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    Volume 8, Issue 1

    Computation of Fracture Parameters in Stepwise Functionally Graded Materials Using Digital Image Correlation Technique

    (Received 21 November 2018; accepted 25 June 2019)

    Published Online: 2019

    CODEN: MPCACD

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    Abstract

    This research reports the computation of the fracture parameters, namely T-stress and stress intensity factors of a stepwise functionally graded material (FGM) by using the digital image correlation technique. A five-layer epoxy/glass FGM with layers varying from pure epoxy to 60 % glass/40 % epoxy was investigated. The effects of the crack-tip positions and crack length on the nonsingular terms were analyzed. In addition, the numerical simulation of the layered FGM was investigated to further evaluate the fracture parameters. The numerical and experimental model results were compared, and good agreement was obtained between the experimental and numerical tests. Accordingly, the numerical models developed with the corresponding material properties can be used for the evaluation of fracture parameters of the developed FGM.

    Author Information:

    Khazal, Haider
    Mechanical Department, College of Engineering, Basrah University, Basrah,

    Hassan, Abdul Kareem F.
    Mechanical Department, College of Engineering, Basrah University, Basrah,

    Farouq, Wafaa
    Mechanical Department, College of Engineering, Basrah University, Basrah,

    Bayesteh, Hamid
    School of Civil Engineering, College of Engineering, University of Tehran, Tehran,


    Stock #: MPC20180175

    ISSN:2379-1365

    DOI: 10.1520/MPC20180175

    Author
    Title Computation of Fracture Parameters in Stepwise Functionally Graded Materials Using Digital Image Correlation Technique
    Symposium ,
    Committee E01