Acoustic material characterization of prestressed, plate-shaped specimens

Inhalt:
For a realistic FEM-Simulation of mechanical systems, an accurate knowledge of the material parameters is necessary. Depending on the simulated component, high stresses might need to be considered. They can change the effective material parameters because of the nonlinear strain-stress relation which is normally assumed to be linear by Hook’s law. These parameter changes caused by the high stresses will be quantified by material characterization while a uniaxial tensile force is applied.