Strain Transfer Models for Strain Actuators

Abstract:

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This paper develops one-dimensional and two-dimensional models for bending, coupled bending and extension of isotropic beams/plates with induced strain actuators. The adhesive layer between the actuator and the structure is considered in the Bernoulli-Euler formulation and the results for various models are compared with the uniform strain model which includes the shear lag effects with assumption of a finite thickness of adhesive layer. The reduction in actuation as a result of strain distribution inside the actuator is considered to improve the prediction ability of the existing model based on the Bernoulli-Euler formulation. The FEM model is also developed to study the strain transfer in the beam. Finally, an experimental test employing a macro fiber composite (MFC) actuator is carried out to evaluate the accuracy and limitations of the developed models. The models are in good agreement with the experimental results.

Info:

Periodical:

Advanced Materials Research (Volumes 47-50)

Edited by:

Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam

Pages:

254-257

DOI:

10.4028/www.scientific.net/AMR.47-50.254

Citation:

S. D. Bahador et al., "Strain Transfer Models for Strain Actuators", Advanced Materials Research, Vols. 47-50, pp. 254-257, 2008

Online since:

June 2008

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Price:

$35.00

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