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Identification From Multi-Physics Full-Field Measurements at the Micrometer Scale: the Electro-Elastic Coupling

Identification From Multi-Physics Full-Field Measurements at the Micrometer Scale: the Electro-Elastic Coupling,10.1007/978-1-4020-6239-1_330,F. Amiot

Identification From Multi-Physics Full-Field Measurements at the Micrometer Scale: the Electro-Elastic Coupling  
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We use metal coated micro-cantilevers as transducers from their electrochemical environment (Lavrik et al. [1]). Using the metallic layer of these cantilevers as a working electrode allows one to modify the electrochemical state of the cantilever surface. Since the mechanical behaviour of micrometer scale objects is significantly surface-driven, this environment modification induces a bending of the cantilever (Raiteri and Butt [2]). However, if the existence of this surface coupled phenomena has been demonstrated, the modelling of the connection between the electrochemical state of an interface and the induced deformation remains an open issue. Since one of the main difficulty is to ensure a uniform and well defined loading at the micrometer scale, it is thought that increasing the experimental information content may lead to a significant improvement of modelling, provided the redundancy of the measured quantity is sufficient. This statement is at the origin of the development of identification techniques based on full-field measurements in solids mechanics.
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