The quasi-harmonic ultrasonic polar scan for material characterization: Experiment and numerical modeling

Kersemans, Mathias; Martens, Arvid; Abeele, Koen Van Den; Degrieck, Joris; Pyl, Lincy; Zastavnik, Filip; Sol, Hugo; Paepegem, Wim Van

doi:10.1016/j.ultras.2015.01.002

Cited by 10 publications

(17 citation statements)

References 28 publications

(39 reference statements)

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“…Secondly, a simulation technique has been implemented to support experimental observations [15]. The simulation model is founded on a transfer matrix technique [16][17][18], and allows the simulation of UPS for immersed layered viscoelastic anisotropic media.…”

Section: The Ultrasonic Polar Scan Revisitedmentioning

confidence: 99%

“…This has led us to the experimental and numerical investigation of a harmonic version of the ultrasonic polar scan (H-UPS) [15]. In Figure 6, a comparison is shown between P-UPS (broadband wave with central frequency f c = 5 MHz) and H-UPS (harmonic wave with frequency f = 5 MHz) recordings of a [0˝] 8 C/E laminate.…”

Section: Harmonic Ultrasonic Polar Scanmentioning

confidence: 99%

“…This is easily understood considering that the H-UPS image puts on view the stimulation condition of dispersive, i.e., frequency dependent, Lamb waves, while the P-UPS image is mainly governed by bulk wave characteristics [2,15,23].…”

Section: Harmonic Ultrasonic Polar Scanmentioning

confidence: 99%

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The Ultrasonic Polar Scan for Composite Characterization and Damage Assessment: Past, Present and Future

et al. 2016

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Abstract:In the early 1980's, the ultrasonic polar scan (UPS) technique was developed to assess the fiber direction of composites in a nondestructive way. In spite of the recognition by several researchers as being a sophisticated and promising methodology for nondestructive testing (NDT) and materials science, little advance was made during the following 30 years. Recently however, the UPS technique experienced a strong revival and various modifications to the original UPS setup have been successfully implemented. This revival has exposed several powerful capabilities and interesting applications of the UPS technique for material characterization and damage assessment. This paper gives a short historical overview of the UPS technique for characterizing and inspecting (damaged) fiber-reinforced plastics. In addition, a few future research lines are given, which will further expand the applicability and potential of the UPS method to a broader range of (damaged) materials, bringing the UPS technique to the next level of maturity.

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Section: The Ultrasonic Polar Scan Revisitedmentioning

confidence: 99%

Section: Harmonic Ultrasonic Polar Scanmentioning

confidence: 99%

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The Ultrasonic Polar Scan for Composite Characterization and Damage Assessment: Past, Present and Future

et al. 2016

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“…In this way, we obtain high-quality experiments which has led to the identification of several experimental pitfalls which basically prevented the further advancement of the UPS research [8]. The exceptional quality of our experimental recordings may be seen in Secondly, we implemented a simulation technique to support experimental observations [9]. The simulation model is founded on a cascade matrix technique [10], and is fully applicable to simulate UPS of immersed layered viscoelastic anisotropic media.…”

Section: Revisiting the Ultrasonic Polar Scanmentioning

confidence: 99%

“…This has led us to the experimental and numerical investigation of harmonic ultrasonic polar scans (H-UPS) in which quasiharmonic bursts are employed [9]. In Figure 4a, the H-UPS recording of a [0°] 8 C/E laminate is shown.…”

Section: Harmonic Ultrasonic Polar Scan (H-ups)mentioning

confidence: 99%

Recent Advances in the Ultrasonic Polar Scan Method for Characterizing (Degraded) Fiber Reinforced Plastics

Kersemans¹,

Martens²,

Paepegem³

et al. 2015

Structural Health Monitoring 2015

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Identification of the Elastic Properties of Isotropic and Orthotropic Thin-Plate Materials with the Pulsed Ultrasonic Polar Scan

et al. 2014

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Already in the early 1980's, it has been conjectured that the pulsed ultrasonic polar scan (P-UPS) provides a unique fingerprint of the underlying mechanical elasticity tensor at the insonified material spot. Until now, that premise has not been thoroughly investigated, nor validated, despite the opportunities this would create for NDT and materials science in general. In this paper, we report on the first-ever implementation of an inverse modeling technique on the basis of a genetic optimization scheme in order to extract quantitative information from a P-UPS. We validate the optimization approach for synthetic data, and apply it to experimentally obtained polar scans for annealed aluminum, cold rolled DC-06 steel as well as for carbon fiber reinforced plastics. The investigated samples are plate-like and do not require specific preparation. The inverted material characteristics show good agreement with literature, micro-mechanical models as well as with results obtained through conventional testing procedures.

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The quasi-harmonic ultrasonic polar scan for material characterization: Experiment and numerical modeling

Cited by 10 publications

References 28 publications

The Ultrasonic Polar Scan for Composite Characterization and Damage Assessment: Past, Present and Future

The Ultrasonic Polar Scan for Composite Characterization and Damage Assessment: Past, Present and Future

Recent Advances in the Ultrasonic Polar Scan Method for Characterizing (Degraded) Fiber Reinforced Plastics

Identification of the Elastic Properties of Isotropic and Orthotropic Thin-Plate Materials with the Pulsed Ultrasonic Polar Scan

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