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    Modulating Elastic Band Gap Structure in Layered Soft Composites Using Sacrificial Interfaces

    Source: Journal of Applied Mechanics:;2016:;volume( 083 ):;issue: 011::page 111009
    Author:
    Chen, Qianli
    ,
    Elbanna, Ahmed
    DOI: 10.1115/1.4034537
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A wide range of engineered and natural composites exhibit a layered architecture whereby individual building blocks are assembled layer by layer using cohesive interfaces. We present a novel mechanism for evolving acoustic band gap structure in a model system of these composites through patterning the microstructure in a way that triggers nonplanar interfacial deformations between the layers as they are stretched. Through the controlled deformation and growth of interlayer channels under macroscopic tension, we observe the emergence of multiple wide band gaps due to Bragg diffraction and local resonance. We describe these phenomena in details for three example microstructures and discuss the implications of our approach for harnessing controlled deformation in modulating band gap properties of composite materials.
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      Modulating Elastic Band Gap Structure in Layered Soft Composites Using Sacrificial Interfaces

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4236773
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    contributor authorChen, Qianli
    contributor authorElbanna, Ahmed
    date accessioned2017-11-25T07:20:56Z
    date available2017-11-25T07:20:56Z
    date copyright2016/09/09
    date issued2016
    identifier issn0021-8936
    identifier otherjam_083_11_111009.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4236773
    description abstractA wide range of engineered and natural composites exhibit a layered architecture whereby individual building blocks are assembled layer by layer using cohesive interfaces. We present a novel mechanism for evolving acoustic band gap structure in a model system of these composites through patterning the microstructure in a way that triggers nonplanar interfacial deformations between the layers as they are stretched. Through the controlled deformation and growth of interlayer channels under macroscopic tension, we observe the emergence of multiple wide band gaps due to Bragg diffraction and local resonance. We describe these phenomena in details for three example microstructures and discuss the implications of our approach for harnessing controlled deformation in modulating band gap properties of composite materials.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleModulating Elastic Band Gap Structure in Layered Soft Composites Using Sacrificial Interfaces
    typeJournal Paper
    journal volume83
    journal issue11
    journal titleJournal of Applied Mechanics
    identifier doi10.1115/1.4034537
    journal fristpage111009
    journal lastpage111009-8
    treeJournal of Applied Mechanics:;2016:;volume( 083 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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