Abstract
Electromagnetic acoustic emission technology does nondestructive detection with the effect of dynamic electromagnetic loading to generate a stress field stimulating stress waves from the defects. It can locate small flaws or cracks in thin-walled structures nondestructively to allow inspection of specific areas without loading the whole structure, so it combines advantages of electromagnetic non-destructive testing and acoustic emission non-destructive testing. The paper gives the finite element model of electromagnetic acoustic emission, analyzes the specimen deformations in different conditions, compares effects of several load factors on electroma gnetic acoustic emission and analyzes specimen temperature. Based on the numerical calculation, the experimental is carried out. The experimental result is in good agreement with theoretical analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 23-27+51 |
| Journal | Diangong Jishu Xuebao/Transactions of China Electrotechnical Society |
| Volume | 24 |
| Issue number | 1 |
| State | Published - Jan 2009 |
| Externally published | Yes |
Keywords
- Electromagnetic acoustic emission
- Finite element model
- Lorentz forces
- Non-destructive testing
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