N.S.Gorodetskaya, V.T.Grinchenko, V.V.Meleshko On the Saint-Venant's principle for harmonic oscillations of an elastic semi-layer |
Acoustic bulletin, Vol. 9 ¹ 1, (2006) |
| A problem of longitudinal deformation of an elastic semi-infinite layer under the action of various kinds of harmonic loads has been considered. In the range of relatively low frequencies (below the edge resonance frequency), a dynamic analog of the Sain-Venanat's principle can be formulated. When the semi-layer is subjected to simultaneous action of the self-balanced and non-self-balanced loads, the only non-self-balanced component should be taken into account in the far field. If the applied load is a self-balanced one, the considerable stresses arise only near the semi-layer's end. |
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KEY WORDS: the Saint-Venant’s principle, a semi-layer, self-balanced load, non-self-balanced load |
| TEXT LANGUAGE: Russian |