检查车轮，车架，等变形，弯曲裂纹等情况。
Check wheels, frame, and so deformation, bending cracks and soon.
这种等应力试样在研究弯曲疲劳，尤其是在弯曲条件下研究疲劳过程中裂纹产生和扩展机理时，将显示出明显的优越性。
The superiority of this design over the conventional one will reveal itself in the studies on the mechanisms of crack initiation and growth in fatigue process under bending condition.
通过TEM—SAD同步原位分析，给出了裂纹扩展和DF Z内晶面畸变的对应过程，通过分析衍射斑点的变化，确定出晶面的畸变有压缩、倾转和局部弯曲等形式。
Synchronized analyses on the process of crack propagation and the lattice plane distortion changing in the DFZ were carried out by using the in situ technique under TEM-SAD.
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