Vibration control of a smart structure embedded with metal-core piezoelectric fibers

Takagi, Kiyoshi; Satō, Hiroshi; Saigo, Muneharu

doi:10.1163/156855106778835195

Cited by 16 publications

(16 citation statements)

References 10 publications

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“…Experimental results showed the electromechanical coupling of the fiber to have a d 31 piezoelectric coupling as high as À112pC/N (45.5% of that of the bulk material). Takagi et al [13] embedded a PZT-coated platinum fiber in a carbon fiber reinforced plastic (CFRP) to form a ''smart board'' for vibration suppression. More recently Sato [14] applied a hydrothermal method to grow PZT coating onto nickel titanium wires.…”

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confidence: 99%

Fabrication and Electromechanical Characterization of a Piezoelectric Structural Fiber for Multifunctional Composites

Lin

Sodano

2009

Adv Funct Materials

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The use of piezoceramic materials for structural sensing and actuation is a fairly well developed practice that has found use in a wide variety of applications. However, just as advanced composites offer numerous benefits over traditional engineering materials for structural design, actuators that utilize the active properties of piezoelectric fibers can improve upon many of the limitations encountered when using monolithic piezoceramic devices. Several new piezoelectric fiber composites have been developed; however, almost all studies have implemented these devices such that they are surface‐bonded patches used for sensing or actuation. This paper will introduce a novel active piezoelectric structural fiber that can be laid up in a composite material to perform sensing and actuation, in addition to providing load bearing functionality. The sensing and actuation aspects of this multifunctional material will allow composites to be designed with numerous embedded functions, including structural health monitoring, power generation, vibration sensing and control, damping, and shape control through anisotropic actuation. This effort has developed a set of manufacturing techniques to fabricate the multifunctional fiber using a SiC fiber core and a BaTiO3 piezoelectric shell. The electromechanical coupling of the fiber is characterized using an atomic force microscope for various aspect ratios and is compared to predictions made using finite element modeling in ABAQUS. The results show good agreement between the finite element analysis model and indicate that the fibers could have coupling values as high as 68% of the active constituent used.

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confidence: 99%

Fabrication and Electromechanical Characterization of a Piezoelectric Structural Fiber for Multifunctional Composites

Lin

Sodano

2009

Adv Funct Materials

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“…More recently, several research groups developed the metal core PFCs to overcome the disadvantage of the HFC by coating a metal fiber (typical platinum fiber) with PZT to form the active piezoelectric fibers. [13][14][15][16] The metal core serves as one electrode for the PZT as well as carry part of the mechanical loading. Although metal core PFC provides significant advantages, the ductility and the high coefficient of thermal expansion of the metal conductor make the piezoceramic coating prone to cracking under mechanical strain and the sintering process.…”

Section: And Breimentioning

confidence: 99%

Electromechanical characterization of a single active structural fiber lamina for multifunctional composites

Lin

Sodano

2009

SPIE Proceedings

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Piezoelectric fiber composites (PFCs) are a new group of materials recently developed in order to overcome the fragile nature of monolithic piezoceramics. However, there are some practical limitations associated with these types of materials, namely the generally separate electrode makes them difficult to embed into composites and when imbedded the low tensile properties of the material and the abnormal geometry in comparison with traditional reinforcements lead to stress concentrations reducing the material's strength. To resolve the inadequacies of current PFCs, a novel active structural fiber (ASF) was developed that can be embedded in a composite material to perform sensing and actuation, in addition to providing load bearing functionality. The ASF combines the advantages of the high tensile modulus and strength of the traditional composite reinforcements as well as the sensing and actuation properties of piezoceramic materials. A micromechanics model based on the double inclusion approach and a finite element model were been developed to study the effective piezoelectric coupling coefficient of the ASF as well as the ASF lamina. In order to evaluate the performance of the ASF when embedded in a polymer matrix and validate the model's accuracy, single fiber lamina have been fabricated and characterized through testing with an atomic force microscope. The results of our testing demonstrate the accuracy of the model and show that ASF composites could lead to load bearing composites with electromechanical coupling greater than most pure piezoelectric materials.

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“…Such a sensor can then be used to sense deformation along the length direction. This metal core piezoelectric ceramic fiber sensor was fabricated by the squeezing (Sebald et al, 2005; Takagi et al, 2006) and pressing method, using the multi-dip-coating process (Dolay et al, 2014) and the hydrothermal method (Lin and Sodano, 2009; Shimojo et al, 2007). Semi-electrode metal core piezoelectric fibers can be prepared by jet plating electrode along the half longitudinal surface of the metal core piezoelectric ceramic fiber (Qiu et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

A biomimetic vibration sensor using a symmetric electrodes metal core piezoelectric fiber

Bian

Zhang

Sun

et al. 2017

Journal of Intelligent Material Systems and Structures

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A biomimetic vibration sensor to sense external vibrations was designed based on the hair receptor of insects similar to the water strider. Platinum core piezoelectric ceramic fiber body was prepared by squeeze and press method. This was followed by high-temperature sintering, surface electrode coating, and polarizing to fabricate the symmetric coated metal core piezoelectric fiber vibration sensor. A cantilever beam structure with two surface electrodes was designed as the theoretical sensor model. The fiber was fixed on a matrix structure. Experiments were performed to verify sensing characteristics under impact vibration and simple harmonic excitation. Results showed that the symmetric coated metal core piezoelectric fiber was able to sense amplitude and direction of impact vibration along with frequency, amplitude, and direction under simple harmonic excitation. Such a biomimetic vibration sensor can be effectively used to sense vibration amplitude and direction for a wide range of applications.

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Vibration control of a smart structure embedded with metal-core piezoelectric fibers

Cited by 16 publications

References 10 publications

Fabrication and Electromechanical Characterization of a Piezoelectric Structural Fiber for Multifunctional Composites

Fabrication and Electromechanical Characterization of a Piezoelectric Structural Fiber for Multifunctional Composites

Electromechanical characterization of a single active structural fiber lamina for multifunctional composites

A biomimetic vibration sensor using a symmetric electrodes metal core piezoelectric fiber

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