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Flexural fatigue of glass‐reinforced thermoplastics
Author(s) -
Cessna L. C.,
Levens J. A.,
Thomson J. B.
Publication year - 1969
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.760090505
Subject(s) - materials science , composite material , viscoelasticity , glass fiber , flexural strength , dissipative system , deflection (physics) , stress (linguistics) , linguistics , philosophy , physics , quantum mechanics , optics
The fatigue failure of thermoplastics and glass‐reinforced thermoplastics is a function of cyclic stress or deflection level, test frequency, viscoelastic polymer parameters and matrix‐to‐fiber stress transfer. This paper reports an investigation of the modes of high frequency fatigue failure in glass‐reinforced and unreinforced thermoplastics. In particular the effects and control of dissipative heating of a working specimen and the role of efficient matrix‐to‐fiber stress transfer are considered. A test procedure with which the severity of dissipative heating can be continuously followed and controlled during an accelerated fatigue test is described.