角焊缝接头是一种焊缝接头。其疲劳损伤具有局部性特征，基于应力场强法的基本思想，通过对角焊接接头的场径分析，通过对法兰角焊缝接头应力集中区的弹塑性有限元计算和应力场强数值求解，得到了接头焊趾区局部应力场强。
研究表明，T形接头的角变形沿焊缝长度方向是变化的。
Study showed that angle deformation of T joint is changed along the welded seam length.
按目前大多数人认可的角接接头焊脚的定义，根据DL/T869—2004《火力发电厂焊接技术规程》去控制焊接尺寸，会出现焊缝有效厚度不足的问题。
The weld size was controlled according to the definition of leg on the corner joint and DL/T869—2004 (power plant welding technical regulation), which led to the effective thickness was insufficient.
LF 21铝合金非承载角焊缝十字接头的疲劳性能对平均应力较为敏感。
The fatigue properties of aluminum alloy welded joints are sensitive to mean stress.
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