| METADEX Antwortnummer 40 - © 1998 CSA |
| Title |
| | Rayleigh Wave Propagation in a Solid With a Cold Worked Surface Layer. |
| Author |
| | Hirao, M.; Kyukawa, M.; Sotani, Y.; Fukuoka, H. |
| Publication Source |
| | J. Nondestr. Eval. (Mar. 1981) 2, (1), 43-49 |
| Document Type |
| | Journal |
| Language |
| | English |
| Abstract |
| | The propagation of the Rayleigh surface wave is experimentally studied along the top surface of used railroad rail JIS-50N under conditions where ultrasonic pulses have carrier frequencies ranging from 0.4 to 3.0 MHz and approx 10 mu s duration. The generation of the first higher (M 21 or Sezawa) mode and the fundamental (M 11) mode and their dispersion properties are observed. These phenomena are attributable to the presence of the cold worked surface layer caused by the wheel passage. It is shown that a theoretical model of a single layer overlying a half space, whose elastic constants are determined by a destructive method, yields results which agree with the dispersion curves obtained experimentally. On the basis of this one-layered model, an inversion method to estimate the layer thickness and its elastic constants is discussed.-AA |
| Accession Number |
| | 82(10):22-1300 |
