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    Mechanical Properties Assessments for Materials of High Porosity and Light Alloys with Predominant Embedded Phases

    Identifiers
    URI: http://hdl.handle.net/11556/1113
    ISSN: 1860-949X
    ISBN: 978-3-030-71615-8
    DOI: 10.1007/978-3-030-71616-5_32
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    Author/s
    Parashkevova, Ludmila; Drenchev, Ludmil; Egizabal, Pedro
    Date
    2021
    Keywords
    Light alloys
    Multiphase composites
    Mechanical properties
    Abstract
    In the present contribution, upgrading the findings of previous works, [11], new models are proposed for evaluation of effective mechanical properties of light alloys regarded as multiphase composites. This study concerns three - phase composites with high volume fraction of non-matrix phases. The elastic properties assessments of such materials are calculated by analytical approach based on the variant of Differential Effective Medium (DEM) method. Here in the methodology from [10, 11] is further developed for two cases: composite type A and composite type B. The composite A consists of matrix and two inclusion phases. The matrix material is much softer than the inclusions material of the first kind and at it is much harder than the inclusions of second kind. The composite B is a closed cell porous material. It is assumed that the high porosity is induced by spherical pores of two sets very different by size: Di≫diDi≫di. At high volume fraction of pore space the average diameter of small ...
    Type
    conferenceObject

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