Toroidal sandwich panels with auxetic core under impact loads: Numerical simulations

Fatih Usta; Halit S. Turkmen; Fabrizio Scarpa

doi:10.1109/RAST.2019.8767843

Toroidal sandwich panels with auxetic core under impact loads: Numerical simulations

Fatih Usta, Halit S. Turkmen, Fabrizio Scarpa

Uçak Mühendisliği Bölümü

University of Bristol

Araştırma sonucu: ???type-name??? › Konferans katkısı › bilirkişi

2 Atıf (Scopus)

Özet

In this work we examine the impact behavior of single and doubly curved structures with auxetic cores by using numerical methods. We have evaluated twelve different doubly and one single curved panels impacted by a spherical projectile at a velocity of 100 m/s. The results are firstly discussed by considering the effects of the curvature on the backplane displacement and the energy absorption of the panels. A selected toroidal configuration is then modeled as sandwich structure with an auxetic (re-entrant)core and a spherical projectile is shot on different locations from center to edge. The sandwich structure is made by carbon fiber/epoxy laminates, while the reentrant core is represented with ABSplus plastic. It is found that the damaged area of the auxetic core differs from a traditional honeycomb under impact loading, and this is mainly due to its negative Poisson's ratio.

Orijinal dil	İngilizce
Ana bilgisayar yayını başlığı	Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019
Editörler	S. Menekay, O. Cetin, O. Alparslan
Yayınlayan	Institute of Electrical and Electronics Engineers Inc.
Sayfalar	25-28
Sayfa sayısı	4
ISBN (Elektronik)	9781538694480
DOI'lar	https://doi.org/10.1109/RAST.2019.8767843
Yayın durumu	Yayınlandı - Haz 2019
Etkinlik	9th International Conference on Recent Advances in Space Technologies, RAST 2019 - Istanbul, Turkey Süre: 11 Haz 2019 → 14 Haz 2019

Yayın serisi

Adı	Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???	9th International Conference on Recent Advances in Space Technologies, RAST 2019
Ülke/Bölge	Turkey
Şehir	Istanbul
Periyot	11/06/19 → 14/06/19

Bibliyografik not

Publisher Copyright:
© 2019 IEEE.

Finansman

ACKNOWLEDGMENT SupportforthisworkhasbeenprovidedbytheScientific and Technological Research Council of Turkey (TUBITAK) under Fellowship Number 2214-A with application number 1059B141800436 and by Istanbul Technical University ResearchFundundertheProjectNumber41414.

Finansörler	Finansör numarası
Istanbul Technical University ResearchFundundertheProjectNumber41414
TUBITAK	1059B141800436
Technological Research Council of Turkey

Belgeye Erişim

10.1109/RAST.2019.8767843

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

Usta, F., Turkmen, H. S., & Scarpa, F. (2019). Toroidal sandwich panels with auxetic core under impact loads: Numerical simulations. In S. Menekay, O. Cetin, & O. Alparslan (Eds.), Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019 (pp. 25-28). Makale 8767843 (Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RAST.2019.8767843

Usta, Fatih ; Turkmen, Halit S. ; Scarpa, Fabrizio. / Toroidal sandwich panels with auxetic core under impact loads : Numerical simulations. Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019. editör / S. Menekay ; O. Cetin ; O. Alparslan. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 25-28 (Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019).

@inproceedings{44e9f613911646a78ea77cda14835d86,

title = "Toroidal sandwich panels with auxetic core under impact loads: Numerical simulations",

abstract = "In this work we examine the impact behavior of single and doubly curved structures with auxetic cores by using numerical methods. We have evaluated twelve different doubly and one single curved panels impacted by a spherical projectile at a velocity of 100 m/s. The results are firstly discussed by considering the effects of the curvature on the backplane displacement and the energy absorption of the panels. A selected toroidal configuration is then modeled as sandwich structure with an auxetic (re-entrant)core and a spherical projectile is shot on different locations from center to edge. The sandwich structure is made by carbon fiber/epoxy laminates, while the reentrant core is represented with ABSplus plastic. It is found that the damaged area of the auxetic core differs from a traditional honeycomb under impact loading, and this is mainly due to its negative Poisson's ratio.",

keywords = "Auxetic materials, Doubly curved structures, Projectile impact, Sandwich panels",

author = "Fatih Usta and Turkmen, {Halit S.} and Fabrizio Scarpa",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 9th International Conference on Recent Advances in Space Technologies, RAST 2019 ; Conference date: 11-06-2019 Through 14-06-2019",

year = "2019",

month = jun,

doi = "10.1109/RAST.2019.8767843",

language = "English",

series = "Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "25--28",

editor = "S. Menekay and O. Cetin and O. Alparslan",

booktitle = "Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019",

address = "United States",

}

Usta, F, Turkmen, HS & Scarpa, F 2019, Toroidal sandwich panels with auxetic core under impact loads: Numerical simulations. in S Menekay, O Cetin & O Alparslan (eds), Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019., 8767843, Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019, Institute of Electrical and Electronics Engineers Inc., pp. 25-28, 9th International Conference on Recent Advances in Space Technologies, RAST 2019, Istanbul, Turkey, 11/06/19. https://doi.org/10.1109/RAST.2019.8767843

Toroidal sandwich panels with auxetic core under impact loads: Numerical simulations. / Usta, Fatih; Turkmen, Halit S.; Scarpa, Fabrizio.
Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019. ed. / S. Menekay; O. Cetin; O. Alparslan. Institute of Electrical and Electronics Engineers Inc., 2019. p. 25-28 8767843 (Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019).

Araştırma sonucu: ???type-name??? › Konferans katkısı › bilirkişi

TY - GEN

T1 - Toroidal sandwich panels with auxetic core under impact loads

T2 - 9th International Conference on Recent Advances in Space Technologies, RAST 2019

AU - Usta, Fatih

AU - Turkmen, Halit S.

AU - Scarpa, Fabrizio

PY - 2019/6

Y1 - 2019/6

N2 - In this work we examine the impact behavior of single and doubly curved structures with auxetic cores by using numerical methods. We have evaluated twelve different doubly and one single curved panels impacted by a spherical projectile at a velocity of 100 m/s. The results are firstly discussed by considering the effects of the curvature on the backplane displacement and the energy absorption of the panels. A selected toroidal configuration is then modeled as sandwich structure with an auxetic (re-entrant)core and a spherical projectile is shot on different locations from center to edge. The sandwich structure is made by carbon fiber/epoxy laminates, while the reentrant core is represented with ABSplus plastic. It is found that the damaged area of the auxetic core differs from a traditional honeycomb under impact loading, and this is mainly due to its negative Poisson's ratio.

AB - In this work we examine the impact behavior of single and doubly curved structures with auxetic cores by using numerical methods. We have evaluated twelve different doubly and one single curved panels impacted by a spherical projectile at a velocity of 100 m/s. The results are firstly discussed by considering the effects of the curvature on the backplane displacement and the energy absorption of the panels. A selected toroidal configuration is then modeled as sandwich structure with an auxetic (re-entrant)core and a spherical projectile is shot on different locations from center to edge. The sandwich structure is made by carbon fiber/epoxy laminates, while the reentrant core is represented with ABSplus plastic. It is found that the damaged area of the auxetic core differs from a traditional honeycomb under impact loading, and this is mainly due to its negative Poisson's ratio.

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KW - Doubly curved structures

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KW - Sandwich panels

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Usta F, Turkmen HS, Scarpa F. Toroidal sandwich panels with auxetic core under impact loads: Numerical simulations. In Menekay S, Cetin O, Alparslan O, editörler, Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 25-28. 8767843. (Proceedings of 9th International Conference on Recent Advances in Space Technologies, RAST 2019). doi: 10.1109/RAST.2019.8767843

Toroidal sandwich panels with auxetic core under impact loads: Numerical simulations

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