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脆性铸铁切口扭转强度研究＊鄢君辉①孟亮②郑修麟③为了满足具有较高缺口敏感性的脆性材料如陶瓷、铸铁等的力学性能和可靠性评价的需要，必须研究其在不同载荷条件下的切口强度。对于脆性或低塑性材料，除拉伸、弯曲切口强度已有一定程度研究外［１～３］，尚未见其切口...
Tensile strength of brittle cast iron cutting * Yan Junhui ① Meng Liang ② Zheng Xiulin ③ In order to meet the needs of mechanical properties and reliability evaluation of brittle materials with high indentation sensitivity, such as ceramics and cast iron, it is necessary to study their incision under different load conditions strength. For brittle or low plastic materials, in addition to tensile, bending strength of the incision has been studied to a certain extent [1-3], yet to see the incision ...