Split Hopkinson Pressure bar (or Kolsky bar)

Many prior posts asked about manufacturers of Split Hopkinson Pressure Bar equipment. REL Inc in Calumet MI (http://www.relinc.net/products/hopkinson-bar/) designs, builds & installs custom equipment to meet your requirements. We offer a university discount.  And, we provide in-house testing; manufacturing of samples, etc. A new offering in this field is our SurePulse software which simplifies the data acquisition effort for Hopkinson bar testing. 

A question for the audience:

The response of structural materials to external mechanical load may strongly depend on the rate at which the load is imposed. For example, a specimen may exhibit ductile fracture if loaded at quasi-static rate (strain rate below 1.0/s), but may show brittle fracture under impact (high-rate) loading. According to the classic monograph of Professor Marc Meyers, if the strain rate is above 100/s, it can be put into the high-strain rate regime. The mechanical behavior of structural materials under such loading conditions is dubbed dynamic.