论文部分内容阅读
试验用柔度的方法标定0.20≤α/w≤0.75范围内一种实用燕尾试样的K_I(BB_N)~(1/2)W~(1/2)/P 值,并与Srawley用边槽配置法对无边槽的燕尾试样计算出的K_IB(W)~(1/2)/P值作了比较。用A3钢制成的这种实用燕尾试样在-196℃温度时测定K_(Ic)和K_(Ia),其比值等于0.69。
Experiments were performed to calibrate K_I (BB_N) ~ (1/2) W ~ (1/2) / P values of a practical dovetail sample in the range of 0.20≤α / w≤0.75 using the method of compliance, The collocation method compares the calculated K_IB (W) 1/2 (1/2) / P value of the inflated trough dovetail sample. This practical dovetail sample made of A3 steel was tested for K_ (Ic) and K_ (Ia) at a temperature of -196 ° C, with a ratio equal to 0.69.