In Situ Monitoring of Thermally Cycled Metal Matrix Composites by Neutron Diffraction and Laser Extensometry

Mark R. Daymond, Philip J. Withers

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A novel stroboscopic neutron diffraction data collection system has been developed. In combination with scanning laser extensometry this has been used to investigate the thermal cycling behaviour of SiC short fibre reinforced Al matrix composites. Three-dimensional unit cell finite element models have been produced, incorporating matrix deformation both by creep and plasticity. Comparison of the experimental results with model predictions has allowed conclusions to be drawn about the deformation processes which dominate at different parts of the thermal cycle.
    Original languageEnglish
    Pages (from-to)375-393
    Number of pages18
    JournalApplied Composite Materials
    Volume4
    Issue number6
    Publication statusPublished - 1997

    Keywords

    • Extensometry
    • Internal stress
    • Metal matrix composite
    • Neutron diffraction
    • Relaxation
    • Residual stress
    • Stroboscopic
    • Thermal cycling
    • Thermal stress

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