The ability of materials to absorb energy is one essential index to measure impact resistance, directly affecting the lifespan of finished products. The energy absorption is directly proportionate to flexibility. That is the reason why plastic has a stronger capacity to digest energy and withstand bigger deformation. Resistance to impact energy also varies depending on the test temperatures. The value is less in lower temperature than that in higher temperature.
Specimens are divided into notched specimens and unnotched specimens. The notched sample is generally intended to evaluate impact energy and notch sensitivity. The energy absorbed by the test piece is captured and calculated after the pendulum hits the target from the prescribed height and at a specified elevation angle, providing data support for the test result.
Pendulum impact testing machine is the most common equipment used by research & development institutes, universities & colleges, manufactures of non-metallic materials.