Experimental investigation of longitudinal wave propagation in an elastic rod with coulomb friction |
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Authors: | C S Cornelius W K Kubitza |
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Institution: | (1) Division of Engineering, University of Alabama in Huntsville, Huntsville, Ala. |
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Abstract: | This paper presents the experimental results obtained from the propagation of a compression stress wave generated by the longitudinal impact of two cylindrical elastic rods. One of these rods is subjected to a uniformly distributed coulomb-friction force. In order to determine the stress-wave shape and the decay rate, the rod is subjected to longitudinal impact for different values of coulomb friction. As the stress wave propagates along the rod, it is measured at strain-gage stations located on the stationary rod.In order to correlate the experimental results, the solution of the modified wave equation with coulomb friction is obtained for the longitudinal impact of two semi-infinite rods. |
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