“疲劳失效”常见的英文表达是 "fatigue failure"。
例如:
The repeated loading led to fatigue failure of the component.(反复加载导致了该部件的疲劳失效 。)
Engineers need to consider fatigue failure in the design of mechanical structures.(工程师在设计机械结构时需要考虑疲劳失效问题 。)