Go to top of the page

Mechanical Testing

CAVS performs mechanical tests of materials across the full spectrum of strain rates and fatigue regimes.

Quasi-static

CAVS has Instron electromechanical testing systems with 50kN and 100kN load frames that use a variety of different load cells. This machine is capable of conducting tension, compression, and flexure tests at various rates (0.001/500 mm/min) and temperatures up to 350C. They are equipped with flat and round (Vee) jaw faces.

CAVS also has an Instron Model 8850 for axial-torsional fatigue and static testing of biomedical, advanced materials and manufactured components.
CAVS also has an Instron Model 8850 for axial-torsional fatigue and static testing of biomedical, advanced materials and manufactured components. There are also three MTS servo-hydraulic load frame machines – equipped with grips for round and flat specimens – for axial and torsional fatigue testing:

  • MTS 810 with an axial load capacity of 100 kN,
  • MTS LandMark with an axial load capacity of 100 kN
  • MTS858 with an axial load capacity of 25 kN

Intermediate and High Strain rates

A critical element of understanding materials response is understanding properties over varying rates of deflection and strain. CAVS researchers have developed Split Hopkinson Pressure Bar (SHPB) high strain rate systems, deployed at multiple universities in the US, and have helped develop the first open source SHPB analysis tool for the dynamic materials community. CAVS has systems for testing both high- and intermediate-rate strain response.

Hyd. Model 8850
Used for compression, tension, and torsion in axial-torsional fatigue and static testing of biomedical, advanced materials and manufactured components.

Split Hopkinson Pressure Bar (SHPB) for high-strain rate testing

Intermediate-strain rate testing with high-speed camera

EM Model 5882
An Instron electromechanical testing system with a 100kN load frame that uses a variety of different load cells. Capable of conducting tension, compression, and flexure tests at various rates and temperatures up to 350 degrees C.

CAVS has capabilities for closed-loop thermo-mechanical simulation and testing, including high-speed deformation simulations with complete independent control of both strain and strain rate. Test variables can also include soaking times and temperatures, rolling temperature, interpass time, controlled cooling time, strain rate and amount of strain.