Dropweight sample tester

Details Dropweight sample tester Dropweight sample tester

G - Physics

01

N

73/87

G01N 3/30 (2006.01) G01N 3/02 (2006.01)

Patent

CA 1077295

ABSTRACT OF THE DISCLOSURE DROPWEIGHT SAMPLE TESTER This invention provides a process and apparatus for determining the energy absorbed by a test-piece of material during its fracture. The test- piece is supported horizontally between two separated anvils, and a dropweight is released from a position above the test-piece so that the same can be struck and fractured. Means are provided for determining, by measuring a determining characteristic of the motion of the dropweight after the test-piece has been fractured, the theoretical height from which the dropweight would have had to be released in order to have that post- fracture motion if the test-piece had not been in the way. The difference between this calculated theoretical height and the actual height of release, multiplied by the weight of the dropweight, provides a measure of the energy absorbed by the test-piece during its fracture.

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