Fracture toughness characterization of phenolic resin and its composite | Zendy

Charalambides M. N. | Zendy; Williams J. G. | Zendy

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Fracture toughness characterization of phenolic resin and its composite

Author(s) -

Charalambides M. N.,

Williams J. G.

Publication year - 1995

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.750160105

Subject(s) - materials science , composite material , bridging (networking) , epoxy , fracture toughness , composite number , toughness , glass fiber , fiber , fracture mechanics , fracture (geology) , computer network , computer science

The aim of this study is to determine the fracture toughness of phenolic resin and its composite. Fracture tests on phenolic resin resulted in a fracture toughness close to values quoted for unmodified epoxy resins. Composite specimens of glass fiber reinforced phenolic were also tested. The interlaminar fracture toughness in both mode I and mode II failures was determined. The mode I initiation values were lower than the neat resin's toughness. Mode I propagation values were strongly influenced by fiber bridging. The mechanism of fiber bridging was found to be sensitive to specimen dimensions. The effect of fiber bridging on the mode I analysis is discussed. Fiber bridging was also evident in mode II failures. Two different geometries were used for the mode II tests (end loaded split and end notched flexure); a correlation between the results from the two geometries is made.

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