Abstract
The results of both dynamic mechanical and large stress plastic deformation performed on amorphous polymers below and through their glass transition temperature were interpreted in a common theoretical frame. Nevertheless, some secondary features remain rather poorly understood. The theory mentioned above is then extended by taking into account both the details of the dislocation dynamics (nucleation and propagation of shear microdomains) and molecular mobility described in terms of hierarchically constrained conformational changes.
Résumé
Les résultats de spectrométrie mécanique dynamique et de déformation plastique sous forte contrainte obtenues avec des polymères amorphes, sous et à leur température de transition vitreuse, avaient été interprétés dans un cadre théorique unique. Cependant, quelques faits secondaries restent incompris. La théorie mentionnée est alors étendue pour prendre en compte tous les aspects du comportement dynamique des dislocations (nucléation, propagation de microdomaines de cisaillement) et de la mobilite moleculaire decrite en termes de changements hiérarchisés des conformations.
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© 1998 Springer-Verlag Berlin Heidelberg
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Perez, J., Ladouce, L., Quinson, R. (1998). Mechanical Response of Amorphous Polymers: α + β Mechanical Relaxations, Plastic Deformation, Creep Test and Stress Relaxation. In: Caliste, JP., Truyol, A., Westbrook, J.H. (eds) Thermodynamic Modeling and Materials Data Engineering. Data and Knowledge in a Changing World. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-72207-3_35
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DOI: https://doi.org/10.1007/978-3-642-72207-3_35
Publisher Name: Springer, Berlin, Heidelberg
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