What is the purpose of the Izod and Charpy impact testers,

The Izod Charpy Impact Tester is used to measure the impact resistance of materials, specifically how they respond to sudden force or shock. The Izod test involves a notched specimen placed vertically, while the Charpy test uses a horizontally positioned specimen. Both tests help evaluate the toughness of materials, especially metals and plastics, in various industrial applications. These testers are crucial for ensuring material performance under high-stress conditions and for quality control in manufacturing.