Dynamic material properties
Strain measurements in a split Hopkinson bar
Material constants like Young's modulus and Poisson's ratio are important characteristic quantities of materials that are used in components, designs and structures.
Depending on the design, it is absolutely essential to exactly know the respective parameters valid for the materials used, since they provide information, for example, about how much a component is deformed when a force is applied to it.
The values specified in standard works and tables have usually been measured in testing machines under quasi-static conditions. However, other methods like Strain measurements in a split Hopkinson bar are required to determine material behavior under dynamic conditions.
