Dr. Alejandro D. Rey, Dr. Phillip Servio and Dr. Edtson Emilio Herrera Valencia Stress-Sensor Device Based on Flexoelectric Liquid Crystalline Membranes ChemPhysChem 15
Stressed out: Membrane flexoelectricity is an electromechanical coupling process that describes membrane bending under electric fields and membrane electrical polarization through bending. A stress-sensor device for mechanically loaded solids, consisting of a soft flexoelectric thin membrane attached to the loaded deformed solid, is proposed, formulated, and characterized. The device model, based on the integration of the thermodynamics of polarizable membranes with isotropic solid elasticity, can identify the elastic, electromechanical, and geometrical parameters involved in electrical signal generation.
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