Characterization of Tensile and Impact Properties of Polymer Hybrid Composites

Prakash, Keerti; Swamy, R H M Somnath; Manjunath, K.; Achari, A.

doi:10.17577/ijertv5is060484

Cited by 1 publication

(1 citation statement)

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“…The stress induced in a cantilever during bending is concentrated near the clamped end of the cantilever. 7 In other words, the strain is at its maximum in the clamped end and decreases in magnitude at locations further away from the clamp. 8 As a result, the non-stressed portion of the piezoelectric layer does not actually contribute to power generation.…”

Section: A Cantilever Beamsmentioning

confidence: 99%

Energy harvesting from low frequency applications using piezoelectric materials

Tian

Deng

2014

Applied Physics Reviews

564

340

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In an effort to eliminate the replacement of the batteries of electronic devices that are difficult or impractical to service once deployed, harvesting energy from mechanical vibrations or impacts using piezoelectric materials has been researched over the last several decades. However, a majority of these applications have very low input frequencies. This presents a challenge for the researchers to optimize the energy output of piezoelectric energy harvesters, due to the relatively high elastic moduli of piezoelectric materials used to date. This paper reviews the current state of research on piezoelectric energy harvesting devices for low frequency (0-100 Hz) applications and the methods that have been developed to improve the power outputs of the piezoelectric energy harvesters. Various key aspects that contribute to the overall performance of a piezoelectric energy harvester are discussed, including geometries of the piezoelectric element, types of piezoelectric material used, techniques employed to match the resonance frequency of the piezoelectric element to input frequency of the host structure, and electronic circuits specifically designed for energy harvesters.

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Section: A Cantilever Beamsmentioning

confidence: 99%