Charpy V-Notch Impact Tester

Core Principle: A pendulum of known weight drops from a fixed height, hitting and breaking a standard specimen.

The difference between the final height the pendulum swings to after passing through the specimen and the initial height reflects the energy absorbed by the specimen during fracture.
 

Size and Shape of The Standard Specimen

Standard V-notch specimen: Detailed dimensions are 5×10mm×10mm.

Key feature: The precision of the V-notch tip radius is crucial for test results.

Other types: Briefly mention U-notch and keyhole-notch, which are used for testing more brittle materials like cast iron or plastics.