Acoustic Emission Characterization of Transgranular Cracks in WC–Co Cemented Carbides During a One-way Scratch

Yahiaoui, Malik; Marconnet, M.; Jlaiel, Khouloud; Paris, Jean-Yves; Denape, Jean

doi:10.1007/s11249-021-01509-8

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…Figure 18 shows the resulting plots for this frequency window. The centroid frequency feature, the center of mass of the frequency distribution, which has found interest in the study of AE signals for damage assessment [45] and structural health monitoring, was extracted as a parameter of interest. The results revealed an increasing trend in this characteristic parameter, indicating changes in structural properties.…”

Section: Numerical Analysismentioning

confidence: 99%

Integration Technology with Thin Films Co-Fabricated in Laminated Composite Structures for Defect Detection and Damage Monitoring

Langat,

De Luycker,

Cantarel

et al. 2024

Micromachines

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Despite the well-established nature of non-destructive testing (NDT) technologies, autonomous monitoring systems are still in high demand. The solution lies in harnessing the potential of intelligent structures, particularly in industries like aeronautics. Substantial downtime occurs due to routine maintenance, leading to lost revenue when aircraft are grounded for inspection and repairs. This article explores an innovative approach using intelligent materials to enhance condition-based maintenance, ultimately cutting life-cycle costs. The study emphasizes a paradigm shift toward structural health monitoring (SHM), utilizing embedded sensors for real-time monitoring. Active thin film piezoelectric materials are proposed for their integration into composite structures. The work evaluates passive sensing through acoustic emission (AE) signals and active sensing using Lamb wave propagation, presenting amplitude-based and frequency domain approaches for damage detection. A comprehensive signal processing approach is presented, and the damage index and damage size correlation function are introduced to enable continuous monitoring due to their sensitivity to changes in material properties and defect severity. Additionally, finite element modeling and experimental validation are proposed to enhance their understanding and applicability. This research contributes to developing more efficient and cost-effective aircraft maintenance approaches through SHM, addressing the competitive demands of the aeronautic industry.

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Section: Numerical Analysismentioning

confidence: 99%

Integration Technology with Thin Films Co-Fabricated in Laminated Composite Structures for Defect Detection and Damage Monitoring

Langat,

De Luycker,

Cantarel

et al. 2024

Micromachines

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“…The formation and growth of microcracks, interface bond breaking, and delamination of thin films are typical examples of phenomena which produce acoustic emissions. Employment of acoustic wave sensors makes it possible to acquire interesting data regarding the various processes that occur during indentation or scratch testing [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Determination of surface properties of treated cement pastes by acoustic methods and scratch test - pilot experiments

Topolář

Kalina²,

Kocáb³

et al. 2022

MATEC Web Conf.

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The concrete has been and at the same time will be the most used construction material worldwide. It is exposed to various physical and chemical degradation processes that deteriorate its properties and shorten its service life in most applications. As most of the detrimental effects on concrete come from the ambient environment, the quality of concrete surface plays a key role in the overall concrete performance. It should be resistant to abrasion, free of microcracks and open pores to prevent ingress of water, aggressive solutions, and gases. To enhance the properties of the concrete surface, various approaches can be used. The treatment via silicate-based sealers is becoming increasingly popular in concrete technology, especially in preventing deterioration when exposed to highly aggressive environments. This contribution focuses on applying unconventional test methods (e.g. combined scratch/acoustic emission method) to detect the fundamental properties of the treated cementitious surfaces will also provide a new perspective approach of material testing, which may be in the future advantageously used in technical practice. The present combined scratch/acoustic emission test evaluation will provide an excellent insight into lithium silicate sealers’ physical behaviour on fine-grained cement-based materials during this test.

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Characterization of bulk metallic glasses by microscratch test under Rockwell C diamond indenter and progressive normal load

Liu

2023

Engineering Fracture Mechanics

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Acoustic Emission Characterization of Transgranular Cracks in WC–Co Cemented Carbides During a One-way Scratch

Cited by 4 publications

References 13 publications

Integration Technology with Thin Films Co-Fabricated in Laminated Composite Structures for Defect Detection and Damage Monitoring

Integration Technology with Thin Films Co-Fabricated in Laminated Composite Structures for Defect Detection and Damage Monitoring

Determination of surface properties of treated cement pastes by acoustic methods and scratch test - pilot experiments

Characterization of bulk metallic glasses by microscratch test under Rockwell C diamond indenter and progressive normal load

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