Ultrasonic field profile evaluation in acoustically inhomogeneous anisotropic materials using 2D ray tracing model: Numerical and experimental comparison

Kolkoori, Sanjeevareddy; Rahman, Mehbub-Ur; Chinta, P. K.; Ktreutzbruck, M.; Rethmeier, Michael; Prager, Jens

doi:10.1016/j.ultras.2012.07.006

Cited by 24 publications

(14 citation statements)

References 29 publications

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“…where V n is the excitation signal of the array element, x and t represent the spatial position and time, respectively, c is the 2 Journal of Sensors sound velocity of the medium, and S T is the array element's area [10,11]. The spatial focusing acoustic field of the ultrasonic annular array transducer is shown in Figure 2.…”

Section: Influence Of Transducer Parameters Onmentioning

confidence: 99%

Variable Aperture Method of Ultrasonic Annular Array for the Detection of Addictive Manufacturing Titanium Alloy

Chang

et al. 2020

Journal of Sensors

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The ultrasonic annular array transducer usually has a stronger focusing acoustic field than the linear array and matrix transducer with the same number of array elements, and is more suitable for the detection of large thickness and high attenuation components. However, due to the special arrangement of array elements, the focusing beam cannot be deflected and has a large near field, which limits its application in practical detection. The element parameters of annular array transducer are often designed and analyzed according to the 2-D acoustic field model of a linear array transducer. Therefore, the 3-D acoustic field distribution model of the annular array transducer is established, and the influence of the element parameters on its spatial acoustic field focusing characteristics is analyzed. The design criteria of the array element division mode and element size are proposed, which can avoid the generation of high-energy side lobe and grating lobe, and have good axial acoustic field. Then, the influence of excitation aperture on the energy and size of focal spot at different depths is discussed. The dynamic focusing method with variable aperture of annular array is established, and the C-scan detection experiment is carried out on the addictive manufacturing titanium alloy specimen. The detection results show that the variable aperture method has better central amplitude consistency and imaging accuracy for different depth defects, and has better near surface detection ability than the fixed aperture method.

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Section: Influence Of Transducer Parameters Onmentioning

confidence: 99%

Variable Aperture Method of Ultrasonic Annular Array for the Detection of Addictive Manufacturing Titanium Alloy

Chang

et al. 2020

Journal of Sensors

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“…[11][12][13][14][15] To simulate wave propagation within materials, the speed and wavelength of the propagating wave is used, which can be determined using analytical models or experiments. Ray tracing in various forms have been used in cases of two-dimensional (2D) [16][17][18][19][20][21][22] and three-dimensional (3D) 12,[23][24][25][26][27][28][29][30][31] geometries for modeling wave propagation within the material.…”

Section: Approaches For Near To Real Time Simulationmentioning

confidence: 99%

“…[32][33][34][35][36] Driven by progress in computational methods and electronics, analytical and exact models for performing the simulation tasks exist but their solutions are limited to either simple-shaped structures or artificial damages. The ray tracing method for bulk waves in 2D and 3D has been studied extensively by Ogilvy 23 and Kolkoori et al 17 There are different numerical tools available for modeling Lamb wavebased SHM systems such as the finite element method (FEM), finite difference method (FDM), elastic finite integration technique (EFIT), and spectral FEM (SFEM). The application of FEM and FDM for SHM in plates by Xu et al has been published in the literature.…”

Section: Ultrasonic Guided Wave Modeling With Ray Tracing In Fe Frameworkmentioning

confidence: 99%

“…The ray tracing technique applicable for a 3D isotropic medium has been discussed by Kulowski 42 where sound wave propagation in air is presented. The ray tracing algorithm has been already implemented for NDT and NDE applications by different authors, 11,17,23,24,38,42,43 and there are various commercial tools available in the market as referenced in Table 1. 43 Within this context, 3D-CAD-Ray-SAFT is a raytracing software which has been developed by Schmitz et al 24 for the analysis of automated ultrasonic inspection results.…”

Section: Ultrasonic Guided Wave Modeling With Ray Tracing In Fe Frameworkmentioning

confidence: 99%

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Integration of Non-Destructive Evaluation-based Ultrasonic Simulation: A means for simulation in structural health monitoring

Boller

Mahapatra

Venkat

et al. 2017

Structural Health Monitoring

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Simulation has become a prerequisite in engineering and science today for visualization of ideas and concepts. In nondestructive evaluation, simulation is increasingly used to show how an inspection method functions with regard to the component to be inspected and is even used for determining the probability of detection of a respective flaw with regard to the inspection method applied. Probability of detection in non-destructive evaluation is optimized in a way that the best sensor positions, as well as sensor tracking paths, can be found through simulation. In classical non-destructive evaluation, a transducer or transducer array can be virtually moved over the surface of a component to be inspected until a full capture of the component's surface and hopefully volume is achieved in terms of the inspection process. However, with structural health monitoring, no movement of the transducers is possible in case those become an integral and hence fixed part of the component considered. Determining the optimum position of a respective structural health monitoring transducer network can therefore only be achieved through optimization procedures, where numerical simulation is possibly the only viable solution to get this done. Establishing a numerical simulation platform for structural health monitoring purposes has been the major objective of the recently completed INDEUS (Integration of Non-Destructive Evaluation-based Ultrasonic Simulation) project, which is described in this article. The open simulation platform includes different simulation tools, where the requirements and options for further extension of those tools and different test cases applied for validation so far are described. The target is to even simulate real complex structures such as applied in civil, aeronautical, and other engineering disciplines made of metallic and polymer-based monolithic and composite materials where the digital models are inherited from traditional computer-aided design and finite element-based designs. This lays the ground for determining the probability of damage for a given loading condition and structure, and the propagation of guided waves in the structure considered for an undamaged and a damage tolerant condition. From those simulation results, the determination of an optimum configuration of sensing transducers for a given set of actuating transducers is then shown for a guided wave-based structural health monitoring system solution to be designed allowing the tolerable damage to be detected reliably.

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“…The main challenge is to adapt the probe to the material and the dimension of the block under inspection to reach the required sensitivity and resolution for the detection of cracks or other defects. Ultrasound beam computation is a critical step in the design process (Generazio & Harris, 1999) and depends on the size and the geometry of the emitting element, has been widely studied and can be computed through several methods, such as finite element (Chassignole et al, 2009) or ray tracing (Kolkoori et al, 2013). The ultrasonic testing sensitivity depends on the energy reflected from the flaws relative to a calibration (Cheeke, 2012).…”

Section: Introductionmentioning

confidence: 99%

Phased array probe for the inspection of large steel forgings

Dupont-Marillia

Jahazi²,

Bélanger³

2021

Cogent Engineering

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Reliable inspection of large steel forgings is a significant problem across multiple industries. When the dimensions of forgings are at least 1000 mm in each direction, ultrasonic phased array inspection becomes difficult because conventional probes are not designed to transmit and focus acoustic energy over such large distances. Using simulations and experiments, this article aims to discuss the possibilities and limitations of phased array imaging of large forged steel ingots. Simulations were used to design a transducer based on the reflected amplitude, as well as the lateral and axial resolutions of defects in a 1000 mm thick block. It was shown that when limiting the aperture to allow easy handling in an industrial inspection setting, the lateral resolution and the reflected amplitude were the main limitations. Increasing the element width maximizes the energy transmitted into the material, but it also moves elements away from each other, thus reducing the lateral resolution. Based on the simulations, an experimental phased array transducer was manufactured with eight elements of 9.25 × 22.5 mm. The probe was used to perform measurements and generate total focusing method images of three different at a depth of 370 mm in a 776 mm forged steel block.

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Ultrasonic field profile evaluation in acoustically inhomogeneous anisotropic materials using 2D ray tracing model: Numerical and experimental comparison

Cited by 24 publications

References 29 publications

Variable Aperture Method of Ultrasonic Annular Array for the Detection of Addictive Manufacturing Titanium Alloy

Variable Aperture Method of Ultrasonic Annular Array for the Detection of Addictive Manufacturing Titanium Alloy

Integration of Non-Destructive Evaluation-based Ultrasonic Simulation: A means for simulation in structural health monitoring

Phased array probe for the inspection of large steel forgings

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