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Determination of Fracture Toughness in 2‐D Woven SiC Matrix Composites Made by Chemical Vapor Infiltration
Author(s) -
Droillard Christine,
Voisard Patrick,
Heibst Cyril,
Lamon Jacques
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08470.x
Subject(s) - composite material , materials science , chemical vapor infiltration , ceramic matrix composite , fracture toughness , ceramic , toughness , tension (geology) , enhanced data rates for gsm evolution , strain energy release rate , toughening , beam (structure) , matrix (chemical analysis) , fracture mechanics , compression (physics) , structural engineering , engineering , telecommunications , computer science
An approach to the R ‐curve behavior of 2‐D woven ceramic matrix composites is proposed. This approach takes into account the presence of a process zone at the crack tip. The strain energy release rate is determined using an equivalent system of two specimens free of process zones. The process zone size is determined independently by assimilating a notch tip region to a beam of bimaterial. Compact tension specimens having different dimensions and single‐edge notched beam specimens were used for the analysis. Important trends in toughening of ceramic matrix composites were anticipated.