Fractional derivative Energy Harvesting Composite PiezoElectricity Hystérésis magnétique Mechanical excitations Dielectric properties Ferromagnetic composites Vibration energy harvesting Strain Contrôle non destructif Actuators Finite element simulation Medical applications Modélisation Fractional derivatives Energy conversion Récupération d'énergie Piezoelectric Structural health monitoring Fabrication additive Piézoélectricité Elastocaloric effect Electrotechnique Materials Vibration control Energétique Ericsson cycle Hysteresis Hysteresis loss Energy transfer Contraintes mécaniques Piezoelectric coefficient Frequency dependence Dielectrophoresis Magnetic hysteresis Electroactive material Caoutchouc naturel Energy harvesting Polymère électrostrictif Piezoelectric devices Permittivity Bruit de Barkhausen Ferromagnetic materials Ferroelectricity Electrostrictive polymer Electrotechnics Piezoelectricity Thermal energy Eddy current testing Bimetal Dielectric permittivities Natural rubber Capteur Yarn Matériaux Conducting polymers Actuator Electrostriction Electro-active polymers Barkhausen noise Electroactive polymer Electromechanical coupling Piezoelectric Materials Dielectric materials Composite materials Elastocaloric Ferroelectric ceramics Low-frequency induction heating Mechanical actuators Polyurethane Jiles-Atherton model Ferroelectric materials Bimetallic strips Nonlinear Couplings Solid state reactions Wave propagation Solid-state cooling Polarization Carbon nanotubes Ferroelectric Polymers Magnetic incremental permeability Piezoelectric ceramics Piezoelectric elements Electromechanical conversion Electric fields Vibration Electroactive polymers Additive manufacturing Damping Mechanical energies Bistable Nanocomposites Electrostrictive polymers Mechanical properties Electrostrictive Amortissement des vibrations Ceramic materials