First Cracking Strength of Short-Fiber Reinforced Ceramics.

摘要

The relation between first-cracking strength and inherent flaw size of short- fiber reinforced ceramics (sfrc) are evaluated using a fracture mechanics approach. Such a relation can be employed to predict material reliability. Results of the present investigation shows that the material properties affecting sfrc behavior can be grouped into a single dimension-less term L/u that governs he behavior of sfrc. Sfrc with small L/uc values behaves similarly to continuous fiber composites while sfrc with large L/uc behave similarly to ideally brittle materials (Griffith materials). L/ucis thus an important parameter to be considered in the design of sfrc. (MM).