The Split Hopkinson Pressure Bar (SHPB) is used to measure material properties at high loading rates that can differ by an order of magnitude (strain rates in the thousands of in/in/sec) from those for quasi static loading. We offer comprehensive tests and analyses for stress-strain curves at high strain rates.

 This testing technique is based on the measurement of elastic strain waves which are transmitted through a system consisting of two long pressure bars with the test specimen sandwiched between the two bars. Our SHPB testing has following characteristics:

  • Compressive stress-strain curves,
  • Tests up to material fracture
  • Strain rates in the thousands of in/in/sec

Recent Applications Include

  • Composite materials
  • Ship propellers materials
  • Coating Materials

Split Hopkinson Pressure Bar