VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Ultrasound and eddy current nondestructive evaluation of CFRP - correlation with mechanical properties of the composite [Elektronski vir]
    Grimberg, Raimond ...
    Carbon fiber reinforced plastics (CFRP) composite materials are wide used as structural materials in aeronautics, transportation, etc. The bi-phase nature of the CFRP makes that the possible ... degradations shall depend not only by the properties of fiber and matrix, but also by the properties of interfaces and interlaminate. The adequate ultrasound techniques allow the determination of the propagation speed of the longitudinal and transversal waves and, also, of Lamb wave, A0 mode, generated by Hertzian contact. These methods allow the precise evaluation of the elastic modulus E, shear modulus G on the three principal directions. The data are compared with those obtained by classical destructive tests and with a dynamic mechanical analyzer, being found a good correlation. These procedures allow also the emphasizing of matrix damages dueto water absorption. C-scan ultrasound using phased array allows the emphasizing and characterization of delamination due to low energy impacts as well as of yones with porosities that appear during composite fabrication or due to local overheating.
    Vir: 10th ECNDT [Elektronski vir] : 10th European Conference on Non-Destructive Testing, Moscow, June 7-11, 2010 (Str. [1-10])
    Vrsta gradiva - prispevek na konferenci
    Leto - 2010
    Jezik - angleški
    COBISS.SI-ID - 11419931

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