Experimental Characterization





The evaluation of mechanical properties of materials is an important issue in support to robotics, mechatronics and bioengineering. A particular field we are interested in is that of piezoelectric materials, which experience mechanical deformations when placed in electric fields, and become electrically polarized under mechanical loads (electromechanical coupling).

The characterization of mechanical and electromechanical properties allows to explore the materials behavior under controlled conditions and to optimize their integration into more complex structures. As to (electro)mechanical properties, they can be subdivided into two main branches: elastic and viscoelastic properties and ultimate properties (plasticity, fracture, fatigue damage, …). Aging and durability properties are also important for the applications.

Expertise in solids mechanics applied to materials characterization has been developed working in strict collaboration with the Materials Engineering group (Department of Civil, Chemical and Environmental Engineering, University of Genoa) and setting up a joint lab to study materials at a macroscopic level. A versatile experimental setup is used for materials (electro)mechanical dynamic characterization:

Mechanical characterization: complex moduli in frequency sweep

Electromechanical characterization: complex piezoelectric moduli in frequency sweep

Strength of materials / fatigue analysis / creep / temperature / aging

Selected publication

Seminara L, Capurro, M, Cirillo, P, Cannata, G, Valle, M, Electromechanical characterization of piezoelectric PVDF polymer films for tactile sensors in robotics applications, Sens. Actuators A. 169, 1 (2011) 49-58.


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