P59 - Improved Determination of Viscoelastic Material Parameters Using a Pulse-Echo Measurement Setup
- Event
- SMSI 2023
2023-05-08 - 2023-05-11
Nürnberg - Band
- Poster
- Chapter
- Poster
- Author(s)
- D. Dreiling, B. Henning, T. Hetkämper - University of Paderborn, Paderborn (Germany), C. Birk, D. Itner - University of Duisburg-Essen, Essen (Germany), H. Gravenkamp - CIMNE, Barcelona (Spain)
- Pages
- 394 - 395
- DOI
- 10.5162/SMSI2023/P59
- ISBN
- 978-3-9819376-8-8
- Price
- free
Abstract
Transmission measurements can be used to determine the frequency-dependent material parameters of polymers for simulative purposes. To achieve this goal, a hollow cylindrical sample is placed between two ultrasonic transducers. Hereafter, the material parameters are determined by ultrasound excitation in the MHz range and an inverse approach. However, the coupling conditions between the transducers and the sample is prone to uncertainties. Therefore, modeling of the setup for the inverse approach proves to be difficult. To reduce the uncertainties, this paper presents a measurement setup using a pulse-echo method in order to obtain frequency-dependent material parameters.