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Asymmetrical Column Assembly for High-Cycle Fatigue Test

Abstract: 

A column assembly for use in conjunction with a test machine, for inducing high-cycle fatigue (at kilohertz vibration rates) in a specimen of a material under test. The column assembly has isolation masses, a specimen grip, and two actuators, the latter for imparting dynamic forces to the test specimen. The actuators are arranged on the column assembly asymmetrically relative to the test specimen.

Patent Number: 
6,813,960
Date Of Issue: 
11/09/2004
Inventors: 

Thomas E. Owen; David L. Davidson; John B. Campbell; Andrew Nagy