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The failure morphology of PEEK/carbon fiber ±45° angle‐ply laminates
Author(s) -
Burnett P. J.,
Cervenka A.
Publication year - 1991
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.750120506
Subject(s) - materials science , composite material , peek , enhanced data rates for gsm evolution , failure mode and effects analysis , thermoplastic , stacking , composite laminates , damage tolerance , polymer , composite number , computer science , telecommunications , physics , nuclear magnetic resonance
The ultimate strength of certain thermoplastic matrix laminates is observed to be strongly dependent upon the stacking sequence. Such effects are thought to be due to the development and action of through‐thickness stresses at the edges of laminates. However, the action of such stresses is not normally considered in Classical Laminate Theory. This paper describes experimental studies of the development of damage in, and subsequent failure of, a family of laminates that exhibit “through‐thickness” effects. Important differences between the mode of failure and development of damage prior to failure are identified, and these observations correlated with other workers' predictions concerning the presence and actions of edge stresses.