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Dynamic Behavior of Composites under Preloading
Author(s) -
Geißler Adam,
Geißler Egon
Publication year - 1992
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19920170413
Subject(s) - preload , materials science , composite material , vibration , finite element method , constitutive equation , moduli , structural engineering , compounding , dynamic mechanical analysis , stress (linguistics) , polymer , engineering , physics , acoustics , linguistics , philosophy , medicine , hemodynamics , quantum mechanics
Polymers with characteristic damping properties are obtained by compounding them with additives. The mechanical behavior under vibration conditions of these compounds is characterized by dynamic moduli which depend on the static preload. The test results of a PU‐compound are presented in this paper. The obtained results enable one to calculate the complex moduli of a special dynamic constitutive equation, which then enables one to calcualte stress and strain of dynamic deformations of structures under static preload. The paper presents a method to calculate such loading conditions on a system, too. A finite element analysis is used to determine the frequency response which characterizes the damping behavior of the structure.