Abstract
A micromechanics-based method based on a fiber shear lag analysis was developed to analyze the fast-fracture response of uncoated ceramic matrix minicomposites. The model was applied to two SiCf/SiC fiber minicomposite systems that were fabricated by Rolls-Royce High Temperature Composites, Inc., and the University of Connecticut. The analysis approach accounts for the fact that on average, the cracks in an actual minicomposite often have an irregular geometry. The effects of local variations in the fiber volume ratio on the composite response were also investigated. Parametric studies were performed to investigate the effects of the interfacial shear stress, global fiber volume fraction, and percentage of the composite that remains uncracked on the proportional limit stress and the composite secondary modulus. This work will facilitate an increased understanding of the key material mechanisms that take place during fast-fracture loading.
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.
