Recent advancement in optical fiber sensing for aerospace composite structures

Minakuchi, Shu; Takeda, Nobuo

doi:10.1007/s13320-013-0133-4

Cited by 72 publications

(34 citation statements)

References 39 publications

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“…The former approach can be used for SHM of similar structures, like small cylindrical pressure vessels [17], or for structural details, like monitoring stringer debondings [18]; it has also been used to monitor bonded and bolted joints ([19,20], respectively). But for practical reasons, the whole surface of the aircraft cannot be covered with a continuous optical fiber; the maximum inspectable length is about 100 m. This concept is useful by reducing the covered area to critical regions with a higher risk of damage.…”

Section: Detection Of Damage-induced Strainsmentioning

confidence: 99%

Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors

Güemes

Fernández-López

Díaz-Maroto

et al. 2018

Sensors

115

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Fiber-optic sensors cannot measure damage; to get information about damage from strain measurements, additional strategies are needed, and several alternatives are available in the existing literature. This paper discusses two independent procedures. The first is based on detecting new strains appearing around a damage spot. The structure does not need to be under loads, the technique is very robust, and damage detectability is high, but it requires sensors to be located very close to the damage, so it is a local technique. The second approach offers wider coverage of the structure; it is based on identifying the changes caused by damage on the strain field in the whole structure for similar external loads. Damage location does not need to be known a priori, and detectability is dependent upon the sensor’s network density, the damage size, and the external loads. Examples of application to real structures are given.

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Section: Detection Of Damage-induced Strainsmentioning

confidence: 99%

Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors

Güemes

Fernández-López

Díaz-Maroto

et al. 2018

Sensors

115

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“…Nevertheless, the SHM systems cost has been decreasing, especially by the constant development of lower cost sensors and techniques [75], [76].…”

Section: Recent Advances On Shmmentioning

confidence: 99%

Global overview on advances in structural health monitoring platforms

Mesquita

Antunes

Coelho

et al. 2016

J Civil Struct Health Monit

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Advances in the development of sensors, data processing systems, and numerical models have motivated the implementation of structural health monitoring (SHM) specially focused on the assessment of structural safety. Thus, this work presents a literature review about SHM platforms, especially from 1993 to 2015. In this way, a short history review about the recent advances on SHM, mainly related with dynamic monitoring, was summarized, and a benchmark and the main guidelines related with SHM platforms were also included in this review. Some case studies are also described here. Special attention was given to SHM platforms, and a method for their classification (an extension of Rytter's method) is presented. In addition, experiences related with heritage constructions, specially focused on maintenance, were included in this work. In the final section, some observations are made about the new prospects for SHM. The recent advances on SHM platforms contributed to the development of adaptive systems and to the cost reduction of the monitoring systems implementation, allowing the increase of its application in real structures. However, the monitoring systems should be implemented, optimizing all the available sensing technologies.

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“…They can be easily embedded into composite materials [19, 20] because of their flexibility, strength and heat resistance. Table 1 [21] provides a summary of the mechanical and physical properties of different types of optical fibers which can be used as sensors.…”

Section: System Descriptionsmentioning

confidence: 99%

“…Embedding FBG sensors into a polymer matrix is a relatively easy process [19, 23, 24]. The great potential of optical fiber sensors for structural health monitoring was highlighted by Minakuchi and Takeda [19].…”

Section: System Descriptionsmentioning

confidence: 99%

Towards sensor array materials: can failure be delayed?

Mekid

Saheb

Khan

et al. 2015

Science and Technology of Advanced Materials

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Further to prior development in enhancing structural health using smart materials, an innovative class of materials characterized by the ability to feel senses like humans, i.e. ‘nervous materials’, is discussed. Designed at all scales, these materials will enhance personnel and public safety, and secure greater reliability of products. Materials may fail suddenly, but any system wishes that failure is known in good time and delayed until safe conditions are reached. Nervous materials are expected to be the solution to this statement. This new class of materials is based on the novel concept of materials capable of feeling multiple structural and external stimuli, e.g. stress, force, pressure and temperature, while feeding information back to a controller for appropriate real-time action. The strain–stress state is developed in real time with the identified and characterized source of stimulus, with optimized time response to retrieve initial specified conditions, e.g. shape and strength. Sensors are volumetrically embedded and distributed, emulating the human nervous system. Immediate applications are in aircraft, cars, nuclear energy and robotics. Such materials will reduce maintenance costs, detect initial failures and delay them with self-healing. This article reviews the common aspects and challenges surrounding this new class of materials with types of sensors to be embedded seamlessly or inherently, including appropriate embedding manufacturing techniques with modeling and simulation methods.

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Recent advancement in optical fiber sensing for aerospace composite structures

Cited by 72 publications

References 39 publications

Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors

Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors

Global overview on advances in structural health monitoring platforms

Towards sensor array materials: can failure be delayed?

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