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Topology and mechanics of metal rubber via X-ray tomography

Research output: Contribution to journalArticle

Original languageEnglish
Article number108067
Number of pages20
JournalMaterials and Design
Early online date26 Jul 2019
DateAccepted/In press - 22 Jul 2019
DateE-pub ahead of print - 26 Jul 2019
DatePublished (current) - 5 Nov 2019


This paper describes the structural characteristics of metal rubber (MR) evaluated by X-ray tomography and skeletonisation at microscopic scale. The parameters used to describe the internal structure of the MR were numerically extracted and compared to assess the effect of different MR manufacturing parameters on the mechanical properties of the material. Quasi-static tests were also performed to obtain the stiffness and damping of the metal porous material and to understand their correlation with the topology defining the samples. A simplified helix cell model was used to interpret the mechanical properties of the MR based on the structural parameters identified in this paper. The transverse isotropic stiffness of the MR observed here is partly caused by the distribution of the metal wires, with more helices oriented along the molding direction resulting in smaller equivalent stiffness. The compression, relative density, helix and wire diameters can influence the structural and mechanical characteristics of the MR in a significant manner.

    Research areas

  • CT scan, Entangled wire mesh, Mechanical property, Metal rubber, Microstructure parameters, Topology

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    Licence: CC BY-NC-ND


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