Doctoral Thesis

Eddy Current Probe Design and its Application on Aircraft Composite Structures

Main document 7.22 MB Thesis 2.22 MB

FSIDoctoral ThesisStudent: Ing. Marie Boháčová, Ph.D.Acad. year: 2017/2018

Leader: doc. Ing. Pavel Mazal, CSc.

Opponents: prof. Ing. Karel Hájek, CSc., Ing. Bernard Kopec, CSc.

This thesis deals with design of an eddy current transducer which enables non-destructive inspection of composite aircraft structures primarily carbon fiber reinforced plastic (CFRP) in areas of manufacture and maintenance. The design of the transducer is based on analytical-experimental approach and its electrical and mechanical parameters were optimized to ensure a good signal to noise ratio at the six composite samples. These samples contain artificial discontinuities in the form of various types of defects. These defects are simulating the various types of damage created in the aircraft structure, especially delamination or thickness changes of composite materials. The experimental measurements, data collection and non-destructive evaluation were performed during the period. The result of this work is functional eddy current probe, which is reliably able to detect some damage of the carbon composite structures to the depth of 3,9 mm.




Defended (thesis was successfully defended)





Study branch

Physical and Materials Engineering

Classification by leader
doc. Ing. Pavel Mazal, CSc.

viz. posudek v pdf.

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stanovisko školitele.pdf 58.31 kB

Classification by opponent
prof. Ing. Karel Hájek, CSc.

viz. posudek v pdf.

File inserted by the reviewer Size
Boháčová - DDP.pdf 199.45 kB

Classification by opponent
Ing. Bernard Kopec, CSc.

viz. posudek v pdf.

File inserted by the reviewer Size
Oponentura_disertace_MBoháčová.pdf 127.19 kB


Composite structure, CFRP, eddy current, NDT, probe design, damage