Interaction of Guided Waves with Delamination in a Bilayered Aluminum-Composite Pressure Vessel

Parodi, Mauro; Fiaschi, Cosima; Memmolo, Vittorio; Ricci, Fabrizio; Maio, Leandro

doi:10.1007/s11665-019-04105-z

Cited by 27 publications

(10 citation statements)

References 40 publications

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“…Figure 2. Schematization of the overall experimental setup adopted for wave propagation analysis [16].…”

Section: Methodsmentioning

confidence: 99%

“…However, according to the specific wave mode adopted, wave energy can be focused mostly in a certain layer, whose damage can be eventually detected appropriately [ 15 ]. Otherwise, the scattering behavior can be observed to detect and estimate the size of the damage at the interface [ 16 ]. Nonetheless, a step further is needed to move from theoretical wave propagation in multilayered COPV to damage detection.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Damage in Composite Pressure Vessels Using Guided Waves

Memmolo

Maio

Ricci

2022

Sensors

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This paper deals with guided wave-based structural health monitoring of composite overwrapped pressure vessels adopted for space application. Indeed, they are well suited for this scope thanks to their improved performance compared with metallic tanks. However, they are characterized by a complex damage mechanics and suffer from impact induced damage, e.g., due to space debris. After reviewing the limited progress in this specific application, the paper thoroughly covers all the steps needed to design and verify guided wave structural health monitoring system, including methodology, digital modelling, reliability, and noise estimation for a correct decision-making process in a virtual environment. In particular, propagation characteristics of the fundamental anti-symmetric mode are derived experimentally on a real specimen to validate a variety of finite element models useful to investigate wave interaction with damage. Different signal processing techniques are demonstrated sensitive to defect and linearly dependent upon damage severity, showing promising reliability. Those features can be implemented in a probability-based diagnostic imaging in order to detect and localized impact induce damage. A multi-parameter approach is achieved by metrics fusion demonstrating increased capability in damage detection with promising implication in enhancing probability of detection.

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“…Figure 2. Schematization of the overall experimental setup adopted for wave propagation analysis [16].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Damage in Composite Pressure Vessels Using Guided Waves

Memmolo

Maio

Ricci

2022

Sensors

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“…Indeed, further critical tasks are needed once diagnosis is achieved. In addition, different stages can be identified, and likewise different methodologies can be adopted to perform those tasks [ 47 , 48 , 49 ]. Generally, the underlying concept in SHM is to record and store the structural response after a diagnostic or ambient excitation, post-process current dataset looking for features sensitive to any defect and relate such parameters to damage characteristics [ 50 , 51 , 52 ].…”

Section: Methodsmentioning

confidence: 99%

Impact of Structural Health Monitoring on Aircraft Operating Costs by Multidisciplinary Analysis

Cusati

Corcione

Memmolo

2021

Sensors

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Structural health monitoring is recognized as a viable solution to increase aviation safety and decrease operating costs enabling a novel maintenance approach based on the actual condition of the airframe, mitigating operating costs induced by scheduled inspections. However, the net benefit is hardly demonstrated, and it is still unclear how the implementation of such an autonomic system can affect performance at aircraft level. To close this gap, this paper presents a systematic analysis where the impact of cost and weight of integrating permanently attached sensors—used for diagnostics- affect the main performance of the aircraft. Through a multidisciplinary aircraft analysis framework, the increment of aircraft operating empty weight is compared with the possible benefits in terms of direct operating costs to identify a breakeven point. Furthermore, the analysis allows to establish a design guideline for structural health monitoring systems returning a safer aircraft without any economic penalties. The results show that the operating costs are lower than those of the reference aircraft up to 4% increase in maximum take-off weight. Paper findings suggest to considering a condition monitoring strategy from the conceptual design stage, since it could maximize the impact of such innovative technology. However, it involves in a design of a brand-new aircraft instead of a modification of an existing one.

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“…This process is time consuming and expensive, making necessary a detailed scheduling and preventing on-demand inspections. The implementation of an SHM system could improve such a situation due to the permanently attached transducers allowing structure interrogations as often as needed even when and where the accessibility is not possible [153,154]. The potential benefits introduced by operating SHM within aircraft inspections are detailed in the next section, where specific examples are given to justify the cost benefits achievable by introducing condition-based monitoring with integrated structures.…”

Section: Composite Damage Tolerant Approachmentioning

confidence: 99%

The Enabling Technologies for a Quasi-Zero Emissions Commuter Aircraft

et al. 2022

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The desire for greener aircraft pushes both academic and industrial research into developing technologies, manufacturing, and operational strategies providing emissions abatement. At time of writing, there are no certified electric aircraft for passengers’ transport. This is due to the requirements of lightness, reliability, safety, comfort, and operational capability of the fast air transport, which are not completely met by the state-of-the-art technology. Recent studies have shown that new aero-propulsive technologies do not provide significant fuel burn reduction, unless the operational ranges are limited to short regional routes or the electric storage capability is unrealistically high, and that this little advantage comes at increased gross weight and operational costs. Therefore, a significant impact into aviation emissions reduction can only be obtained with a revolutionary design, which integrates disruptive technologies starting from the preliminary design phase. This paper reviews the recent advances in propulsions, aerodynamics, and structures to present the enabling technologies for a low emissions aircraft, with a focus on the commuter category. In fact, it is the opinion of the European Community, which has financed several projects, that advances on the small air transport will be a fundamental step to assess the results and pave the way for large greener airplanes.

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Interaction of Guided Waves with Delamination in a Bilayered Aluminum-Composite Pressure Vessel

Cited by 27 publications

References 40 publications

Assessment of Damage in Composite Pressure Vessels Using Guided Waves

Assessment of Damage in Composite Pressure Vessels Using Guided Waves

Impact of Structural Health Monitoring on Aircraft Operating Costs by Multidisciplinary Analysis

The Enabling Technologies for a Quasi-Zero Emissions Commuter Aircraft

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