| Autor: |
Guz', I. S., Katanchik, V. N. |
| Zdroj: |
Journal of Applied Mechanics and Technical Physics; May 1979, Vol. 20 Issue: 3 p368-372, 5p |
| Abstrakt: |
The interaction of a Rayleigh wave with a stationary crack in a rectilinear surface was treated in [1, 2]. It was shown that under certain conditions a surface wave can generate dynamic stresses large enough to extend a crack. However, there have been no studies of the interaction of a surface wave with a crack in a curvilinear half space, although this case is encountered more frequently in practice. We use the method of dynamic photoelasticity to observe the interaction of a surface wave with an edge crack along and normal to a concave half space. The research was performed on 350×400×15-mm samples of polymethyl methacrylate. A surface wave of duration up to 50µsec was excited by a point micro explosion on the linear portion of the sample joined with the curvilinear part. The interaction of the surface wave with a crack was recorded in circularly polarized light by an SFR-1 high-speed motion-picture camera at 1.5 · 106 frames/sec. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full text from SpringerLink