Modelling and Analysis of Thermomechanical Behaviour in Composite Bimorph Actuator

Hiremath, Shivashankar; Kulkarni, S. M.

doi:10.4028/www.scientific.net/msf.928.209

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…The heating and cooling of polymer composite are assumed to be an isothermal object. The composite material properties were calculated using the law of mixture by varying volume percentages of filler content [18,19]. These material properties are used in the numerical study of expansion and contraction of the beam.…”

Section: Basic Conceptsmentioning

confidence: 99%

Numerical Analysis of Polymer Composites for Actuation

Hiremath

Sangappa

Rajole

et al. 2020

RCMA

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The design of a polymer composite actuator is essential for micro and nano applications. Thus, the composite material may deform or deflects as specific stimuli are applied, such as heat, electrical, light source, etc. The deformation of the composite material is caused by the type of stimulus applied. Hence, while it is heated, the expansion takes place quickly, and the heating is shut down, the material shrinks very slowly. In the present investigation, this phenomenon is mainly studied in the actuation of composite beams. Numerical analysis of carbon black filled polymer composite beam expansion, and contraction is being analyzed in this research. The structure of the beam has been created, and the composite properties are incorporated into the beam, and the uniform heat source is applied on to the surface of the beam. The heating and cooling of the composite material predict the increase and decrease in the temperature of the beam. The numerical analysis of the temperature-dependent expansion and contraction of the composite beam has been carried out successfully. An increase in temperature is observed to signify the slight expansion in the composite beam, whereas the contraction of the composite beam takes a longer time to reach room temperature. Also, the increase in the content of the filler leads to a decrease in the expansion of the composite beam. The numerical simulation of the polymer composite thus provides a solid platform for the experimental study of thermal actuators.

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Section: Basic Conceptsmentioning

confidence: 99%

Numerical Analysis of Polymer Composites for Actuation

Hiremath

Sangappa

Rajole

et al. 2020

RCMA

View full text Add to dashboard Cite

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Study on low-frequency dielectric behavior of the carbon black/polymer nanocomposite

Hiremath

Mathias

Sondar

et al. 2021

J Mater Sci: Mater Electron

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Recently, polymer-based dielectric materials have become one of the key materials to play an essential role in clean energy production, energy transformation, and energy storage applications. The end usage is the energy storage capability because it is a trade-off between dielectric permittivity, dielectric loss, and dissipation factor. Hence, it is of prime importance to study the dielectric properties of polymer materials by adding filler material at a low-frequency range. In the present study, polydimethylsiloxane/carbon black nanocomposites are prepared using the solution cast method. The dielectric properties, such as dielectric constant, dielectric loss, and dissipation factors due to the concentration of filler particles and low-frequency effect on the nanocomposites, are examined. Also, different empirical models are used to estimate the dielectric permittivity of polymer nanocomposites. The low-frequency range of 100 Hz to 1 MHz and the effect of varying volume fractions of carbon black show a significant change in the dielectric properties. It is found that the nanocomposites have a higher dielectric permittivity than the base polymer material. It is also observed that an increase in filler concentration increases the dielectric permittivity, which is confirmed with an empirical model.

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Modelling and Analysis of Thermomechanical Behaviour in Composite Bimorph Actuator

Cited by 2 publications

References 10 publications

Numerical Analysis of Polymer Composites for Actuation

Numerical Analysis of Polymer Composites for Actuation

Study on low-frequency dielectric behavior of the carbon black/polymer nanocomposite

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