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An investigation on craze growth at a crack tip in polymers
Author(s) -
Yang TingQing,
An Qunli,
Luo Wenbo
Publication year - 2001
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.10818
Subject(s) - materials science , composite material , creep , polymer , stress (linguistics) , power law , linguistics , statistics , philosophy , mathematics
A craze zone model with damage at the crack tip in polymers under creep is presented. By taking into account a power law material, time‐dependence of both craze advance and thickening at the tips of a center crack is investigated. Numerical results show that both length and thickness of the craze zone increase with time while the mean stress decreases. It is also shown that the calculated craze zone profile is coincident with previous experiments, and the size of the craze zone with a damage model is larger than that without considering damage at crack tip zone.