One of the most critical properties of composite materials is the residual strength after impact: How much degradation has resulted from a tool strike, a collision, or some sort of impact.
Instron offers a family of instrumented and non-instrumented impact testing systems for determining the impact-resistance properties of composites and other materials.
The most popular form of impact testing of composites involves a drop tower which lets a well-understood impactor strike a composite plaque under defined, energy-controlled conditions. The impacted panel is then tested in compression for residual strength (Compression After Impact).
Instron/CEAST high precision impact testing systems include instrumented striker "tups" to measure impact load and energy at very high speeds - to capture the energy absorbing properties of all sorts of materials and structures - at room and non-ambient temperatures.
Whereas Drop Tower systems can be used for partial damage (rebound) or destructive testing (puncture), pendulum systems are typically designed to overwhelm a test coupon in bending and measure the energy absorbed during failure. Instron/Ceast offer a family of instrumented or non-instrumented, digitally-controlled pendulum systems for composites, plastics, and other materials.
Examples of Testing Solutions