A comparative assessment of different frequency based damage detection in unidirectional composite plates using MFC sensors

Medeiros, Ricardo de; Sartorato, Murilo; Vandepitte, Dirk; Tita, Volnei

doi:10.1016/j.jsv.2016.06.047

Cited by 39 publications

(23 citation statements)

References 37 publications

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“…De Medeiros and colleagues 41–44 proposed a new damage metric to determine the influence of the damage in the free–free vibration response. Different measurements can be used to determine the FRF, such as acceleration/force, velocity/force, displacement/force, strain/force and PZT sensor voltage/PZT excitation voltage.…”

Section: Shm For Impact Damaged Composite: a New Methodologymentioning

confidence: 99%

Structural health monitoring for impact damaged composite: a new methodology based on a combination of techniques

Medeiros

Vandepitte

Tita

2017

Structural Health Monitoring

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Advanced aerospace materials, including fibre-reinforced polymer and ceramic matrix composites, are increasingly being used in critical and demanding applications, challenging not only the current damage prediction, detection and quantification methodologies, but also the residual life of the structure. The main objective of this work consists of developing a new methodology based on different techniques to be applied on structural health monitoring system for impacted composite aeronautic structures. For this, it is necessary to identify, and to localise damage, as well as to calculate the severity of the damage and to predict the residual strength of the composite structure. To achieve these goals, the research methodology should consider three methods: (1) vibration-based method, (2) shearography speckle and (3) flexural after impact. Composite plates, made of epoxy resin reinforced by carbon fibre, are evaluated. First, vibration-based method provides frequency response functions to be analysed by a new metric, which is compared in terms of their capability for damage identification and global location. Afterwards, the extension of impact damage is determined using shearography speckle. This technique has demonstrated great potential for damage detection in composite-laminated structures. A flexure after impact test is used to evaluate its limitations and potentialities as a damage-tolerance technique. The residual flexural strength of damaged specimens is evaluated by quasi-static four-point bending test. A new criterion based on a relationship between damage metric from vibration-based method and flexure after impact analysis is presented and discussed. Finally, it discussed the advantages and limitations of this combination of techniques into the context of structural health monitoring systems.

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Section: Shm For Impact Damaged Composite: a New Methodologymentioning

confidence: 99%

Structural health monitoring for impact damaged composite: a new methodology based on a combination of techniques

Medeiros

Vandepitte

Tita

2017

Structural Health Monitoring

Self Cite

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“…On the other hand, several custom-built sensors designed to monitor structures for damage diagnosis purposes, have been proposed over the recent years, for instance [17][18][19][20][21][22]. Such sensors are mostly designed to be patched onto the structure, so that the sensing element such as, fiber bragg gratings [18,19], magnetoelastic strips [21], and PZT impedance [22] or MFC (macro-fiber composite) transducers [23] to name but a few, could measure specific dynamic properties of the structure under vibration.…”

Section: Introductionmentioning

confidence: 99%

“…In general, 3D printing procedures have been used for the sensor's construction [17] or the integration of the necessary circuitry/devices in order to facilitate operation of laser displacement sensors [20] or MFC sensors/transducers [23]. In other words, the 3D printing process has very often served as a means of facilitating the sensor's construction process, or it's mounting onto a given structure and its effective operation, but it has rarely been used for manufacturing a structure with a sensing element integrated within.…”

Section: Introductionmentioning

confidence: 99%

Inducing Damage Diagnosis Capabilities in Carbon Fiber Reinforced Polymer Composites by Magnetoelastic Sensor Integration via 3D Printing

2020

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This study investigates the possibility of inducing damage diagnosis capabilities in carbon fiber reinforced polymer composite slabs using custom-built integrated sensors and conventional, affordable equipment. The concept utilizes magnetoelastic strips integrated via 3D printing procedures in composite slabs. Under external mechanical loading, the strip magnetization changes due to the magnetoelastic phenomenon. Accordingly, electrical signals may be passively induced in conventional reception coil circuits placed at a distance from the slab. Since these signals quantify the vibrating slab’s response, which is affected by the slab’s structural integrity, damage may be detected when specific signal characteristics change. Two main issues are examined, namely the ability of receiving meaningful (with respect to noise) electrical signals from the built-in strips despite their contact-less passive reception, and the potential of diagnosing damage using such signals. Hence, slabs of various sizes and levels of structural damage (notches) have been vibrated at different frequencies and amplitudes. Treating the experimental data from integrated strips by applying the proposed processing framework allows for calculating eigenfrequencies sensitive to occurring damage (and its severity), as verified by finite element models of the vibrating slabs. Accordingly, damage may be detected and evaluated via the currently proposed experimental testing and analysis framework.

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“…The main method to increase overload is potting, which uses the potting material with excellent dynamic performance to encapsulate the sensor so that it may be cured into a module. But the inherent frequency of the sensor system may also be improved, and the fatigue effect of the system may be reduced through the miniature design of the sensor electronics [10].…”

Section: Introductionmentioning

confidence: 99%

Research on Anti Impact Simulation of Sensor Electronic Equipment

Li¹,

Yan²

2016

Proceedings of the 2016 4th International Conference on Sensors, Mechatronics and Automation (ICSMA 2016)

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Abstract. This paper analyses the mechanism of impact vibration on electronic equipment of the sensor and the vibration isolation, as well as buffering mechanism of cushioning materials. And for the impact environment of electronic equipment of the sensor, the design of the structure against the impact of high overload is made. The vibration isolator of the sensor is developed by using both of potting material and the rubber -foam aluminum overlap method. The shock wave is attenuated by a multi -layer dielectric absorption technique, and the shock resistance of the sensor system is improved. ANSYS software obtains the maximal stress, maximum displacement, stress time curve, and displacement time curve of the system for transient impact analysis of the electronic sensor equipment. The simulation results validate the rationality of the design method against high overload impact.

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A comparative assessment of different frequency based damage detection in unidirectional composite plates using MFC sensors

Cited by 39 publications

References 37 publications

Structural health monitoring for impact damaged composite: a new methodology based on a combination of techniques

Structural health monitoring for impact damaged composite: a new methodology based on a combination of techniques

Inducing Damage Diagnosis Capabilities in Carbon Fiber Reinforced Polymer Composites by Magnetoelastic Sensor Integration via 3D Printing

Research on Anti Impact Simulation of Sensor Electronic Equipment

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