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The relative influences of molecular structure on brittle fracture by fatigue and under constant load in polyethylenes
Author(s) -
Zhou Y.,
Lu X.,
Zhou Z.,
Brown N.
Publication year - 1996
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.10606
Subject(s) - materials science , branching (polymer chemistry) , brittleness , brittle fracture , composite material , fatigue testing , constant (computer programming) , fracture (geology) , computer science , programming language
The resistance to failure under an oscillating load, fatigue, and to failure under constant load (CL), are presented for a large number of linear polyethylenes. The effects of fatigue and a CL on brittle fracture are compared with respect to the influence of the molecular structure such as branching and the molecular weight. Molecular weight has a relatively greater influence on fatigue, whereas branching is more important under CL.