Fracto-Emission from Fiber-Reinforced and Particulate Filled Composites

Dickinson, J. T.; Jahan-Latibari, Ahmad; Jensen, L. C.

doi:10.1007/978-3-662-29084-2_7

Cited by 1 publication

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References 16 publications

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“…Dickinson et al [1][2][3][4][5][6] studied fractoemission in composite materials. However, they focused mostly on the detection of electron, positive ion and proton emissions.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of electromagnetic emission signals generated by crack generation in composite materials

Koktavý¹

2008

Meas. Sci. Technol.

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The formation of a crack is accompanied by the generation of an electromagnetic field. A differential equation was derived and solved to describe the transformation of the field parameters into an electric signal, provided capacitive sensors are used. In the next stage, an analysis of spurious external electromagnetic and acoustic fields was carried out, and measures to suppress their effects were designed. The issue of amplifying extremely low electromagnetic signals generated during the crack formation was dealt with, too. The mentioned analyses resulted in the design of a method to detect and evaluate electromagnetic emission (EME) signals and acoustic emission (AE) signals, which accompany mechanical stressing of materials and structures. Based on the results of such analyses, an automated double-channel measuring apparatus was used for signal data acquisition, saving and processing. The operation of the apparatus was successfully tested by processing a large set of measurement results obtained from a composite material called ‘extren’. Our experimental results confirmed the correctness of both the EME and AE measurement methods, and measuring apparatus design. Our measurement results make it possible to track the behaviour of cracks, localize them and evaluate some of their basic parameters.

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“…Dickinson et al [1][2][3][4][5][6] studied fractoemission in composite materials. However, they focused mostly on the detection of electron, positive ion and proton emissions.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of electromagnetic emission signals generated by crack generation in composite materials

Koktavý¹

2008

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Fracto-Emission from Fiber-Reinforced and Particulate Filled Composites

Cited by 1 publication

References 16 publications

Experimental study of electromagnetic emission signals generated by crack generation in composite materials

Experimental study of electromagnetic emission signals generated by crack generation in composite materials

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