In-plane tensile behavior of shape memory alloy honeycombs with positive and negative poisson's ratio

M. R. Hassan, F. Scarpa, N. A. Mohamed

    Research output: Contribution to journalArticle

    18 Citations (Scopus)

    Abstract

    This work illustrates the manufacturing and tensile testing of a novel concept of honeycomb structures with hexagonal and auxetic (negative Poisson's ratio) topology, made of shape memory alloy core material. The honeycombs are manufactured using Nitinol ribbons having 6.40 mm of width and 0.2 mm of thickness. The ribbons were inserted in a special dye using cyanoacrilate to bond the longitudinal strips of the unit cells. Tensile tests at room temperature (full martensite) were performed on the honeycombs. Finite element models of the honeycomb assemblies under tensile loading have been developed using nonlinear beam elements from a commercial code. Good agreement is observed between numerical nonlinear simulations and the experimental results.

    Original languageEnglish
    Pages (from-to)897-905
    Number of pages9
    JournalJournal of Intelligent Material Systems and Structures
    Volume20
    Issue number8
    DOIs
    Publication statusPublished - May 2009

    Fingerprint

    Honeycomb structures
    Tensile testing
    Poisson ratio
    Shape memory effect
    Martensite
    Coloring Agents
    Dyes
    Topology
    Temperature
    nitinol

    Keywords

    • Auxetic
    • Finite element
    • Honeycomb
    • SMA
    • Tensile loading

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanical Engineering

    Cite this

    In-plane tensile behavior of shape memory alloy honeycombs with positive and negative poisson's ratio. / Hassan, M. R.; Scarpa, F.; Mohamed, N. A.

    In: Journal of Intelligent Material Systems and Structures, Vol. 20, No. 8, 05.2009, p. 897-905.

    Research output: Contribution to journalArticle

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