Table 4 Effect of mechanical stress applied in the plane of electrical steel sheet on its magnetic properties1,17.

From: Investigation of the compaction process of electrical machines magnetic circuits and its detrimental effect on magnetic performances

 

Parallel to flux direction**

Perpendicular to flux direction**

Tensile stress

Improvement*

Degradation

Compressive stress

Degradation

Improvement*

  1. *Up to a few tens of MPa, then a degradation is observed with higher stress levels.
  2. **For an identical level of stress, stresses along the magnetic flux direction are quantitavely more impactful than those perpendicular1.
Back to article page