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Modeling of the mechanical response and evolution of optical anisotropy in deformed polyaniline
Author(s) -
Makradi A.,
Ahzi S.,
Gregory R. V.
Publication year - 2000
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.11303
Subject(s) - materials science , anisotropy , deformation (meteorology) , polyaniline , composite material , viscoplasticity , shear (geology) , amorphous solid , tension (geology) , compression (physics) , polymer , optics , finite element method , constitutive equation , thermodynamics , crystallography , physics , chemistry , polymerization
The mechanical response under large deformation at room temperature of amorphous polyaniline (PANI) is simulated using an elastic‐viscoplastic model for large strain of glassy polymers. The evolution of optical anisotropy under deformation is also simulated by coupling the mechanical anisotropy due to molecular alignment to the optical properties. Several homogeneous deformation tests such as tension, compression and shear are considered. For the evolution of the mechanical anisotropy and the associated optical anisotropy, we compare the results from three network models. Our predicted results are compared to experimental observations and good agreement is found.