It is shown that the fracture properties are determined by materials strength before tufftride process and by materials toughness after tufftride process.

疲劳最后断裂性质取决于材料的强度和韧性。

Therefore we point out a new method of testing fragile material's strength of extension.That is to say we can measure the disk's strength of extension by pressing in its diametric.

从而对脆性材料抗拉强度的测定提出了一种新的方法,即通过对圆盘沿直径对心受压试验可测出其抗拉强度。