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Modeling the finite strain deformation and initial anisotropy of amorphous thermoplastic polymers
Author(s) -
Hempel Philipp,
Seelig Thomas
Publication year - 2012
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201210158
Subject(s) - thermoplastic , anisotropy , deformation (meteorology) , materials science , polymer , work (physics) , amorphous solid , thermoplastic polymer , buckling , composite material , orientation (vector space) , finite strain theory , finite element method , mechanical engineering , structural engineering , geometry , physics , engineering , crystallography , mathematics , chemistry , optics
This work deals with modeling the mechanical behavior of thermoplastic polymers in the finite strain regime over a wide range of temperatures. Thereby, special emphasis is put on the incorporation of an initial anisotropy in terms of “frozen‐in” molecular orientation which results from a preceding manufacturing process. A computational example is discussed which considers an injection molded plate undergoing inhomogeneous deformation (buckling) during re‐heating. (© 2012 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)