Open AccessModeling of Shock Propagation and Attenuation in Viscoelastic Components
Author(s) -
Razvan Rusovici,
George A. Lesieutre,
Daniel J. Inman
Publication year - 2000
Publication title -
shock and vibration
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 45
eISSN - 1875-9203
pISSN - 1070-9622
DOI - 10.1155/2001/969160
Subject(s) - viscoelasticity , shock (circulatory) , attenuation , finite element method , frequency domain , shock absorber , mechanics , displacement (psychology) , structural engineering , spacecraft , shock wave , wave propagation , shock response spectrum , acoustics , materials science , physics , engineering , classical mechanics , acceleration , aerospace engineering , mathematics , mathematical analysis , optics , composite material , medicine , psychology , psychotherapist
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
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom