Non-contact Guided Wave Excitation in Composite Plate by the Ultrasound Transmitter

2018 ◽  
Author(s):  
Michal Jurek ◽  
Pawel Kudela ◽  
Maciej Radzienski ◽  
Wieslaw Ostachowicz
Keyword(s):  
Composite Plate ◽  
Guided Wave ◽  
Wave Excitation ◽  
Ultrasound Transmitter

COMPOSITE PLATE INSPECTION USING A NOVEL GUIDED WAVE SKEW EFFECT METHOD

2009 ◽  
Author(s):  
Fei Yan ◽  
Joseph L. Rose ◽  
Donald O. Thompson ◽  
Dale E. Chimenti
Keyword(s):  
Composite Plate ◽  
Guided Wave ◽  
Effect Method

Research and Application of Ultrasonic Guided Wave With L(0,2) Mode for Elbow Tube Defect Inspection

2018 ◽  
Author(s):  
Ju Ding ◽  
Min Zhang ◽  
Shu-Hong Liu ◽  
Chen-huai Tang ◽  
Jie-Lu Wang ◽  
...  
Keyword(s):  
Guided Wave ◽  
Test Results ◽  
Wave Excitation ◽  
Defect Inspection ◽  
Long Distance ◽  
Pipeline Inspection ◽  
Type Wave ◽  
Sensor Arrangement ◽  
Pipe Elbow ◽  
Ultrasonic Guided Wave

Ultrasonic guided wave inspection technology has been widely for long distance pipeline inspection; however, the pipe elbow’s discontinuous structure and the dispersion of L-type wave are restricting the application of this technology. This paper proposes a method of L(0,2) mode guided wave excitation based on magnetostrictive effect and explores the optimization of the magnetization sensor arrangement. Test results shows that the proposed method can detect many types of defects in the pipe elbow. This paper encourages the use of L(0,2) mode guided wave excitation based on magnetostrictive effect in pipeline site inspections.

Thermosonic Testing with Phase Matched Guided Wave Excitation

2016 ◽  
Vol 35 (3) ◽  
Author(s):  
Markus Rahammer ◽  
Igor Solodov ◽  
Wolfgang Bisle ◽  
Dieter Scherling ◽  
Marc Kreutzbruck
Keyword(s):  
Guided Wave ◽  
Wave Excitation

scholarly journals 3D Modelling of the Scattering of the Fundamental Anti-Symmetric Lamb Mode (A0) Propagating within a Point-Impacted Transverse-Isotropic Composite Plate

2021 ◽  
Vol 11 (16) ◽  
pp. 7276
Author(s):  
Dilbag Singh ◽  
Mourad Bentahar ◽  
Charfeddine Mechri ◽  
Rachid El Guerjouma
Keyword(s):  
Composite Plate ◽  
Impact Damage ◽  
Elastic Stiffness ◽  
Wave Mode ◽  
Guided Wave ◽  
Domain Model ◽  
Isotropic Composite ◽  
Damaged Zone ◽  
The Impact ◽  
Lamb Mode

The present paper deals with an effort to model impact damage in 3D-FE simulation. In this work, we studied the scattering behavior of an incident A0 guided wave mode propagating towards an impacted damaged zone created within a quasi-isotropic composite plate. Besides, barely visible impact damage of the desired energy was created and imaged using ultrasonic bulk waves in order to measure the size of the damage. The 3D-FE frequency domain model is then used to simulate the scattering of an incident guided wave at a frequency below an A1 cut-off with a wavelength comparable to the size of the damaged zone. The damage inside the plate is modeled as a conical-shaped geometry with decayed elastic stiffness properties. The model was first validated by comparing the directivity of the scattered fields for the A0 Lamb mode predicted numerically with the experimental measurements. The modeling of the impact zone with conical-shape geometry showed that the scattering directivity of the displacement field depends significantly on the size (depth and width) of the conical damage created during the point-impact of the composite with potential applications allowing the determination of the geometric characteristics of the impacted areas.

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