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Stresses During Impacts on Horizontal Rods

[+] Author Affiliations
Robert A. Leishear

Westinghouse Savannah River Corporation

Paper No. IMECE2005-79178, pp. 1-7; 7 pages
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Recent Advances in Solids and Structures
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4228-2 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME


The impact of an object striking the tip of a horizontally mounted bar provides some insight into the dynamics of structural impact in general. Modeling a cylindrical bar provides significant simplifications to enable comparison between experiment and theory. In particular, experimental results available in the literature are compared herein to both elastic wave theory and vibration theory. Relating these two theories is the focus of this paper. Vibrations can be directly related to the time of impact, the maximum stress at the tip of the bar, and the frequencies of the struck bar. Once these stresses and frequencies are found, elastic wave theory can then be used to describe the stresses throughout the bar.

Copyright © 2005 by ASME
Topics: Stress , Rods



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