Based on the analysis, the principle of iso-stress sample design and the shape and dimensions of a recommended iso-stress specimen for bending fatigue of sheet materials have been suggested.
基于这种分析结果，提出了板材弯曲疲劳等应力试样设计原理以及推荐试样的形状和尺寸。
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The plated sheet can be used to prepare the specimen for optical microscopy, SEM and TEM, it can also be used for the heat-treatment and the microhardness test of the powders.
The fatigue behaviours of Superalloy GH901 under major combined with minor cycle have been systematically studied at room temperature using smooth specimen and sheet with center hole.