A possible mechanism for cross-tie fibril generation in crazing of amorphous polymers

M.G.A. Tijssens, E. van der Giessen

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Samenvatting

A possible mechanism for cross-tie fibril generation in crazes of amorphous polymers is proposed. Detailed finite element calculations are performed on an axisymmetric model of a single fibril inside the craze. These calculations suggest that the hydrostatic stress inside the fibril is large enough to cause cavitation and subsequent growth of initial imperfections inside the fibril. The calculations demonstrate that these cavities will then grow by local plastic flow around them, leading to a continuous network of main fibrils interconnected by cross-tie fibrils. (C) 2001 Elsevier Science Ltd. All rights reserved.

Originele taal-2English
Pagina's (van-tot)831-838
Aantal pagina's8
TijdschriftPolymer
Volume43
Nummer van het tijdschrift3
DOI's
StatusPublished - feb.-2002

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