Practical Training
Performance of tensile tests under high strain rates according to DIN 26203
Description
Nowadays, a large part of vehicle development takes place digitally. Thus, it is state of the art to perform crash simulations in order to investigate the behavior of vehicles or vehicle components in crash situations. However, an FE model can only deliver meaningful results if the responsible engineer takes crash-specific aspects into account during modeling. The material properties are of particular importance here. For example, a large number of materials exhibit strain-rate-dependent behavior. This means that quasi-static characteristic values from the "classic" tensile test cannot be used for the definition. It is necessary to determine characteristic values under high test speeds.
Contents
In the course of the practical course, tests are carried out under high test speeds. The following points are considered:
- Peculiarities in the selection of measurement technology
- Application of strain gages on a tensile specimen
- Preparation of the specimen for deformation measurement using image correlation
- Setup of the measurement technique (3D camera system)
- Execution of the experiment
- Elaboration in home work (evaluation of the test and determination of the dynamic characteristic values)
Organizational
1 experiment - 1 CP
Date after arrangement
Further information and registration: Dr.-Ing. Matthias Oxe