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An analytical model for spherulitic growth in fiber‐reinforced polymers
Author(s) -
Benard A.,
Advani S. G.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19981128)70:9<1677::aid-app5>3.0.co;2-4
Subject(s) - crystallization , volume fraction , materials science , fiber , intersection (aeronautics) , polymer , isothermal process , volume (thermodynamics) , polymer science , composite material , synthetic fiber , cylinder , polymer chemistry , thermodynamics , mathematics , geometry , physics , engineering , aerospace engineering
An analytical model for the isothermal crystallization of fiber reinforced polymers is presented. The model is based on approximate expressions for the volume of intersection between a sphere and cylinder. These expressions are used to account for the effect of the fibers on the overall crystallization process. Expressions for the average volume of spherulites truncated by the fibers are computed. The crystallization process is divided into time frames during which specific types of fiber truncations are encountered. Three different time sequences for the occurrence of the truncations are also derived according to the fiber volume fraction. The depressing effect of the fibers on the overall crystallization process is demonstrated with simple examples. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 1677–1687, 1998