Premium
Cohesive Zone Approach to Interpreting the Fiber Push‐Out Test
Author(s) -
Dollar Anna,
Steif Paul S.
Publication year - 1993
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.1151-2916.1993.tb05313.x
Subject(s) - silicon carbide , cohesion (chemistry) , materials science , composite material , silicon nitride , displacement (psychology) , cohesive zone model , fiber , silicon , surface finish , interface (matter) , test data , fracture mechanics , computer science , layer (electronics) , metallurgy , chemistry , psychology , organic chemistry , capillary number , capillary action , psychotherapist , programming language
A means of inferring interface parameters from the fiber push‐out test is proposed. The significant feature of the approach is the use of a cohesive zone model to capture fiber‐matrix interfacial debonding. The approach is used to interpret push‐out data obtained from silicon carbide/silicon nitride composites. Comparisons are made with other analyses and with other interface models. It is shown that this approach may be particularly useful for composites in which there is substantial interfacial roughness, but little or no chemical cohesion. The advantage of the cohesive zone model in being able to predict the existence of qualitatively different load‐displacement curves associated with different specimen thicknesses is emphasized.