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BRIEF NOTES

Characterizing Damping and Restitution in Compliant Impacts via Modified K-V and Higher-Order Linear Viscoelastic Models

[+] Author and Article Information
E. A. Butcher

Department of Mechanical Engineering, University of Alaska, Fairbanks, AK 99775-5905

D. J. Segalman

Sandia National Laboratories,1 P.O. Box 5800, MS 0847, Albuquerque, NM 87185-0847

J. Appl. Mech 67(4), 831-834 (Feb 10, 2000) (4 pages) doi:10.1115/1.1308578 History: Received August 25, 1998; Revised February 10, 2000
Copyright © 2000 by ASME
Topics: Damping , Force
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References

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Brach, R. M., 1991, Mechanical Impact Dynamics: Rigid Body Collisions, John Wiley and Sons, New York.
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Haddad, Y. M., 1995, Viscoelasticity of Engineering Materials, Chapman and Hall, New York.
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Figures

Grahic Jump Location
Restitution coefficients for the half-period K-V and Maxwell models (dotted), modified K-V (solid), and standard linear impact model (numerical results) where η=0.0 (solid), 0.05 (long-dashed), 0.2 (short-dashed), and 0.4 (short-long-dashed)
Grahic Jump Location
Hysteresis diagrams for the Kelvin-Voigt (solid), Maxwell (dotted), and standard linear impact models with ωn=1 and ζ=0.1 where η=0.0 (solid), 0.05 (long-dashed), 0.2 (short-dashed), and 0.4 (short-long-dashed). The modified K-V and standard linear models omit the tension at the conclusion of the restitution phase of impact.

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