Chiral-lattice-filled composite tubes under uniaxial and lateral quasi-static load: Experimental studies

Kadir Gunaydin*, Aykut Tamer, Halit Suleyman Turkmen, Giuseppe Sala, Antonio Mattia Grande

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Our research investigated the energy absorption characteristics of chiral auxetic lattices filled cylindrical composite tubes subjected to a uniaxial and lateral quasi-static load. The lattice structures were manufactured using a 3D printing technique. Carbon fiber composite tubes without filler material were initially subjected to uniaxial and lateral quasi-static crushing load. The same types of experiment were then performed on chiral lattices and chiral lattices filled composite tubes. For the different cases, the load–displacements curves were analyzed and the specific energy absorption (SEA) values were compared. The SEA capability for the axial quasi-static crushing of the chiral lattices filled composite tubes decreased in comparison with the hollow composite design. However, the most significant result was that the average SEA value in the case of lateral loading increased dramatically in comparison with the hollow composite configuration.

Original languageEnglish
Article number3735
JournalApplied Sciences (Switzerland)
Issue number9
Publication statusPublished - 1 May 2021

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.


Funding: The experimental work of this paper was funded by Istanbul Technical University Industrial Researcher Training Programme (Istanbul Technical University and Republic of Turkey Ministry of Development) grant number ITU-AYP-2016-2. The APC was funded by Imperial College London Open Access Fund.

FundersFunder number
Imperial College London Open Access Fund
Istanbul Teknik ÜniversitesiITU-AYP-2016-2


    • 3D printing
    • Chiral auxetics
    • Composite tube
    • Crushing
    • Energy absorption


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