OS0617 Interlaminar Shear and Electrical Resistance Responses of Woven Carbon Fiber Reinforced Polymer Composites at Cryogenic Temperatures from Short Beam Shear Tests

2012 ◽  
Vol 2012 (0) ◽  
pp. _OS0617-1_-_OS0617-2_
Author(s):  
Tatsuya FUKUZAKI ◽  
Yasuhide SHINDO ◽  
Tomo TAKEDA ◽  
Fumio NARITA
2018 ◽  
Vol 18 (5-6) ◽  
pp. 1698-1710 ◽  
Author(s):  
Jan Cagáň ◽  
Jaroslav Pelant ◽  
Martin Kyncl ◽  
Martin Kadlec ◽  
Lenka Michalcová

Electrical resistance tomography is a method for sensing the spatial distribution of electrical conductivity. Therefore, this type of tomography is suitable for sensing damages, which affect electrical conductivity. The utilization of resistance tomography for the structural health monitoring of carbon fiber–reinforced polymer composites is questionable owing to its low spatial resolution and the strong anisotropy of carbon fiber–reinforced polymer composites. This article deals with the employment of resistance tomography with regularization based on a Gaussian anisotropic smoothing filter for the detection of cuts. The advantages of the filter are shown through the image reconstruction of rectangular composite specimens with three different laminate stacking sequences. The cuts are implemented by a milled groove. Visual comparison of the images shows a substantial improvement in the shape reconstruction ability. In addition to visual comparison, the image reconstructions are assessed in terms of the reconstruction error and cross-correlation.


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