Year: 2024
Type: article
Abstract: Auxetic materials are mostly known for their negative Poisson's ratio, a parameter used to describe the deformation behavior of structures. This ratio serves a similar role as a material constant, detailing behavior on a microscopic scale. However, the deformation behavior of complex auxetic structures cannot be described completely using the classical Poisson's ratio approach. While it may suffice to describe auxetic behavior in foams or crystals, it fails for larger scales like the auxetic lattice structures, discussed in this study. To address this limitation, an extension to the classical Poisson's ratio is proposed to better describe the behavior of such structures. The developed method shows the different dependencies, namely the directional dependency, the frequency dependency and the position dependency of auxetic unit cells.
Source: PAMM
Institution: University of Stuttgart
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,090
Awards: G1222465449, Methodenentwicklung zur robusten hybriden wissens und datengetriebene Modellordnungsreduktion für deformierbare poröse fluidgesättigte Materialien, TRR 364: Synergien von hochintegrierten Transportflugzeugen SynTrac, G3196354511, Polymorphe Unschärfemodellierung, Auswertung und Quantifizierung flüssigkeitsgesättigter Böden und Erdbauwerke, G4885656604, G5190548690
OpenAlex ID: W4402374724