Non Linear Finite Element Modeling Of Thunder Piezoelectric Actuators

Download or read book Non-Linear Finite Element Modeling of Thunder Piezoelectric Actuators written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A NASTRAN non-linear finite element model has been developed for predicting the dome heights of THUNDER (THin Layer UNimorph Ferroelectric DrivER) piezoelectric actuators. To analytically validate the finite element model, a comparison was made with a non-linear plate solution using Von Karmen's approximation. A 500 volt input was used to examine the actuator deformation. The NASTRAN finite element model was also compared with experimental results. Four groups of specimens were fabricated and tested. Four different input voltages, which included 120, 160, 200, and 240 Vp-p with a 0 volts offset, were used for this comparison. Taleghani, Barmac K. and Campbell, Joel F. Langley Research Center NASA/TM-1999-209322, L-17834, NAS 1.15:209322, ARL-TR-1977