The deformation behavior of intersecting ligaments forming variants of the square and rectangular grids under mechanical compression was investigated. It was shown that such systems are able to exhibit a negative incremental Poisson’s ratio at relatively large axial compressive strains. Numerical simulations and experimental studies indicated that the extent of auxeticity depends on the relative offset of successive ligaments, the relative lengths of the ligaments as well as on their thickness. It was also shown that there are two distinct modes of deformation, one resembling that of the reentrant hexagonal honeycomb and the other that of the meta-tetrachiral system.

Auxetic behavior obtained through the large deformations of variants of the rectangular grid / Farrugia, P. -S.; Gatt, R.; Mizzi, L.; Grima, J. N.. - In: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES. - ISSN 1537-6532. - 30:2(2023), pp. 262-271. [10.1080/15376494.2021.2012616]

Auxetic behavior obtained through the large deformations of variants of the rectangular grid

Mizzi L.;
2023

Abstract

The deformation behavior of intersecting ligaments forming variants of the square and rectangular grids under mechanical compression was investigated. It was shown that such systems are able to exhibit a negative incremental Poisson’s ratio at relatively large axial compressive strains. Numerical simulations and experimental studies indicated that the extent of auxeticity depends on the relative offset of successive ligaments, the relative lengths of the ligaments as well as on their thickness. It was also shown that there are two distinct modes of deformation, one resembling that of the reentrant hexagonal honeycomb and the other that of the meta-tetrachiral system.
2023
11-dic-2021
30
2
262
271
Auxetic behavior obtained through the large deformations of variants of the rectangular grid / Farrugia, P. -S.; Gatt, R.; Mizzi, L.; Grima, J. N.. - In: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES. - ISSN 1537-6532. - 30:2(2023), pp. 262-271. [10.1080/15376494.2021.2012616]
Farrugia, P. -S.; Gatt, R.; Mizzi, L.; Grima, J. N.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1276549
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