Crashworthiness and dimensional stability analysis of zero Poisson’s ratio fish cells lattice structures

dc.contributor.authorJha, Ashutosh
dc.contributor.authorCimolai, Guglielmo
dc.contributor.authorDayyani, Iman
dc.date.accessioned2023-11-06T14:24:03Z
dc.date.available2023-11-06T14:24:03Z
dc.date.issued2023-11-03
dc.description.abstractThe present article introduces Zero Poisson's Ratio (ZPR) Fish Cells metamaterial and investigates the effects of Poisson's Ratio on the crashworthiness of Positive (PPR), Negative (NPR), and Zero Poisson's Ratio lattice structures. High-fidelity Finite Element models of the proposed sandwich structures are built, based on identical domains for unit cells. Impact performances of lattice structures are addressed for low (2 m/s) and high (5 m/s) impact velocities in three orthogonal directions. The parameters investigated for crashworthiness include impactor's penetration depth, von Mises stress distribution, edges deformation and dimensional stability. Numerical results demonstrate that, unlike PPR and NPR models, the Fish Cells ZPR model possesses greater lateral stability and structural integrity with minimal edge deformations in all three directions. This leads to reduced lateral impact transfer to adjacent components and localised damaged zones, increasing the life span of structural components while reducing maintenance and repair downtime. Experimental analyses are conducted on the Fish Cells metamaterial through a drop tower test for demonstrating agreement with simulations and validation of the proposed modelling approach.en_UK
dc.identifier.citationJha A, Cimolai G, Dayyani I. (2024) Crashworthiness and dimensional stability analysis of zero Poisson’s ratio fish cells lattice structures, International Journal of Impact Engineering, Volume 184, February 2024, Article Number 104809en_UK
dc.identifier.eissn1879-3509
dc.identifier.issn0734-743X
dc.identifier.urihttps://doi.org/10.1016/j.ijimpeng.2023.104809
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20506
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectSandwich Structuresen_UK
dc.subjectZero Poisson's Ratio (ZPR)en_UK
dc.subjectfinite elementsen_UK
dc.subjectImpact Analysisen_UK
dc.subjectDimensional Stabilityen_UK
dc.titleCrashworthiness and dimensional stability analysis of zero Poisson’s ratio fish cells lattice structuresen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Dimensional_stability_analysis-2023.pdf
Size:
13.35 MB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description: