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分析了陶瓷,玻璃等脆性材料的断裂机理和表征。指出了脆性材料的失效过程的三种不同的裂纹发展模式。实验研究了玻璃在静载下的亚临界裂纹扩展特征及其受双向应力的影响。从而为脆性材料的可靠性和寿命评价提供理论基础和手段。
The fracture mechanism and characterization of brittle materials such as ceramics and glass are analyzed. Three different modes of crack development for the failure process of brittle materials are pointed out. Experimental study of glass under static load subcritical crack growth characteristics and its impact by the two-way stress. So as to provide the theoretical basis and means for the reliability and life evaluation of brittle materials.