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    Towards meso scale impedance-based monitoring of degradation in laminated composites

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    Type
    Conference Paper
    Authors
    Lubineau, Gilles cc
    Remesan, Harilal
    Almuhammadi, Khaled H. cc
    Selvakumaran, Lakshmi
    Bera, Tushar Kanti
    KAUST Department
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2016-01-01
    Permanent link to this record
    http://hdl.handle.net/10754/666560
    
    Metadata
    Show full item record
    Abstract
    A practical way to track the evolution of damage in laminated composites is to monitor the change of its electrical resistance. Such measurements can be conveniently processed at the meso scale by using recently developed rigorous micro meso relations for electrical conductivity. Yet, pure resistive monitoring is limited due to small penetration without the material. Electrical impedance spectroscopy (EIS) of carbon fiber reinforced polymer (CFRP) has been conducted with ECG electrodes directly pasted on the CFRP samples without removing the resin layer. The impedance and phase angle variations obtained for a CFRP composite plate with delamination is compared to the data obtained from a sample without delamination. Results demonstrate that the impedance and phase angle profiles change for a CFRP plate with delamination from a sample without delamination. The delamination induced impedance variation in CFRP composites can be utilized for nondestructive damage evaluation.
    Sponsors
    This research has been funded by te Baseline Research Funds of King Abdullah University of Science and Technology.
    Publisher
    European Conference on Composite Materials, ECCM
    Conference/Event name
    17th European Conference on Composite Materials, ECCM 2016
    ISBN
    9783000533877
    Additional Links
    https://research.kaust.edu.sa/en/publications/towards-meso-scale-impedance-based-monitoring-of-degradation-in-l-2
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program

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