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Effects of interlaminar stresses on damping of 0‐degree unidirectional laminated composites
Author(s) -
Yim Jong Hee,
Jang B. Z.,
Suhling J. C.,
Gillespie J. W.
Publication year - 1999
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.10403
Subject(s) - materials science , composite material , dissipation , composite number , shear (geology) , transverse plane , structural engineering , physics , engineering , thermodynamics
The principal aim of this paper is to formulate a general model for predicting damping in composites on the basis of the concept of strain energy‐weighted dissipation. In this model, the effects of interlaminar stresses on damping have been included in addition to the effects of in‐plane extension/compression and in‐plane shear. Validation of the model was confirmed by performing damping measurements on 0° unidirectional composite beams with varying length and thickness. The results of theoretical predictions of damping in laminated composites were found to compare favorably with experimental data. The transverse shear (σ xz ) reveals to have a considerable effect on the damping mechanisms in 0° unidirectional polymer composites. However, the other interlaminar stresses (σ yz , σ z ) were shown to have little influence on damping in composite beam.