Crash behavior of nested tube structures with various cross sections

Fatih Usta; Halit S. Turkmen

doi:10.1109/RAST.2017.8002975

Crash behavior of nested tube structures with various cross sections

Fatih Usta, Halit S. Turkmen

Department of Aeronautical Engineering

Istanbul Technical University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Citations (Scopus)

Abstract

The purpose of this study is to examine the energy absorption characteristics of nested and concentric crash tubes with different cross sections under low velocity impact loading. They can be used as energy absorbers for the spacecraft vehicle to enhance crashworthiness under impact loads occurring during landing. Numerical analyses are performed by using LS-DYNA and the results are compared and discussed according to peak crash force, absorbed energy, deformations, folding mechanism, SEA and CFE values. As the number of corner is increased at the constant mass, the deformation of the tubes can be limited. Besides better crash force efficiency and lower peak forces are observed in the analyses of less cornered tubes.

Original language	English
Title of host publication	Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017
Editors	M.F. Unal, A. Hacioglu, M.S. Yildiz, O. Altan, M. Yorukoglu
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	23-27
Number of pages	5
ISBN (Electronic)	9781538616031
DOIs	https://doi.org/10.1109/RAST.2017.8002975
Publication status	Published - 4 Aug 2017
Event	8th International Conference on Recent Advances in Space Technologies, RAST 2017 - Istanbul, Turkey Duration: 19 Jun 2017 → 22 Jun 2017

Publication series

Name	Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017

Conference

Conference	8th International Conference on Recent Advances in Space Technologies, RAST 2017
Country/Territory	Turkey
City	Istanbul
Period	19/06/17 → 22/06/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Funding

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

Funders	Funder number
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu	115M465
Istanbul Teknik Üniversitesi

Keywords

crashworthiness
energy absorption
impact loading
nested crash tubes
peak force

UN SDGs

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

Access to Document

10.1109/RAST.2017.8002975

Cite this

Usta, F., & Turkmen, H. S. (2017). Crash behavior of nested tube structures with various cross sections. In M. F. Unal, A. Hacioglu, M. S. Yildiz, O. Altan, & M. Yorukoglu (Eds.), Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017 (pp. 23-27). Article 8002975 (Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RAST.2017.8002975

Usta, Fatih ; Turkmen, Halit S. / Crash behavior of nested tube structures with various cross sections. Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017. editor / M.F. Unal ; A. Hacioglu ; M.S. Yildiz ; O. Altan ; M. Yorukoglu. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 23-27 (Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017).

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Usta, F & Turkmen, HS 2017, Crash behavior of nested tube structures with various cross sections. in MF Unal, A Hacioglu, MS Yildiz, O Altan & M Yorukoglu (eds), Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017., 8002975, Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017, Institute of Electrical and Electronics Engineers Inc., pp. 23-27, 8th International Conference on Recent Advances in Space Technologies, RAST 2017, Istanbul, Turkey, 19/06/17. https://doi.org/10.1109/RAST.2017.8002975

Crash behavior of nested tube structures with various cross sections. / Usta, Fatih; Turkmen, Halit S.
Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017. ed. / M.F. Unal; A. Hacioglu; M.S. Yildiz; O. Altan; M. Yorukoglu. Institute of Electrical and Electronics Engineers Inc., 2017. p. 23-27 8002975 (Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - The purpose of this study is to examine the energy absorption characteristics of nested and concentric crash tubes with different cross sections under low velocity impact loading. They can be used as energy absorbers for the spacecraft vehicle to enhance crashworthiness under impact loads occurring during landing. Numerical analyses are performed by using LS-DYNA and the results are compared and discussed according to peak crash force, absorbed energy, deformations, folding mechanism, SEA and CFE values. As the number of corner is increased at the constant mass, the deformation of the tubes can be limited. Besides better crash force efficiency and lower peak forces are observed in the analyses of less cornered tubes.

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Usta F, Turkmen HS. Crash behavior of nested tube structures with various cross sections. In Unal MF, Hacioglu A, Yildiz MS, Altan O, Yorukoglu M, editors, Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 23-27. 8002975. (Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017). doi: 10.1109/RAST.2017.8002975

Crash behavior of nested tube structures with various cross sections

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

UN SDGs

Access to Document

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