A novel optical air-coupled ultrasound NDE sensing technique compared with infrared thermographic NDT on impacted composite materials

In this paper, a novel optical air-coupled ultrasound (O-ACU) technique is proposed. A wide broadband (100 KHz - 1 MHz) laser-acoustic based optical microphone worked as probe in an air-coupled ultrasound (ACU) system. The O-ACU modality was used to detect several CFRP and GFRP impacted laminates and the results were compared with the classical ACU modality. Infrared thermography, as an established reference technique, was used for the validation. Advanced image processing techniques were applied. Conclusively, O-ACU shows an obvious improvement in sensibility and resolution.

[1]  Clemente Ibarra-Castanedo,et al.  Eddy current pulsed thermography for ballistic impact evaluation in basalt-carbon hybrid composite panels. , 2018, Applied optics.

[2]  H. Mooshofer,et al.  Advances in air-coupled ultrasonic testing combining an optical microphone with novel transmitter concepts , 2018 .

[3]  Yunze He,et al.  Eddy current pulsed phase thermography for subsurface defect quantitatively evaluation , 2013 .

[4]  Yunlong Sheng,et al.  An experimental and analytical study of micro-laser line thermography on micro-sized flaws in stitched carbon fiber reinforced polymer composites , 2016 .

[5]  Xavier Maldague,et al.  Theory and Practice of Infrared Technology for Nondestructive Testing , 2001 .

[6]  Stefano Sfarra,et al.  Comparative analysis on Thermal Non-Destructive Testing Imagery applying Candid Covariance-Free Incremental Principal Component Thermography (CCIPCT) , 2017 .

[7]  R. Ghys.  [Infrared thermography]. , 1970, Les cahiers du nursing.

[8]  Wai Lok Woo,et al.  Physics-Based Image Segmentation Using First Order Statistical Properties and Genetic Algorithm for Inductive Thermography Imaging , 2017, IEEE Transactions on Image Processing.

[9]  Yunze He,et al.  Volume or inside heating thermography using electromagnetic excitation for advanced composite materials , 2017 .

[10]  Kiarash Ahi,et al.  Mathematical Modeling of THz Point Spread Function and Simulation of THz Imaging Systems , 2017, IEEE Transactions on Terahertz Science and Technology.

[11]  Clemente Ibarra-Castanedo,et al.  Comparative study on submillimeter flaws in stitched T-joint carbon fiber reinforced polymer by infrared thermography, microcomputed tomography, ultrasonic c-scan and microscopic inspection , 2015 .

[12]  Xavier Maldague,et al.  How to reveal subsurface defects in Kevlar® composite materials after an impact loading using infrared vision and optical NDT techniques? , 2013 .

[13]  Clemente Ibarra-Castanedo,et al.  Optical and Mechanical Excitation Thermography for Impact Response in Basalt-Carbon Hybrid Fiber-Reinforced Composite Laminates , 2018, IEEE Transactions on Industrial Informatics.

[14]  Kiarash Ahi,et al.  Quality control and authentication of packaged integrated circuits using enhanced-spatial-resolution terahertz time-domain spectroscopy and imaging , 2017 .

[15]  Xavier Maldague,et al.  Non-destructive Investigation of Paintings on Canvas by Continuous Wave Terahertz Imaging and Flash Thermography , 2017, Journal of Nondestructive Evaluation.

[16]  Nik Rajic,et al.  Principal component thermography for flaw contrast enhancement and flaw depth characterisation in composite structures , 2002 .

[17]  Stefano Sfarra,et al.  Thermal NDT applying Candid Covariance-Free Incremental Principal Component Thermography (CCIPCT) , 2017, Commercial + Scientific Sensing and Imaging.

[18]  Kiarash Ahi,et al.  Review of GaN-based devices for terahertz operation , 2017 .

[19]  Hai Zhang,et al.  Enhanced Infrared Image Processing for Impacted Carbon/Glass Fiber-Reinforced Composite Evaluation , 2018, Sensors.

[20]  Xavier Maldague,et al.  Optical excitation thermography for twill/plain weaves and stitched fabric dry carbon fibre preform inspection , 2018 .

[21]  Clemente Ibarra-Castanedo,et al.  Comparative study of microlaser excitation thermography and microultrasonic excitation thermography on submillimeter porosity in carbon fiber reinforced polymer composites , 2016 .

[22]  S. Marinetti,et al.  Pulse phase infrared thermography , 1996 .

[23]  Bardia Yousefi,et al.  Automatic IRNDT inspection applying sparse PCA-based clustering , 2017, 2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE).

[24]  Yunze He,et al.  Multidimensional Tensor-Based Inductive Thermography With Multiple Physical Fields for Offshore Wind Turbine Gear Inspection , 2016, IEEE Transactions on Industrial Electronics.

[25]  Kiarash Ahi.  Lithography, Spectroscopy, and Super Resolution Terahertz Imaging for Quality Assurance and Authentication , 2017 .