Shock and Vibration

Shock and Vibration / 2001 / Article

Open Access

Volume 8 |Article ID 969160 | https://doi.org/10.1155/2001/969160

R. Rusovici, G.A. Lesieutre, D.J. Inman, "Modeling of Shock Propagation and Attenuation in Viscoelastic Components", Shock and Vibration, vol. 8, Article ID 969160, 15 pages, 2001. https://doi.org/10.1155/2001/969160

Modeling of Shock Propagation and Attenuation in Viscoelastic Components

Received29 Nov 2000
Revised29 Nov 2000

Abstract

Protection from the potentially damaging effects of shock loading is a common design requirement for diverse mechanical structures ranging from shock accelerometers to spacecraft. High damping viscoelastic materials are employed in the design of geometrically complex, impact-absorbent components. Since shock transients are characterized by a broad frequency spectrum, it is imperative to properly model frequency dependence of material behavior over a wide frequency range. The Anelastic Displacement Fields (ADF) method is employed herein to model frequency-dependence within a time-domain finite element framework. Axisymmetric, ADF finite elements are developed and then used to model shock propagation and absorption through viscoelastic structures. The model predictions are verified against longitudinal wave propagation experimental data and theory.

Copyright © 2001 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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