Code Number: 1R30.21

Demo Title: Shear - Bend a Rod

Equipment:

IR Camera, Iron Rod, Black Background Metal Screen.

Procedure:

See also: 4A30.80 in Heat and Fluids.

Secure the iron rod in front of a uniform background and focus the IR camera for a clear image. DO NOT touch the rod in the viewing area of the camera as the camera will very clearly show where you touched it. Bend the rod back and forth many times. You will see the rod start to heat at the top nearest the bend. The heat will travel downward through the rod as you continue to bend it back and forth.

Disclaimer

These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist. The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose. The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources. Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks. These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage. Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.

Instructional Resources and Lecture Demonstrations

1R30.21 - Shear - Bend a Rod

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