D1.3 Crash-resistance tests – Abstract

This deliverable covers the evaluation of intrinsic material crash resistance in terms of fracture mechanics performed by LTU. So-called EWF (essential work of fracture) tests are performed in order to characterize some steel grades suitable for crash protection components.

Furthermore, dynamic testing is conducted of crash boxes and beam structures. An overview regarding the status of the D1.3 is presented as well as results from the high-speed EWF testing of the FortiForm® 1180 CFB Bare steel grade.

Tensile tests at 3 different strain rates were performed by COMTES FHT. The testing specimens were manufactured in 3 orientations (0°, 45°, 90°) in relation to the rolling direction from several materials. As the next step, the compression and bending tests was carried out on the steel components using omega-profiles. The results will be used to evaluate the material crashworthiness and for verification of the material model.