Abstract
A finite element technique has been used to study the effects of coating properties on the propagation of cracks which terminate perpendicular to the fiber coating or coating/matrix interfaces. Four types of coatings are considered for Nicalon/SiC composites. The hoop and tangential stresses and the energy release rates are analyzed for the various coatings. Although the change in the thickness of coatings has a very small effect on the stress ratio (ratio of hoop stresses along the crack and at the interface) and energy release rate ratio (ratio of energy release rates for the crack penetration and crack deflection), the magnitudes of the stresses and energy release rates change substantially. The finite element results for Nicalon/SiC composites with a carbon coating are in agreement with previous experimental findings.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
