This edited work covers piezoelectric materials in the form of beams plates shells and other
structural components in modern devices and structures. Applications are frequency control and
detection functions in resonators sensors actuators oscillations and other smart and
intelligent structures. The products and technology are with us in our daily life through
computers and communication devices.The contributions cover novel methods for the analysis of
piezoelectric structures including wave propagation high frequency vibration material
characterization and optimization of structures. Understanding of these methods is
increasingly important in the design and modelling of next generation devices and
micro-structures with piezoelectric elements and effects.