Abstract
Maxwell stress tensor is one of the methods which are generally used for electromagnetic force calculation. In this paper, it is presented that Maxwell stress tensor T and n·T have no physical meaning and therefore should not be used as sources of mechanical force for deformations or dynamics. The divergence of Maxwell stress tensor ▽·T is the one which can acquire a physical identity and is electromagnetic body force density by an action at a distance like a gravity. This result can be derived from the principle of power balance, and also verified by some thought experiments. The virtual air-gap approach is proposed as a valid solution for the calculation of the body force.
| Original language | English |
|---|---|
| Pages (from-to) | 725-734 |
| Number of pages | 10 |
| Journal | Transactions of the Korean Institute of Electrical Engineers |
| Volume | 58 |
| Issue number | 4 |
| State | Published - Apr 2009 |
Keywords
- Body force
- Electromagnetic force
- Hydrostatics
- Maxwell stress tensor
- Mechanical dynamics
- Mechanical stress
- Solid mechanics