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Influence of viscosity and capillary force on the relationship between crack toughness and crack velocity for an acrylonitrile‐butadiene‐styrene plastic in environmental stress cracking liquids
Author(s) -
Kambour R. P.,
Yee A. F.
Publication year - 1981
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.760210407
Subject(s) - materials science , composite material , capillary action , acrylonitrile butadiene styrene , viscosity , drag , styrene , toughness , cracking , crack closure , fracture mechanics , acrylonitrile , mechanics , polymer , copolymer , physics
The dependence of crack propagation energy R of an acrylonitrile‐butadiene‐styrene (ABS) resin on crack velocity was characterized in air and in several organic liquids. In the liquids an abrupt transition in R from a level like that in air down to a level characteristic of the liquid occurred with decreasing crack velocity. The velocity at the transition varied strongly with liquid viscosity. A simple model of each craze at the crack tip as a set of pipes through which liquid flows, driven by capillary force and retarded by viscous drag, serves to predict the transition velocity.