Assessment of transverse impact damage in GF/EP laminates of conductive nanoparticles using electrical resistivity tomography

Donghai Zhang, Lin Ye, Dong Wang, Youhong Tang, Samir Mustapha, Yunfa Chen

    Research output: Contribution to journalArticle

    52 Citations (Scopus)

    Abstract

    GF/EP composite laminates with an epoxy matrix modified by carbon black (CB) of 2.0 wt.% and copper chloride (CC) were manufactured by the vacuum assisted resin infusion (VARI) technique. The effects of CB nanoparticles and CC on improvement in Modes I and II interlaminar fracture toughness and impact damage resistance and on the electrical conductivity of GF/EP laminate composites were investigated. Delamination growth was calibrated by in situ electrical resistance changes during interlaminar fracture tests. The relationship between growth of delamination and change in electrical resistance was characterised. A damage index based on the change in electrical resistance was introduced, and a new method of electrical resistivity tomography was developed to access transverse impact damage in GF/EP laminates based on a matrix of conductive points in both in-plane and through-thickness directions. The damage images from in-plane and through-thickness electrical resistivity tomography were finally estimated with the corresponding C-scan.

    Original languageEnglish
    Pages (from-to)1587-1598
    Number of pages12
    JournalComposites Part A: Applied Science and Manufacturing
    Volume43
    Issue number9
    DOIs
    Publication statusPublished - Sep 2012

    Keywords

    • A. Glass fibres
    • A. Laminates
    • B. Delamination
    • B. Electrical properties

    Fingerprint Dive into the research topics of 'Assessment of transverse impact damage in GF/EP laminates of conductive nanoparticles using electrical resistivity tomography'. Together they form a unique fingerprint.

    Cite this