The highstressconcentration effect of notch can accelerate the process of fatigue crack nucleation in the notch specimen.
缺口试样在缺口的高应力集中效应下，加快疲劳裂纹形核过程。
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The thickness of steel elements with highstressconcentration is a very important factor for brittle fracture. Its effects depend on the complex stress state for the stress concentration area.
The goal of the testing is to measure the effects of various configuration changes as we stress the server with a highconcentration of concurrent activity.