Stressraiser. A small flaw (internal or surface) or a structural discontinuity at which an applied tensile stress will be amplified and from which cracks may propagate.
一个小裂缝(内部或表面的)或者是结构不连续，在该处施加的拉伸应力将被放大，裂纹会扩展。
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The stressraiser can be found through the measurement of dynamic magnetic parameters of components so that the diagnosis to components and equipment is implemented timely.