A18-a3 - Identification of temperature-dependent material parameter functions in piezoelectricity
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- A18-a - Nonlinear Properties of Piezoelectric Ceramics (FOR 5208)
- Author(s)
- R. Kuess, A. Walther - Humboldt-Universität zu Berlin, Berlin (Germany), O. Friesen, B. Henning - Paderborn University, Paderborn (Germany)
- Pages
- 134 - 137
- DOI
- 10.5162/Ultrasonic2025/A18-a3
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
We address the problem of identifying the temperature-dependent parameters of ring-shaped piezoelectric samples based on simulated data. For this purpose, we assume a polynomial structure of the material parameters with respect to the temperature. To increase stability and accuracy of the reconstruction, we apply adapted optimization and regularization strategies using regularized Newton-type methods in a block coordinate descent framework.