Izod And Charpy Impact Test (Polymer)

The Izod and Charpy Impact Tests are standard methods for evaluating the impact toughness of polymers. Both tests use a pendulum hammer to fracture a notched or unnotched specimen and measure the energy absorbed during fracture. The Izod test uses a vertically clamped cantilever specimen, while the Charpy test uses a horizontally supported specimen. These tests are widely used in quality control, material development, and product qualification to ensure that polymer materials have adequate resistance to sudden impact and shock loading.