed specimen was verified through laboratory vibroacoustic tests. Moreover, based on the laboratory testing, the effect of changes in the structural wave fields on material optimization is discussed.",
author = "Park, {Hyo Seon} and Yousok Kim and Oh, {Byung Kwan} and Tongjun Cho",
year = "2016",
month = "5",
day = "15",
doi = "10.1016/j.compositesb.2016.03.004",
language = "English",
volume = "93",
pages = "252--264",
journal = "Composites Part B: Engineering",
issn = "1359-8368",
publisher = "Elsevier Limited",

}

Compressive properties of graphite-embedded expanded polystyrene for vibroacoustic engineering applications. / Park, Hyo Seon; Kim, Yousok; Oh, Byung Kwan; Cho, Tongjun.

In: Composites Part B: Engineering, Vol. 93, 15.05.2016, p. 252-264.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Compressive properties of graphite-embedded expanded polystyrene for vibroacoustic engineering applications

AU - Park, Hyo Seon

AU - Kim, Yousok

AU - Oh, Byung Kwan

AU - Cho, Tongjun

PY - 2016/5/15

Y1 - 2016/5/15

N2 - The transmission of low-frequency floor impact noises in buildings remains a longstanding problem to be solved. To design insulation materials for attenuating the low-frequency floor impact noises, a distinctive property with a dynamic stiffness that is low enough to achieve natural frequencies that are also sufficiently low, without an excessively low structural strength, is required. The mechanical properties of compressively deformed graphite-embedded expanded polystyrene foam were investigated and evaluated for the application to the low frequency insulation. In addition to the role of embedding graphite in decreasing stiffness, compression processing was shown to both reduce the dynamic stiffness and maintain the structural strength of the specimen, which provides an appropriate property for the application. This characteristic is assumed to be associated with the macroscopic deformation mechanics of closed-cell foam in response to compressive stress, which is distinct from that of open-cell foam or fibrous materials. The improved insulation performance of the compressively deformed specimen was verified through laboratory vibroacoustic tests. Moreover, based on the laboratory testing, the effect of changes in the structural wave fields on material optimization is discussed.

AB - The transmission of low-frequency floor impact noises in buildings remains a longstanding problem to be solved. To design insulation materials for attenuating the low-frequency floor impact noises, a distinctive property with a dynamic stiffness that is low enough to achieve natural frequencies that are also sufficiently low, without an excessively low structural strength, is required. The mechanical properties of compressively deformed graphite-embedded expanded polystyrene foam were investigated and evaluated for the application to the low frequency insulation. In addition to the role of embedding graphite in decreasing stiffness, compression processing was shown to both reduce the dynamic stiffness and maintain the structural strength of the specimen, which provides an appropriate property for the application. This characteristic is assumed to be associated with the macroscopic deformation mechanics of closed-cell foam in response to compressive stress, which is distinct from that of open-cell foam or fibrous materials. The improved insulation performance of the compressively deformed specimen was verified through laboratory vibroacoustic tests. Moreover, based on the laboratory testing, the effect of changes in the structural wave fields on material optimization is discussed.

UR - http://www.scopus.com/inward/record.url?scp=84962019141&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84962019141&partnerID=8YFLogxK

U2 - 10.1016/j.compositesb.2016.03.004

DO - 10.1016/j.compositesb.2016.03.004

M3 - Article

VL - 93

SP - 252

EP - 264

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

SN - 1359-8368

ER -