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Macroscopic failure of multilayered viscoelastic polymers
Author(s) -
Wu Chunhui,
Mantell Susan C.,
Davidson Jane H.
Publication year - 2008
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20881
Subject(s) - viscoelasticity , materials science , creep , composite material , polymer , nonlinear system , deformation (meteorology) , material properties , physics , quantum mechanics
This study considers creep deformation (macroscopic failure) of laminated polymer materials. A closed form analytical model is developed to characterize creep in laminates loaded in the linear viscoelastic region. For nonlinear viscoelastic loading, a numerical solution is developed. The models are based on an application of laminated plate theory to materials with viscoelastic layers. Both approaches are able to predict laminate behavior with input of appropriate material properties for each layer. Experimental data are presented, which confirm the validity of the analytical model for laminates constructed from nylon66 and liquid crystalline polymer films. The validated macroscale failure models are capable of characterizing a variety of materials. A case study is included to demonstrate the influence of layer properties and orientation on overall laminate performance. POLYM. ENG. SCI., 2008. © 2007 Society of Plastics Engineers