Fast Fracture

In structural engineering and material science, fast fracture is a term given to a phenomenon in which a flaw (such as a crack) in a material expands quickly, and leads to catastrophic failure of the material. Stress acting on a material when fast fracture occurs is less than the material's yield stress. A very representative example of this is what happens when poking a blown up balloon with a needle, that is, fast fracture of the balloon's material.

Famous quotes containing the word fast:

    I hope to “stand firm” enough to not go backward, and yet not go forward fast enough to wreck the country’s cause.
    Abraham Lincoln (1809–1865)