The second order regressive polynomial was determined by the curve and the value of CTOD was estimated furthermore.
结果表明，强度组配和残余应力对CTOD设计曲线具有明显的影响；
利用试验研究和数值分析方法，对模拟焊接接头三点弯曲试样不同强度组配对裂纹尖端张开位移(CTOD)的影响进行了研究。
CTOD Experimental Study of Twin-wire Submerged Arc Welded Joint of High-strength Hull Steel
The results indicate that the shapes and positions of the CTOD design curve are greatly affected by the welding residual stress and the strength mis-matching.
CTOD Fracture Toughness Test for Weld Seam of Q370qE of Bridge
本文对化学成份相同、屈强比不同的两种高强钢进行了三点弯曲CTOD试验。
The Research on the Relationship between CTOD and J-integral Along with Their Critical Value δ_c and J_(Ⅰc);
取尺寸为B× 2B(B为试样厚度 )、缺口方向为Np的试样进行三点弯曲试验 ,然后由所得到的 0℃下母材、焊缝和热影响区 (HAZ)的p -V曲线来计算CTOD值 ,并对试验结果进行了讨论和总结。
CTOD*能可作为修订常规冲击韧*标准的依据。
