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A constitutive model for continuous fiber reinforced polymer plies
Author(s) -
Flatscher Thomas,
Schuecker Clara,
Pettermann Heinz E.
Publication year - 2009
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200910007
Subject(s) - constitutive equation , materials science , stiffness , plasticity , fiber , matrix (chemical analysis) , phenomenological model , structural engineering , composite material , computer science , mathematics , finite element method , engineering , statistics
In the present paper a constitutive model is reviewed which can be used to predict the non‐linear behavior of continuous fiber reinforced laminates with polymeric matrix materials. The constitutive model considers stiffness degradation and plastic strain accumulation at the length scale of the individual plies (laminae). These effects are modeled via two different phenomenological approaches, however, their interaction is considered when the constitutive equations are solved by an implicit integration scheme. To demonstrate the predictive capabilities of the individual model parts, examples are given where the above mentioned effects are decoupled. This way, their impact on the laminate's response can be studied independently. (© 2009 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)