Electromechanical Response and Residual Thermal Stress of Metal-Core Piezoelectric Fiber /Al Matrix Composites.

摘要: It is well known that the curing residual stress induced during a fabrication process has great influence on performance of piezoelectric composite devices. The purpose this work was to evaluate thermal lead zirconate titanate fiber aluminum (Al) matrix (piezoelectric fiber/Al) composites generated numerically and experimentally understand effect electromechanical response. three-dimensional finite element method employed, solidification Al calculated. output voltage also calculated in analysis when putting stresses materials length direction fiber. shown cooling from higher temperatures increases conversion capability. Furthermore, we performed simulation, recorded under concentrated load investigate its application as position detection sensor, discussed by changing modeling with different Al. hot press molded fiber/Al then measured, comparison made values. simulation results revealed our model predictions reproduced explained experimental observations stress. After study, similar models can be analyzed result used design materials.