Accurate ultrasonic measurement technique for crack sizing using envelope detection and differential evolution
Source abstract
Abstract
Abstract In this paper, an ultrasonic non-destructive measurement technique is proposed to detect and size cracks in engineering materials. This measurement technique is based on Time of Flight Diffraction (TOFD) permitting the detection and location of cracks employing the compression waves diffraction phenomena. Then, the cracks are sized by the estimation of Time of Flight (TOF) of the diffracted waves. In the simulation and experimental investigations, the TOFs are estimated in two steps, the first step is the envelope extraction by Hilbert Transform (HT). The second step is the envelope estimation using a Matching Pursuit (MP) approach optimized by Differential Evolution (DE) in order to reach fast and accurate results. Consequently, the estimation results confirm the efficiency of the proposed measurement technique, which can be considered as an encouraging method for crack sizing in industrial materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ultrasonics and Acoustic Wave Propagation · Non-Destructive Testing Techniques · Structural Health Monitoring Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
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