Charpy Machine (VIDEO)

National Institute of Standards and Technology (NIST)

Caption

For more than 100 years, scientists have tested the impact resistance of metals used in construction by employing an apparatus called a Charpy machine. This device has a long, weighted arm that swings like a pendulum. When the arm is released, it strikes a metal sample. Researchers measure the energy it took to break the sample in two.

Credit

Jennifer Lauren Lee/NIST

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Please credit Jennifer Lauren Lee/NIST when using this video.

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