scholarly journals Application of electrical impedance tomography to an anisotropic carbon fiber-reinforced polymer composite laminate for damage localization

2018 ◽  
Vol 160 ◽  
pp. 231-236 ◽  
Author(s):  
Susanne Nonn ◽  
Martin Schagerl ◽  
Yingjun Zhao ◽  
Sandra Gschossmann ◽  
Christoph Kralovec
Keyword(s):  
Carbon Fiber ◽  
Electrical Impedance Tomography ◽  
Polymer Composite ◽  
Composite Laminate ◽  
Electrical Impedance ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Damage Localization ◽  
Impedance Tomography ◽  
Reinforced Polymer

scholarly journals Improved current injection pattern for the detection of delaminations in carbon fiber reinforced polymer plates using electrical impedance tomography

2020 ◽  
pp. 147592172097230
Author(s):  
Mathias Haingartner ◽  
Sandra Gschoßmann ◽  
Max Cichocki ◽  
Martin Schagerl
Keyword(s):  
Carbon Fiber ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Current Injection ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Impedance Tomography ◽  
Reinforced Polymer ◽  
Carbon Fiber Reinforced

In this article, we introduce a new current injection pattern for electrical impedance tomography. The pattern improves the quality of hole detection in carbon fiber reinforced polymer plates and allows the detection of delaminations. The new pattern is described in detail and compared to three widely used, classical injection patterns. The advantages of the new pattern are demonstrated by numerical finite element analyses for three test cases: a hole of 10-mm diameter, two simultaneous holes, and an ideal delamination in a circular region with a 50-mm diameter. The results are validated experimentally by comparing electrical impedance tomography measurements of a carbon fiber reinforced polymer plate with at first one, then two holes with a 10-mm diameter using classical patterns and the new pattern.

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