STABILITY LOSS OF TAPE-SPRINGS UNDER COMPRESSIVE LOADS: A FINITE ELEMENT ANALYSIS

Proceedings of 41st Danubia-Adria Symposium Advances in Experimental Mechanics (pp. 43-44)

 

АУТОР(И) / AUTHOR(S): Péter Máté , András Szekrényes

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DOI:  10.46793/41DAS2025.043M

УВОД / INTRODUCTION:

Tape springs are thin, cylindrical shells that have versatile usage, ranging from simple measuring tapes, through clockwork springs, up to space antennas, hinges and self-deploying structures. They provide easy and compact storage, yet they can be extended to be used as beam-like load bearing elements. Under opposite-sense bending load they can easily lose their stability in a snap through phenomenon. Although the same-sense bending theoretically also results in a snap-through, experience shows that this cannot be realized as a torsional buckling mode emerges earlier. The usual applications make use either of their storability, the snap-through phenomenon, or the propagating moment, as it provides a practically constant, curvature-independent bending characteristic. Although they can be used as load bearing construction elements, their stability under compressive loads (their buckling behavior) was not analyzed. To plan measurements later, it was necessary to perform preliminary investigations to examine the expected behavior of these shell types.

КЉУЧНЕ РЕЧИ / KEYWORDS:

ПРОЈЕКАТ / ACKNOWLEDGEMENT:

This work has been supported by the National Research, Development and Innovation Office (NRDI) under grant no. 145988.

ЛИТЕРАТУРА / REFERENCES:

  • S. Seriani and P. Gallina. A Storable Tubular Extendible Member (STEM) parallel robot: Modelization and evaluation. In: Mechanism and Machine Theory 90 (Aug. 2015), pp. 95–107. issn: 0094-114X. DOI: 10.1016/j.mechmachtheory.2015.03.010.
  • S. Oberst, S. Tuttle, D. Griffin, A. Lambert, and R. Boyce. Experimental validation of tape springs to be used as thin-walled space structures. In: Journal of Sound and Vibration 419 (Apr. 2018), pp. 558–570. DOI: 10.1016/j.jsv.2018.01.014.
  • Ömer Soykasap. Analysis of tape spring hinges. In: International Journal of Mechanical Sciences 49.7 (Sept. 2007), pp. 853–860. DOI: 10.1016/j.ijmecsci.2006.11.013.
  • M. Martin, S. Bourgeois, B. Cochelin, and F. Guinot. Planar folding of shallow tape springs: The rod model with flexible cross-section revisited as a regularized Ericksen bar model. In: International Journal of Solids and Structures 188-189 (Apr. 2020), pp. 189–209. DOI: 10.1016/j.ijsolstr.2019.10.009