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Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich panels

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Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich panels. / Mazloomi, Mohammad Sadegh; Ranjbar, Mostafa; Boldrin, Luca; Scarpa, Fabrizio; Patsias, Sophoclis; Ozada, Neriman.

In: Composite Structures, Vol. 187, 01.03.2018, p. 593-603.

Research output: Contribution to journalArticle

Harvard

Mazloomi, MS, Ranjbar, M, Boldrin, L, Scarpa, F, Patsias, S & Ozada, N 2018, 'Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich panels' Composite Structures, vol. 187, pp. 593-603. https://doi.org/10.1016/j.compstruct.2017.10.077

APA

Mazloomi, M. S., Ranjbar, M., Boldrin, L., Scarpa, F., Patsias, S., & Ozada, N. (2018). Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich panels. Composite Structures, 187, 593-603. https://doi.org/10.1016/j.compstruct.2017.10.077

Vancouver

Mazloomi MS, Ranjbar M, Boldrin L, Scarpa F, Patsias S, Ozada N. Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich panels. Composite Structures. 2018 Mar 1;187:593-603. https://doi.org/10.1016/j.compstruct.2017.10.077

Author

Mazloomi, Mohammad Sadegh ; Ranjbar, Mostafa ; Boldrin, Luca ; Scarpa, Fabrizio ; Patsias, Sophoclis ; Ozada, Neriman. / Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich panels. In: Composite Structures. 2018 ; Vol. 187. pp. 593-603.

Bibtex

@article{24408cb101224713ad7f842b3a43353a,
title = "Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich panels",
abstract = "This paper describes the vibroacoustic behavior of sandwich panels with a novel core topology made from 2-dimensionally gradient auxetic hexagonal honeycombs. The 2D gradient core enables a tailoring of localized mechanical properties of the sandwich structure in different regions of the panel. A homogenized finite element modeling has been used to initially determine the mechanical properties of the structures. The natural frequencies and the radiated sound power level of the sandwich plate with the homogenized properties have been calculated and verified with those obtained from a full-scale detailed model of the sandwich structure. The geometry of the 2-dimensionally gradient auxetic core has been then optimized using two different techniques in order to minimize the radiated sound power level over the frequency range of 0 to 200 Hz. The optimized design of the 2-D gradient core shows a remarkable reduction of the radiated sound power level for the sandwich structure when taking into account the mass of the panels. The results of this study provide new insights about the vibroacoustic behavior of hexagonal auxetic sandwich structures with complex core geometry.",
keywords = "2-D gradient, Auxetic, Genetic algorithm, Hexagonal, MMA, Optimization, Sandwich panel, Vibroacoustic",
author = "Mazloomi, {Mohammad Sadegh} and Mostafa Ranjbar and Luca Boldrin and Fabrizio Scarpa and Sophoclis Patsias and Neriman Ozada",
year = "2018",
month = "3",
day = "1",
doi = "10.1016/j.compstruct.2017.10.077",
language = "English",
volume = "187",
pages = "593--603",
journal = "Composite Structures",
issn = "0263-8223",
publisher = "Elsevier",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Vibroacoustics of 2D gradient auxetic hexagonal honeycomb sandwich panels

AU - Mazloomi, Mohammad Sadegh

AU - Ranjbar, Mostafa

AU - Boldrin, Luca

AU - Scarpa, Fabrizio

AU - Patsias, Sophoclis

AU - Ozada, Neriman

PY - 2018/3/1

Y1 - 2018/3/1

N2 - This paper describes the vibroacoustic behavior of sandwich panels with a novel core topology made from 2-dimensionally gradient auxetic hexagonal honeycombs. The 2D gradient core enables a tailoring of localized mechanical properties of the sandwich structure in different regions of the panel. A homogenized finite element modeling has been used to initially determine the mechanical properties of the structures. The natural frequencies and the radiated sound power level of the sandwich plate with the homogenized properties have been calculated and verified with those obtained from a full-scale detailed model of the sandwich structure. The geometry of the 2-dimensionally gradient auxetic core has been then optimized using two different techniques in order to minimize the radiated sound power level over the frequency range of 0 to 200 Hz. The optimized design of the 2-D gradient core shows a remarkable reduction of the radiated sound power level for the sandwich structure when taking into account the mass of the panels. The results of this study provide new insights about the vibroacoustic behavior of hexagonal auxetic sandwich structures with complex core geometry.

AB - This paper describes the vibroacoustic behavior of sandwich panels with a novel core topology made from 2-dimensionally gradient auxetic hexagonal honeycombs. The 2D gradient core enables a tailoring of localized mechanical properties of the sandwich structure in different regions of the panel. A homogenized finite element modeling has been used to initially determine the mechanical properties of the structures. The natural frequencies and the radiated sound power level of the sandwich plate with the homogenized properties have been calculated and verified with those obtained from a full-scale detailed model of the sandwich structure. The geometry of the 2-dimensionally gradient auxetic core has been then optimized using two different techniques in order to minimize the radiated sound power level over the frequency range of 0 to 200 Hz. The optimized design of the 2-D gradient core shows a remarkable reduction of the radiated sound power level for the sandwich structure when taking into account the mass of the panels. The results of this study provide new insights about the vibroacoustic behavior of hexagonal auxetic sandwich structures with complex core geometry.

KW - 2-D gradient

KW - Auxetic

KW - Genetic algorithm

KW - Hexagonal

KW - MMA

KW - Optimization

KW - Sandwich panel

KW - Vibroacoustic

UR - http://www.scopus.com/inward/record.url?scp=85041382141&partnerID=8YFLogxK

U2 - 10.1016/j.compstruct.2017.10.077

DO - 10.1016/j.compstruct.2017.10.077

M3 - Article

VL - 187

SP - 593

EP - 603

JO - Composite Structures

T2 - Composite Structures

JF - Composite Structures

SN - 0263-8223

ER -