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Homework Help: Drop Tests - Impact Question

  1. Apr 15, 2008 #1
    Hi all.

    I am conducting some low velocity drop test experiments. The test specimen is clamped and held inside a cradle which itself is attached to a load cell. The load cell works in tension and records the force on the cradle.

    I believe that the KE just before impact is dispersed in three main ways:
    -Absorbed by the specimen by plastic defomation
    -On the clamp that holds the specimen - this force is read by the load cell
    -The residual velocity of the projectile (if any)
    Plus noise and other small losses.

    So, my question is, how can i get an energy value from the load cell reading? I need this to find the energy absorbed by the specimen. The load cell gives me a force v time graph. I believe the area under this curve is the impulse, but I'm unsure how I can equate this to an energy value.
    Any help would be great - Thanks a lot.
  2. jcsd
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