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The fracture probability of high impact polystyrene
Author(s) -
Sjoerdsma S. D.,
Boyens J. P. H.
Publication year - 1994
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.760340203
Subject(s) - materials science , fracture (geology) , polystyrene , composite material , stress (linguistics) , mechanics , polymer , physics , philosophy , linguistics
A theory is developed to describe the fracture probability of high impact polystyrene. By assuming that fracture initiation is a consequence of the impingement of crazes due to the craze thickening process, an equation for the fracture probability as a function of the strain is derived. Experiments support the validity of this equation qualitatively while the stress and temperature dependence of the fracture probabilty correlate in the expected manner with the strain rate. An approximation allows the calculation of the fracture probability as a function of time.