Dynamic Damage Testing
To characterize dynamic damage and fracture properties of materials, at DyMaLab multiple sample geometries and loading configurations have been developed. Aiming at high stress triaxialities, notched samples loaded at high strain rate in the split Hopkinson tensile bar are used. For negative stress triaxialities, dynamic compression of constrained samples or combined torsion/compression are performed. Low triaxialities are reached in well-designed shear samples or torsion samples.
Additionally, setups are available for dynamic fracture characterization using single edge notched tension (SENT) and bending (SENB) samples.