THE STRESSES IN THE NEIGHBORHOOD OF A CRACK-TIP UNDER EFFECTS OF ELECTROMAGNETIC FORCES

In recent work, some basic problems of the stresses in the neighborhoo d of a crack tip under the effects of electromagnetic forces are studi ed, and the basic concept of Maxwell electromagnetic stress tensor is illustrated and used to express the effects of the electromagnetic fie ld to the solid body. The basic governing equations of elastic stress of both potential electromagnetic force and Maxwell stress tensor and the approaches for solving these equations are provided. Two kinds of affects of the electromagnetic field on stress singularity of a crack tip are presented and analyzed. Lastly, several examples about the str ess analysis on the effects of the electromagnetic field are provided.