Abstract
The room‐temperature mixed‐mode fracture of commercial hot‐pressed Si3N4 was examined using controlled surface flaws in 4‐point bending, oriented at various angles 6 with respect to the outer fiber tensile stress direction. Catastrophic fracture paths were non‐coplanar with the initial flaw plane, and the stress intensity factor ratio KI/KIC was < 1 for fracture in modes II and III. A non‐coplanar maximum strain‐energy release rate fracture criterion best described mixed‐mode fracture.
Full Text
Published Version
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 call