The damage of welded specimens is measured in the strain-controlled LCF experiment of titanium alloy (TC4) which is often used in aero-engine and the damage evolution model is verified.

• 用控制应变的疲劳试验，对航空发动机中常用的TC4钛合金焊接试件进行了疲劳损伤的测量，验证了损伤演变模型。