Charpy Impact Test

Testing procedure:

 

 

An impact testing machine is shown in the diagram

below. Impact testing tests for toughness. A striker / pendulum is released

from a pre-determined height. It strikes and breaks the specimen. A

pointer indicates the height of the follow through after breaking, thus

determining the energy absorbed in breaking the specimen.

 

 

Charpy method:

 

The specimen is held horizontally, clamped at both ends.

The notch is on the opposite side to the pendulum.

 

The striking energy is 300 joules.

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