Electromagnetic Characterization of Anisotropic and Weakly Conductive Materials by Using Resonant Circuits

Menana, Hocine

doi:10.2528/pierl14103003

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…For the calculation of C3, the measurement of the electrical conductivity of the sample is required. It is known that the electrical conductivity of the CFRP is anisotropic [21,22]. In the external coupling, the induced currents mainly flow along the carbon fibres.…”

Section: B) Setting For the Empirical Expression Of Kmentioning

confidence: 99%

Detection and evaluation of damage in aircraft composites using electromagnetically coupled inductors

Haigh

Soutis

et al. 2016

Composite Structures

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The paper presents a quantitative damage evaluation of carbon-fibre reinforced polymer (CFRP) plates using a non-contact electromagnetic (EM) sensor. The EM sensor with coupled spiral inductors (CSI) is employed here to detect both impact induced and simulated damage leading to an accurate evaluation of the location, depth and width of sub-surface defects. The effect of inspection frequency, standoff distance and signal power are also investigated leading to the development of an engineering circuit design tool that relates the set up and calibration of the sensor to its detection performance. It is found that the dynamic range of the transmission coefficient is the limiting factor in the original Salski CSI sensor and this problem is addressed by adding ferrite layers to reduce the reluctance of the magnetic circuit, improving damage sensing by 22%. The study leads to a further development of utilising an open ferrite yoke with a pair of encircling coils, which shows a 57 % sensitivity improvement and clearer identification of air gaps (voids) and delamination in CFRP laminates. The proposed EM yoke design CSI sensor is low cost and could be assembled into an array for non-contact, in situ mechatronic scanning of aircraft composite wings.

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Section: B) Setting For the Empirical Expression Of Kmentioning

confidence: 99%

Detection and evaluation of damage in aircraft composites using electromagnetically coupled inductors

Haigh

Soutis

et al. 2016

Composite Structures

View full text Add to dashboard Cite

show abstract

Experimental and Numerical Characterization of the PTFE Material in the X-Band Frequency

Amine

Benzaoui

Ales

et al. 2022

2022 2nd International Conference on Advanced Electrical Engineering (ICAEE)

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Electromagnetic Characterization of Anisotropic and Weakly Conductive Materials by Using Resonant Circuits

Abstract: Abstract-This work deals with the electromagnetic characterization of the electrical conductivity of anisotropic and weakly conductive materials by using resonant circuits. Experimental results characterizing a carbon fiber reinforced polymer (CFRP) ply are presented.

Cited by 2 publications

References 8 publications

Detection and evaluation of damage in aircraft composites using electromagnetically coupled inductors

Detection and evaluation of damage in aircraft composites using electromagnetically coupled inductors

Experimental and Numerical Characterization of the PTFE Material in the X-Band Frequency

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