A physically based model for stress sensing using magnetostrictive composites

Yoffe, Alexander; Weber, Yarden B.; Shilo, Doron

doi:10.1016/j.jmps.2015.09.013

Cited by 12 publications

(35 citation statements)

References 23 publications

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“…[120] The two curves were in good agreement and a magnetic induction change of approximately 35 μT was obtained for a specimen with 20% Terfenol-D and a size of 30 μm under a compressive stress of 30 MPa. [120] The two curves were in good agreement and a magnetic induction change of approximately 35 μT was obtained for a specimen with 20% Terfenol-D and a size of 30 μm under a compressive stress of 30 MPa.…”

Section: Polymer With Magnetostrictive Fillersmentioning

confidence: 54%

“…A comparison was made between the calculated and measured induced magnetic induction versus stress curves for a fabricated epoxy-based composite material containing Terfenol-D particles. [120] The two curves were in good agreement and a magnetic induction change of approximately 35 μT was obtained for a specimen with 20% Terfenol-D and a size of 30 μm under a compressive stress of 30 MPa.…”

Section: Polymer With Magnetostrictive Fillersmentioning

confidence: 54%

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A Review on Piezoelectric, Magnetostrictive, and Magnetoelectric Materials and Device Technologies for Energy Harvesting Applications

2017

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In the coming era of the internet of things (IoT), wireless sensor networks that monitor, detect, and gather data will play a crucial role in advancements in public safety, human healthcare, industrial automation, and energy management. Batteries are currently the power source of choice for operating wireless network devices due to their ease of installation; however, they require periodic replacement due to capacity limitations. Within the scope of the IoT, battery maintenance of the trillion sensor nodes that may be implemented will be practically infeasible from environmental, resource, and labor cost perspectives. In considering individual self-powered sensor nodes, the idea of harvesting energy from ambient vibrations, heat, and electromagnetic waves has recently triggered noticeable research interest in the academic community. This paper gives an overview of energy harvesting materials and systems. Three main categories are presented: piezoelectric ceramics/polymers, magnetostrictive alloys, and magnetoelectric (ME) multiferroic composites. State-of-the-art harvesting materials and structures are presented with a focus on characterization, fabrication, modeling and simulation, and durability and reliability. Some perspectives and challenges for the future development of energy harvesting materials are also highlighted.

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Section: Polymer With Magnetostrictive Fillersmentioning

confidence: 54%

Section: Polymer With Magnetostrictive Fillersmentioning

confidence: 54%

A Review on Piezoelectric, Magnetostrictive, and Magnetoelectric Materials and Device Technologies for Energy Harvesting Applications

2017

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“…Perfect bonding between the Fe‐Co wire and epoxy cylinder implies that

ε_{33}^{f} = ε_{33}^{m} .

σ_{33}^{f}

and

σ_{33}^{m}

are uniform owing to the transverse isotropy of the RVE, and the average stress can therefore be given by

σ_{33}^{0} = σ_{33}^{f} v^{f} + σ_{33}^{m} ((), 1 - v^{f}) .

This stress

σ_{33}^{0}

is the stress imposed by the loading machine on the composite materials. Equations and constitute the simple rule of mixture for the axial stress and strain along the x 3 ‐axis, and this rule of mixture is exact under the conditions considered …”

Section: Discussionmentioning

confidence: 99%

Evaluation of the inverse magnetostrictive effect in heat‐treated Fe‐Co wire/polymer composites

Katabira

Kimura

Yamazaki

et al. 2019

Mat Design & Process Comms

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In recent years, the innovative technology of energy harvesting from ambient energy (eg, shock or vibration) has become necessary for Internet of Things (IoT) wearable devices. Moreover, these devices are expected to be lightweight, robust, and have a high efficiency of energy conversion. In this study, magnetostrictive polymer composites were fabricated with as‐drawn or heat‐treated Fe‐Co wires. Mechanical tests and analyses were conducted to investigate their stress‐rate‐dependent sensor characteristics, and cyclic compression tests were carried out to measure the output voltage of these samples. A simple nonlinear magnetomechanical coupling model of the magnetostrictive wire/polymer composites was used to predict the internal stress in the wire. The experimental results showed that the output voltage density of the heat‐treated Fe‐Co wire/polymer composite was larger than that of the as‐drawn one, and the heat treatment enhanced the inverse magnetostrictive characteristics of the Fe‐Co wire.

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“…Recently, magnetostrictive composites composed of Terfenol‐D particles dispersed in a polymer matrix have attracted considerable interest because of their high tensile strength and smaller eddy‐current losses . Kubicka et al studied the effects of Terfenol‐D particle content and size on magnetic induction changes due to the applied stress for epoxy resins modified with Terfenol‐D particles, and Yoffe et al introduced a new procedure for modeling the magnetic field induced by an external load applied to epoxy‐based composite materials with Terfenol‐D particles.…”

Section: Final Dimensions Wire Aspect Ratio Wire Volume Fraction Anmentioning

confidence: 99%

Inverse Magnetostrictive Effect in Fe₂₉Co₇₁ Wire/Polymer Composites

Narita

2016

Adv Eng Mater

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Wearable Internet of Things devices require innovatively designed electromagnetic materials and energy harvesting technology that is lightweight and able to withstand vigorous exercise and impact. In this study, magnetostrictive wire/polymer composites are developed for the first time by embedding Fe-Co wires in an epoxy matrix, and their inverse magnetostrictive characteristics are studied. The output voltage of this novel composite due to compression dramatically increases with increasing stress-rate. Synthesis of the Fe-Co wire-based composite may induce tensile prestress (rather than compressive prestress) during curing, leading to an extraordinary inverse magnetostriction enhancement. This work opens the door for development of lightweight, robust, and efficient energy harvesting devices.The Internet has more than two billion users worldwide, and user experiences and quality of life can be further improved by allowing seamless communication among various physical devices. Internet of Things is the enabling technology for a plethora of long-awaited applications and business opportunities in fields such as domotics, e-health, and real-time monitoring. [1] Energy harvesting is an emerging technology that has been recently receiving much attention as an alternative proactive method to power wireless communication nodes; there have been many studies conducted on energy harvesting from sources such as vibrations and motion resulting from direct force inputs.

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A physically based model for stress sensing using magnetostrictive composites

Cited by 12 publications

References 23 publications

A Review on Piezoelectric, Magnetostrictive, and Magnetoelectric Materials and Device Technologies for Energy Harvesting Applications

A Review on Piezoelectric, Magnetostrictive, and Magnetoelectric Materials and Device Technologies for Energy Harvesting Applications

Evaluation of the inverse magnetostrictive effect in heat‐treated Fe‐Co wire/polymer composites

Inverse Magnetostrictive Effect in Fe₂₉Co₇₁ Wire/Polymer Composites

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A physically based model for stress sensing using magnetostrictive composites

Cited by 12 publications

References 23 publications

A Review on Piezoelectric, Magnetostrictive, and Magnetoelectric Materials and Device Technologies for Energy Harvesting Applications

A Review on Piezoelectric, Magnetostrictive, and Magnetoelectric Materials and Device Technologies for Energy Harvesting Applications

Evaluation of the inverse magnetostrictive effect in heat‐treated Fe‐Co wire/polymer composites

Inverse Magnetostrictive Effect in Fe29Co71 Wire/Polymer Composites

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Inverse Magnetostrictive Effect in Fe₂₉Co₇₁ Wire/Polymer Composites