Journal ArticleDOI
Modeling elastic wave propagation in waveguides with the finite element method
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TLDR
In this article, the authors used a commercial finite element (FE) code to study the propagation characteristics of ultrasonic waves in annular structures and demonstrated the potential of the FE method for problems when an analytical solution is not possible because of complicated component geometry.Abstract:
This paper reports on the application of guided waves techniques to nondestructively determine the structural integrity of engineering components. Specifically, this research uses a commercial finite element (FE) code to study the propagation characteristics of ultrasonic waves in annular structures. In order to demonstrate the accuracy of the proposed FE technique, the propagation of guided waves in a flat plate is examined first. Next, the propagation of guided waves in thick ring structures is investigated. Finally, these FE results are compared to analytical and experimental results. The results of this study clearly illustrate the effectiveness of using the FE method to model guided wave propagation problems and demonstrate the potential of the FE method for problems when an analytical solution is not possible because of “complicated” component geometry.read more
Citations
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A Baseline and Vision of Ultrasonic Guided Wave Inspection Potential
TL;DR: In this article, the authors provide a vision of ultrasonic guided wave inspection potential as we move forward into the new millennium and provide a brief description of the sensor and software technology that will make ultrasonic guidance wave inspection commonplace in the next century.
Journal ArticleDOI
The reflection of the fundamental torsional mode from cracks and notches in pipes
TL;DR: A quantitative study of the reflection of the T(0,1) mode from defects in pipes in the frequency range 10-300 kHz has been carried out, finite element predictions being validated by experiments on selected cases.
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Characterization of impact damage in composite laminates using guided wavefield imaging and local wavenumber domain analysis.
TL;DR: Results show the promise of local wavenumber domain analysis to characterize the depth of delamination damage in composite laminates and can find application in automated vehicle health assurance systems with potential for high detection rates and greatly reduced operator effort and setup time.
Journal ArticleDOI
Modeling guided wave propagation with application to the long-range defect detection in railroad tracks
TL;DR: In this article, the authors demonstrate the use of a commercial finite element package, ABAQUS EXPLICIT, to model ultrasonic guided waves in structural components for high-speed defect detection in railroad tracks.
Journal ArticleDOI
Comparison of different higher order finite element schemes for the simulation of Lamb waves
TL;DR: Higher order finite element methods with polynomial degrees p>2 are proposed and their capabilities are verified to verify their capabilities with respect to accuracy and numerical performance in Structural Health Monitoring applications.
References
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Book
Finite Element Procedures
TL;DR: The Finite Element Method as mentioned in this paper is a method for linear analysis in solid and structural mechanics, and it has been used in many applications, such as heat transfer, field problems, and Incompressible Fluid Flows.
Book
Wave Motion in Elastic Solids
TL;DR: In this article, a comprehensive study of elastic wave propagation in solids is presented, ranging from the theory of waves and vibrations in strings to the three-dimensional theory of elastic waves in thick plates.