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Mechanical Testing

Dynamic Tension and Compression Testing
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A dynamic tension and compression testing machine, such as a Kolsky bar (split Hopkinson pressure bar), is used to test the high strain rate material properties of varying materials. The versatile bar is used to impose a dynamic load on a material specimen akin to that which the material will experience in dynamic situations like vehicle crashes or other high-energy events. 
    The equipment is comprised of a gas launcher, an incident bar, a transmission bar, and a stopping mechanism. The gas launcher that is charged with pressurized gas to accelerate a striker bar at a measured velocity to create an impact incident. Striker bars of various lengths are used to produce a range of loading durations. The resulting stress pulse is detected by a strain gage mounted on the bar. This engineered dynamic servo driven testing system is capable of achieving velocity rates of up to 10^4s^-1 and 10^3s^-1 under compression and tension respectively from room temperature to 600 C.




Servo Hydraulic Machine


     
Servo-hydraulic testing machines, shown here, have universal application for materials and component testing under pulsating or alternating loads, with periodic or random signals. This equipment delivers a broad array of testing capabilities and quasi-static and dynamic loads are easily achieved. This equipment has a rated dynamic force capacity of 100 kN and provides a maximum vertical test space of 1283 mm.











Universal Testing System

A universal testing machine(UTM), is used to experimentally test the tensile strength and compressive strength of materials. The system is versatile as it is able to perform many standard static tests on materials, components, and structures. The INSTRON equipment provides a 250 kN capacity with 1430 mm of vertical test space. This equipment also features synchronized data acquisition rates of up to 2,500 points per second.