stop drilling

stop drilling

A method of stopping the growth of a crack in a piece of metal by drilling a small hole at the end of the crack. A crack in a piece of metal subject to vibration will continue to grow because of the stresses concentrated at its end in an extremely small area. Very little force acting on this tiny area will tear the metal.

If a small hole is drilled at the end of the crack, the forces, instead of being concentrated at the end of the crack, spread out around the circumference of the hole, and much more force is needed to tear the metal.

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Industry/Domain: Aviation
Category: Aeronautics
Company: Aviation Supplies & Academics
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