Proof of concept for a smart composite orbital debris detector

Simone, Mario Emanuele De; Andreades, Christos; Hilmi, Amin Mohamad; Meo, Michele; Ciampa, Francesco

doi:10.1016/j.actaastro.2019.02.024

Cited by 9 publications

(2 citation statements)

References 35 publications

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“…Direct detection of impact by AE is also performed, e.g., on Charpy-type specimens by [169] or during drop tests [145]. An application of AE developed for debris impact on spacecraft is described by [170]. Depending on the energy of the impact, coupling of conventional piezoceramic AE sensors may be difficult, but AE signals from impact can also be detected by other strain sensing systems, such as Fiber Bragg Gratings (FBG), see, e.g., [171] for details.…”

Section: Lab Scale Testingmentioning

confidence: 99%

AE in Polymeric Composites

Sause

Brunner

2021

Springer Tracts in Civil Engineering

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Polymeric composites comprise a wide range of materials consisting of continuous or discontinuous fibers, various particles, or combinations of these embedded in a polymer matrix. Beside technical polymer composites, biobased composites with biopolymers or natural fibers, or natural polymer composites such as wood are finding increasing use in structural applications. The complex, multi-scale morphology yields distinctly different mechanisms generating AE under thermo-mechanical loads or environmental exposure. Storage tanks and pressure vessels made from fiber-reinforced composites were among the first components for which AE testing yielded reliable assessments of structural integrity. The empirical Felicity-ratio is important for quantitative predictions of structural damage and remaining service life. Recent advances in AE signal analysis now contribute to improved source location accuracy and to the unambiguous identification of the underlying microscopic signal source mechanisms. AE testing of infrastructure and components tends to move from periodic inspection to continuous structural health or condition monitoring. This also applies to infrastructure made from polymeric composites as well as to structures or parts in the transportation industry. AE implemented for process monitoring related to polymeric composites shows potential for development of AEbased process control. This chapter first reviews the mechanisms generating AE in polymeric composites, then discusses progress in AE signal analysis for source location and identification of mechanisms and presents selected examples of established AE applications from the micro-to the macro-scale. This includes prediction and quantification of damage in materials and structures, and closes with prospects for developments of AE condition monitoring and process control.

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Section: Lab Scale Testingmentioning

confidence: 99%

AE in Polymeric Composites

Sause

Brunner

2021

Springer Tracts in Civil Engineering

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show abstract

“…Another category of SHM methods is that of delay-and-sum beamforming [28][29][30][31][32][33][34], where the energy of scattered waves was delayed and summed to form images of scatter locations, based on a delay law defined by the geometry of the specific application, as well as the propagation mode and group velocity of the waves. Moreover, other methods applied the concept of time-reversal [35][36][37][38][39][40][41]. Briefly, the signals generated from a source were captured in different paths within a sensor network, and the acquired waveforms are then focused on the source by reversing them in time and re-transmitting them backwards through the material.…”

Section: Introductionmentioning

confidence: 99%