The totalfatiguelife for welded structure is the sum.
二者寿命之和为焊接结构的总疲劳寿命。
2
Moreover, the study indicated that the fatigue crack initiation period is the main portion of the totalfatiguelife at long lives.
该研究还表明，在长寿命范围，裂纹起始寿命是疲劳全寿命的主要部分。
3
A calculating method of the totalfatiguelife of structural joints is proposed based on a study on both the fatigue crack initiation life and crack growth life of joints.