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Toughening in polymer composites. Preliminary results of a micromechanical analysis of yielding in particulate‐modified glassy polymers under multiaxial stresses
Author(s) -
Pavan A.,
Mercante L.
Publication year - 1991
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19910480118
Subject(s) - materials science , composite material , toughening , composite number , fracture (geology) , polymer , micromechanics , particulates , stress (linguistics) , yield (engineering) , matrix (chemical analysis) , stress field , structural engineering , finite element method , toughness , ecology , linguistics , philosophy , engineering , biology
An elementary model of particulate composite material, comprising one or more spherical particles embedded in an infinite matrix of glassy polymer, is examined. A micromechanical analysis of the stress field, as modified by the inclusions, is first carried out in different, significant applied‐stress states (encompassing those occurring at the tip of a crack during fracture), and the relevant yield criteria are then applied. The results are discussed in view of their relevance to the fracture phenomenon, so as to exploit the toughening potential of the composite material.