Impact behavior of triggered and non-triggered crash tubes with auxetic lattices

Fatih Usta; Osman F. Ertaş; Altuğ Ataalp; Halit S. Türkmen; Zafer Kazancı; Fabrizio Scarpa

doi:10.1007/s41939-018-00040-z

Impact behavior of triggered and non-triggered crash tubes with auxetic lattices

Fatih Usta^*, Osman F. Ertaş, Altuğ Ataalp, Halit S. Türkmen, Zafer Kazancı, Fabrizio Scarpa

^*Corresponding author for this work

Department of Aeronautical Engineering

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

In this study, impact behavior of triggered and non-triggered tubes with and without auxetic filler is examined using numerical methods. Material properties of tubes made of aluminum alloy and auxetic lattices utilizing ABSplus plastics are determined using tensile tests. Finite element analyses are performed using LS-DYNA software at 5 m/s impact velocity. Two different trigger shapes are suggested and compared each other and discussed the advantages and disadvantages over non-triggered tubes. For these loading conditions, trigger mechanism provides lower peak forces and higher crash force efficiency (CFE), but lower specific energy absorption (SEA). In addition, the effects of using auxetic fillers in these triggered tubes are investigated in terms of crashworthiness characteristics.

Original language	English
Pages (from-to)	119-127
Number of pages	9
Journal	Multiscale and Multidisciplinary Modeling, Experiments and Design
Volume	2
Issue number	2
DOIs	https://doi.org/10.1007/s41939-018-00040-z
Publication status	Published - 1 Jun 2019

Bibliographical note

Publisher Copyright:
© 2018, Springer Nature Switzerland AG.

Funding

Support for this work has been provided by the Scientific and Technological Research Council of Turkey under Project Number 115M465.

Funders	Funder number
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu	115M465

Keywords

Auxetic materials
Crash tube
Energy absorption
Impact loading

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s41939-018-00040-z

Cite this

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abstract = "In this study, impact behavior of triggered and non-triggered tubes with and without auxetic filler is examined using numerical methods. Material properties of tubes made of aluminum alloy and auxetic lattices utilizing ABSplus plastics are determined using tensile tests. Finite element analyses are performed using LS-DYNA software at 5 m/s impact velocity. Two different trigger shapes are suggested and compared each other and discussed the advantages and disadvantages over non-triggered tubes. For these loading conditions, trigger mechanism provides lower peak forces and higher crash force efficiency (CFE), but lower specific energy absorption (SEA). In addition, the effects of using auxetic fillers in these triggered tubes are investigated in terms of crashworthiness characteristics.",

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AU - Kazancı, Zafer

AU - Scarpa, Fabrizio

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N2 - In this study, impact behavior of triggered and non-triggered tubes with and without auxetic filler is examined using numerical methods. Material properties of tubes made of aluminum alloy and auxetic lattices utilizing ABSplus plastics are determined using tensile tests. Finite element analyses are performed using LS-DYNA software at 5 m/s impact velocity. Two different trigger shapes are suggested and compared each other and discussed the advantages and disadvantages over non-triggered tubes. For these loading conditions, trigger mechanism provides lower peak forces and higher crash force efficiency (CFE), but lower specific energy absorption (SEA). In addition, the effects of using auxetic fillers in these triggered tubes are investigated in terms of crashworthiness characteristics.

AB - In this study, impact behavior of triggered and non-triggered tubes with and without auxetic filler is examined using numerical methods. Material properties of tubes made of aluminum alloy and auxetic lattices utilizing ABSplus plastics are determined using tensile tests. Finite element analyses are performed using LS-DYNA software at 5 m/s impact velocity. Two different trigger shapes are suggested and compared each other and discussed the advantages and disadvantages over non-triggered tubes. For these loading conditions, trigger mechanism provides lower peak forces and higher crash force efficiency (CFE), but lower specific energy absorption (SEA). In addition, the effects of using auxetic fillers in these triggered tubes are investigated in terms of crashworthiness characteristics.

KW - Auxetic materials

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Impact behavior of triggered and non-triggered crash tubes with auxetic lattices

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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