A rotating machine (or flywheel device) consists of a flywheel with a claw, which is released at the required test velocity and is impacting a yoke. The yoke pulls the test specimen, which is attached in a specimen holder.

flywheel

220 kg rotating wheel impact tester

Technical specifications:

  • Testing speed 1 to >40 m/s
  • 220 kg rotational mass
  • Temperatures: -196° C bis 1000° C

10 t rotating wheel impact tester

Technical specifications:

  • Rotational mass of 10,000 kg
  • Max. testing speeds up to 12 m/s
  • Max. testing forces up to 800 kN
  • Deformation energy up to 300 kJ

Loading type:

  • Tension
  • Notch tensile
  • Bending

Belastungsart:

  • Tension
  • Notch tensile

Advantages:

  • Possibility of extremely high strain rates of 102–104 s–1</sup
  • Stopped tensile tests with dynamic-impact loading up to > 10 m/s with stress–strain measurement
  • Precise force measurement
  • Almost constant impact speed due to high impact energy
  • Testing of high/ultra-high-strength and highly ductile materials

Advantages:

  • Component testing under impact conditions
  • Testing of non-scalable components (e.g., welded, soldered, bonded and screwed joints, ropes, nets)
  • Combination with optical high-speed displacement-measurement processes and high-speed deformation-field measurement processes
  • Constant impact speed due to high excess mechanical energy
  • Testing of high/ultra-high-strength and highly ductile materials
  • Precise force measurement by means of strain-gauge measurement technology
  • Dynamic component testing for the validation of numerical simulations
  • Testing of notched specimens for failure characterization
  • Also possible to test welded, soldered, bonded and screwed joints