“疲劳失效”常见的英文表达是 "fatigue failure"。
例如:
Metal components may suffer from fatigue failure after long-term cyclic loading.(金属部件在长期循环载荷作用下可能会发生疲劳失效 。)
The investigation focused on the causes of the fatigue failure in the aircraft structure.(调查集中在飞机结构疲劳失效的原因上。 )