Compressive behavior of aluminum/copper hybrid foams under high strain rate loading

Yi Sun, Rigoberto Burgueño, Andy J. Vanderklok, Srinivasan Arjun Tekalur, Wei Wang, Ilsoon Lee

    Research output: Research - peer-reviewArticle

    • 11 Citations

    Abstract

    The accessible interconnected structure of open-cell metal foams offers the opportunity to create hybrid foam materials through electrodeposited metal coatings, which has great potential for the fabrication of functionally-graded foam systems. Nanocopper coated aluminum (Al) foam was created by reinforcing conventional open-cell Al foams with electrodeposited nanocrystalline copper (Cu). The mechanical properties of such Al/Cu hybrid foam under high strain-rate compression were investigated using a split Hopkinson pressure bar and numerical methods were used to gain a further understanding on the micro-scale failure mechanisms. It was found that the stable compressive response of open-cell Al foam can be effectively enhanced by electrodeposited nanocopper coatings. However, such enhancement is limited by the relatively high brittleness of the Al/Cu hybrid foam due to the low ductility level of the electrodeposited nano-coating material. Nonetheless, this study also shows that the overall energy absorption performance of Al/Cu hybrid foams under high strain rate loading can be significantly improved by increasing the ductility level of the electrodeposited copper coating.

    LanguageEnglish (US)
    Pages111-120
    Number of pages10
    JournalMaterials Science and Engineering A
    Volume592
    DOIs
    StatePublished - Jan 13 2014

    Profile

    foams
    strain rate
    aluminum
    copper
    Aluminum
    Foams
    Strain rate
    Copper
    coatings
    cells
    Coatings
    ductility
    Ductility
    metal foams
    metal coatings
    brittleness
    energy absorption
    mechanical properties
    fabrication
    augmentation

    Keywords

    • Electrodeposition
    • Energy absorption
    • Finite element methods
    • High strain rate
    • Hybrid open-cell foams
    • Nanocrystalline materials

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanical Engineering
    • Mechanics of Materials

    Cite this

    Compressive behavior of aluminum/copper hybrid foams under high strain rate loading. / Sun, Yi; Burgueño, Rigoberto; Vanderklok, Andy J.; Tekalur, Srinivasan Arjun; Wang, Wei; Lee, Ilsoon.

    In: Materials Science and Engineering A, Vol. 592, 13.01.2014, p. 111-120.

    Research output: Research - peer-reviewArticle

    Sun, Yi ; Burgueño, Rigoberto ; Vanderklok, Andy J. ; Tekalur, Srinivasan Arjun ; Wang, Wei ; Lee, Ilsoon. / Compressive behavior of aluminum/copper hybrid foams under high strain rate loading. In: Materials Science and Engineering A. 2014 ; Vol. 592. pp. 111-120
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    abstract = "The accessible interconnected structure of open-cell metal foams offers the opportunity to create hybrid foam materials through electrodeposited metal coatings, which has great potential for the fabrication of functionally-graded foam systems. Nanocopper coated aluminum (Al) foam was created by reinforcing conventional open-cell Al foams with electrodeposited nanocrystalline copper (Cu). The mechanical properties of such Al/Cu hybrid foam under high strain-rate compression were investigated using a split Hopkinson pressure bar and numerical methods were used to gain a further understanding on the micro-scale failure mechanisms. It was found that the stable compressive response of open-cell Al foam can be effectively enhanced by electrodeposited nanocopper coatings. However, such enhancement is limited by the relatively high brittleness of the Al/Cu hybrid foam due to the low ductility level of the electrodeposited nano-coating material. Nonetheless, this study also shows that the overall energy absorption performance of Al/Cu hybrid foams under high strain rate loading can be significantly improved by increasing the ductility level of the electrodeposited copper coating.",
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