Charpy Impact Testing Machines
ASTM D-256, JIS K-7111 , K-6911, K-6743,
• This tester is used to determine the energy
required to break plastics, composites, and
metallic materials. A notch is made at the center of a rectangular standard test specimen. Both ends are used as supports. Impact force is applied by releasing the pendulum. The energy required to break a specimen is calculated by the angle which the specimen swings up corresponding to the residual energy.