Modeling of shock propagation and attenuation in viscoelastic materials

R. Rusovici, G. A. Lesieutre, D. J. Inman

Research output: Contribution to conferencePaper

1 Citation (Scopus)

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 parameters over a wide frequency range. The Anelastic Displacement Fields (ADF) method is employed to model frequency-dependence within a finite element framework. Axisymmetric, ADF finite elements are developed to address modeling of geometrically complex structures. These finite elements are then used to model shock propagation and absorption through viscoelastic structures. The model predictions are verified against longitudinal wave propagation experimental data and theory.

Original languageEnglish (US)
StatePublished - Dec 1 2000
Event41st Structures, Structural Dynamics, and Materials Conference and Exhibit 2000 - Atlanta, GA, United States
Duration: Apr 3 2000Apr 6 2000

Other

Other41st Structures, Structural Dynamics, and Materials Conference and Exhibit 2000
CountryUnited States
CityAtlanta, GA
Period4/3/004/6/00

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Accelerometers
Wave propagation
Spacecraft
Damping

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Building and Construction
  • Architecture

Cite this

Rusovici, R., Lesieutre, G. A., & Inman, D. J. (2000). Modeling of shock propagation and attenuation in viscoelastic materials. Paper presented at 41st Structures, Structural Dynamics, and Materials Conference and Exhibit 2000, Atlanta, GA, United States.
Rusovici, R. ; Lesieutre, G. A. ; Inman, D. J. / Modeling of shock propagation and attenuation in viscoelastic materials. Paper presented at 41st Structures, Structural Dynamics, and Materials Conference and Exhibit 2000, Atlanta, GA, United States.
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Rusovici, R, Lesieutre, GA & Inman, DJ 2000, 'Modeling of shock propagation and attenuation in viscoelastic materials' Paper presented at 41st Structures, Structural Dynamics, and Materials Conference and Exhibit 2000, Atlanta, GA, United States, 4/3/00 - 4/6/00, .

Modeling of shock propagation and attenuation in viscoelastic materials. / Rusovici, R.; Lesieutre, G. A.; Inman, D. J.

2000. Paper presented at 41st Structures, Structural Dynamics, and Materials Conference and Exhibit 2000, Atlanta, GA, United States.

Research output: Contribution to conferencePaper

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T1 - Modeling of shock propagation and attenuation in viscoelastic materials

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AU - Lesieutre, G. A.

AU - Inman, D. J.

PY - 2000/12/1

Y1 - 2000/12/1

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AB - 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 parameters over a wide frequency range. The Anelastic Displacement Fields (ADF) method is employed to model frequency-dependence within a finite element framework. Axisymmetric, ADF finite elements are developed to address modeling of geometrically complex structures. These finite elements are then used to model shock propagation and absorption through viscoelastic structures. The model predictions are verified against longitudinal wave propagation experimental data and theory.

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Rusovici R, Lesieutre GA, Inman DJ. Modeling of shock propagation and attenuation in viscoelastic materials. 2000. Paper presented at 41st Structures, Structural Dynamics, and Materials Conference and Exhibit 2000, Atlanta, GA, United States.