Simple wave interaction of an elastic string


Broer, L.J.F. and Groesen, E.W.C. van (1977) Simple wave interaction of an elastic string. Rheologica acta, 16 . pp. 161-168. ISSN 0035-4511

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Abstract:The equations for the two-dimensional motion of a completely flexible elastic string can be derived from a Lagrangian. The equations of motion possess four characteristic velocities, to which the following four simple wave solutions correspond: leftward and rightward propagating longitudinal and transverse waves. The latter are exceptional (constant shape). By expanding the solution about a steady solution the interaction of simple waves may be studied. A typical result is the following: As a consequence of their interaction two transverse waves running into opposite directions emit a longitudinal wave and undergo themselves a translation over a finite distance but remain otherwise unchanged. The results are also valuable for a full comprehension of the interaction process of simple waves on inextensible strings.
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Copyright:© 1977 Springer
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