Impact damage analysis of composite materials with a mm-wave synthetic aperture radar

Author

Nezadal, Martin ; Schur, Jan ; Schmidt, Lorenz-Peter

Author_Institution

Lehrstuhl fur Hochfrequenztech., Friedrich-Alexander Univ. Erlangen-Nurnberg, Erlangen, Germany

fYear

2013

fDate

1-6 Sept. 2013

Firstpage

1

Lastpage

2

Abstract

This paper presents investigations on impact damages on carbon and glass fibre reinforced plastics with a synthetic aperture radar in the frequency range of the W-Band (75 to 110 GHz) and J-Band (220 to 325 GHz). It was possible to detect the high energy impacts in the carbon fibre samples due to their phase delay in both bands. With the glass fibre samples it was also possible to detect changes in magnitude besides the phase delay. The three dimensional image reconstruction also revealed the damages beneath the surface.

Keywords

carbon fibre reinforced composites; delays; glass fibre reinforced plastics; image reconstruction; millimetre wave detectors; millimetre wave materials; millimetre wave radar; radar imaging; synthetic aperture radar; 3D image reconstruction; J-Band; W-Band; carbon fibre reinforced plastics; composite material; damage detection; frequency 220 GHz to 325 GHz; frequency 75 GHz to 110 GHz; glass fibre reinforced plastics; glass fibre samples; impact damage analysis; mm wave synthetic aperture radar; phase delay; Carbon; Composite materials; Educational institutions; Phase measurement; Synthetic aperture radar; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on

Conference_Location

Mainz

Type

conf

DOI

10.1109/IRMMW-THz.2013.6665772

Filename

6665772