Basic Characteristics, Modeling, and Applications of PVDF

The paper provides a summary review of the properties, modeling and applications of piezoelectric polymers. Attention is focused on the results of a consistent experimental program directed to characterize the mechanical response of polyvinylidene fluoride (PVDF) under static and cyclic loading conditions. Experimental results demonstrate that, within certain limits, the properties of PVDF can be represented by the constitutive law of linear viscoelasticity. The behavior of PVDF subjected to combined static and cyclic loads is characterized by much higher creep rates as compared with creep deformations under static loading conditions. This phenomenon is attributed to creep-fatigue interaction effects. Practical implications of these findings and future research directions are discussed.