Experimental Simultaneous Measurement of Ultrasonic Properties and Thickness for Defect Detection in Curved Polymer Samples

Arciniegas, Andres; Achdjian, Hossep; Bustillo, Julien; Meulen, François Vander; Fortineau, Jérôme

doi:10.1007/s10921-017-0427-3

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…Nevertheless, a few studies have analyzed these kinds of materials using ultrasonic methods, such as [6], who used longitudinal and shear ultrasonic wave velocities in order to calculate the values of the acoustic impedance, Poisson's ratio and elastic constants of epoxy resin/marble powder composites. Indeed, ultrasonic techniques [11] are commonly used in the nondestructive testing of materials because they can be employed both in laboratory and in situ conditions to determine and monitor physical and mechanical properties of materials such as wood [12,13], metals [14,15], polymer/composites [16][17][18] and rocks [19,20]. Several configurations and instrumentations have been developed for ultrasonic testing, such as contact transducers (bulk, shear and wedge), immersion techniques and laser vibrometry [11].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of Engineered Stones Used in Artwork Reproductions: Mechanical Characterization by Laser Vibrometry

et al. 2023

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Many museums have been producing reproductions for several years to replace artworks weakened by outdoor exhibition. Among these, in order to imitate the original aesthetic, the French consortium Réunion des Musées Nationaux–Grand Palais has chosen to work from large-format marble sculpture molds to complex composite materials based on resins comprising mineral fillers. However, similar to the original works of art, these reproductions age and deteriorate due to constant outdoor exposure. For this reason, current research focuses on the preventive conservation and monitoring of the structural health of these reconstructed objects. The goal of this paper was to study the resin/mineral powder composite materials used to produce cultural heritage reproductions of sculptures. This work is oriented toward a comparison of the mechanical properties of composite materials used in the replacement of cultural heritage sculptures (for instance, in the Garden of the Palace of Versailles or the Rodin Museum). The objectives were to first characterize the physical and mechanical properties of these materials in order to identify the most suitable material for cultural heritage reproduction, and secondly, to propose a method with minimal contact that obtained equivalent information as analyses performed with conventional ultrasonic techniques. These nondestructive evaluation techniques could be used for laboratory and in situ analyses. Samples of different polymer/mineral powder filler compositions were analyzed by compressional, shear and surface waves, generated by a 1 MHz center frequency ultrasonic transducer. Firstly, the measurements made it possible to evaluate the velocities of the bulk acoustic waves and extract the Young’s modulus of each tested material. Secondly, in order to have minimal contact with the analyzed structure, a laser interferometry system was used to detect waves at the surface and follow their propagation. The results clearly showed the possibility of using this technique to extract mechanical characteristics of composite materials, allowing for selection of material for the reproduction of large-format statues. For different types of polymer resins, the ability of ultrasonic analysis to track the impact of rock powder (marble or slate) on the mechanical properties of these synthetic materials was clearly observed, proving that this technique holds promise for monitoring the structural health of large-format artwork.

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Section: Introductionmentioning

confidence: 99%

Monitoring of Engineered Stones Used in Artwork Reproductions: Mechanical Characterization by Laser Vibrometry

et al. 2023

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“…Generally speaking, one effective way is to use one or more methods in line with the data fusion technology. It's worth noting that ultrasonic test (UT) [3] is a standardized technique which is applied mostly in the aviation industry. As an important branch of ultrasonic nondestructive test, the phased array ultrasonic test (PAUT) [4][5] is appreciated more and more because of the fast test, multichip probe, real-time color imaging, intuitive testing results and convenient identification of defects.…”

Section: Introductionmentioning

confidence: 99%

Research on 3D Defect Reconstruction in Plate with Phased Array Ultrasonic Test (PAUT)

Zheng

et al. 2022

J. Phys.: Conf. Ser.

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In order to clarify the distribution and shape information of the defects inside the workpiece, it has become a new industrial testing requirement to display the defects more intuitively in three dimensions(3D). In this paper, by introducing 3D volume rendering method, the expansion of PAUT from 2D to 3D is realized. The method is used to reconstruct specific “gu-shaped [[CHECK_DOUBLEQUOT_ENT]] (“Gu” is the Pinyin in Chinese characters, and at the same time, “Gu” is the shape of the defect in the plate discussed in the paper.) defects, and the results of reconstruction are compared with actual defects. By using ultrasonic phased array focusing to detect defect C-scan images of different depths, the collected C-scan images were preprocessed and reconstructed according to the defect contour by volume rendering. The results show that the defect morphology with different depths can be well obtained by focused detection, and the reconstruction effect is good, which is consistent with the actual defect.

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Contact surface fraction evaluation between aluminium and polymer using acoustic reverberation

et al. 2018

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Experimental Simultaneous Measurement of Ultrasonic Properties and Thickness for Defect Detection in Curved Polymer Samples

Cited by 8 publications

References 23 publications

Monitoring of Engineered Stones Used in Artwork Reproductions: Mechanical Characterization by Laser Vibrometry

Monitoring of Engineered Stones Used in Artwork Reproductions: Mechanical Characterization by Laser Vibrometry

Research on 3D Defect Reconstruction in Plate with Phased Array Ultrasonic Test (PAUT)

Contact surface fraction evaluation between aluminium and polymer using acoustic reverberation

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