scholarly journals Phased array beamforming and imaging in composite laminates using guided waves

2016 ◽  
Author(s):  
Zhenhua Tian ◽  
Cara A. C. Leckey ◽  
Lingyu Yu
Keyword(s):  
Composite Laminates ◽  
Guided Waves ◽  
Phased Array ◽  
Array Beamforming

Ultrasonic reflection and guided waves in fluid-coupled composite laminates

1990 ◽  
Vol 9 (2-3) ◽  
pp. 51-69 ◽  
Author(s):  
D. E. Chimenti ◽  
Adnan H. Nayfeh
Keyword(s):  
Composite Laminates ◽  
Guided Waves

scholarly journals Limitations of Phased Array Beamforming in Open Rotor Noise Source Imaging

AIAA Journal ◽  
2014 ◽  
Vol 52 (8) ◽  
pp. 1810-1817 ◽  
Author(s):  
Csaba Horváth ◽  
Edmane Envia ◽  
Gary G. Podboy
Keyword(s):  
Phased Array ◽  
Noise Source ◽  
Source Imaging ◽  
Rotor Noise ◽  
Open Rotor ◽  
Array Beamforming

Fiber bragg grating based detection of part-thickness cracks in bent composite laminates using feature-guided waves

2019 ◽  
Vol 28 (8) ◽  
pp. 085026 ◽  
Author(s):  
Pabitro Ray ◽  
Xudong Yu ◽  
Zheng Fan ◽  
Balaji Srinivasan ◽  
Prabhu Rajagopal
Keyword(s):  
Fiber Bragg Grating ◽  
Composite Laminates ◽  
Guided Waves ◽  
Bragg Grating ◽  
Part Thickness

scholarly journals Numerical Investigation of Excitation of Various Lamb Waves Modes in Thin Plastic Films

2022 ◽  
Vol 12 (2) ◽  
pp. 849
Author(s):  
Rymantas Jonas Kazys ◽  
Justina Sestoke ◽  
Egidijus Zukauskas
Keyword(s):  
Numerical Investigation ◽  
Lamb Wave ◽  
Guided Waves ◽  
Phased Array ◽  
Ultrasonic Transducer ◽  
Guided Wave ◽  
Ultrasonic Guided Waves ◽  
Plastic Films ◽  
Thin Plastic ◽  
Wave Modes

Ultrasonic-guided waves are widely used for the non-destructive testing and material characterization of plates and thin films. In the case of thin plastic polyvinyl chloride (PVC), films up to 3.2 MHz with only two Lamb wave modes, antisymmetrical A0 and symmetrical S0, may propagate. At frequencies lower that 240 kHz, the velocity of the A0 mode becomes slower than the ultrasonic velocity in air which makes excitation and reception of such mode complicated. For excitation of both modes, we propose instead a single air-coupled ultrasonic transducer to use linear air-coupled arrays, which can be electronically readjusted to optimally excite and receive the A0 and S0 guided wave modes. The objective of this article was the numerical investigation of feasibility to excite different types of ultrasonic-guided waves, such as S0 and A0 modes in thin plastic films with the same electronically readjusted linear phased array. Three-dimensional and two-dimensional simulations of A0 and S0 Lamb wave modes using a single ultrasonic transducer and a linear phased array were performed. The obtained results clearly demonstrate feasibility to excite efficiently different guided wave modes in thin plastic films with readjusted phased array.

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