Geometrical effect, crackpath kinking and deflection, particle bridging and crack shielding are the main toughening mechanisms.
层间增韧的几何效应、裂纹传播路径控制、裂尖屏蔽和颗粒桥联是主要的增韧机理。
2
The high fatigue properties were found to be related with higher crack closure stress, rough fracture surface and tortuousity of crackpath.
较高的疲劳性能与裂纹尖端闭合应力、断口表面粗糙度以及裂纹扩展路径弯折程度有关。
3
The images of crackpath were analyzed systematically using fractal geometry method, and it showed that the growth paths of crack were of fractal property.