Morozov, Maxim and Jackson, William and Pierce, S. G. (2017) Capacitive imaging of impact damage in composite material. Composites Part B: Engineering. ISSN 1359-8368
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This work presents capacitive non-destructive imaging of impact damage in woven fibre CFRP using a coplanar capacitive sensor. Novelty of the approach consists in that spectral characteristics of the capacitive sensor response to CFRP properties are firstly used to establish excitation frequencies for optimum imaging of delamination. For the tested samples optimum excitation frequencies were found to be above 200MHz. Clear capacitive images of delaminations were obtained on each sample. Ultrasonic (UT) Cscans of delaminations due to impacts were acquired using phased array technique to confirm presence and extent of the delaminations. Capacitive imaging technique can be used as complementary to UT for imaging shallow defects in composite materials at depths where UT has insufficient time domain resolution.
|Keywords:||carbon fibre, delamination, non-destructive tesing, capacitive imaging, Electrical engineering. Electronics Nuclear engineering, Mechanics of Materials, Ceramics and Composites, Mechanical Engineering, Industrial and Manufacturing Engineering|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering|
|Depositing user:||Pure Administrator|
|Date Deposited:||11 Jan 2017 09:50|
|Last modified:||01 May 2017 03:16|