Article
Elastic wave propagation in an exponential rod
International Journal of Mechanical Sciences
(1980)
Abstract
A theoretical and experimental investigation was undertaken to study wave propagation in an exponential rod composed of aluminum when subjected to impact by steel spheres with diameters from 3·175 to 50·8 mm at velocities up to about 60 m/s. Strain measurements were effected at three gage stations and force inputs were obtained in some cases by sandwiched quartz crystals located at the impact point. Corresponding data were obtained for a 17·8° cone of the same length and material. One-dimensional predictions concerning wave shapes in the rod were obtained employing an analytical representation that neglected the effects of radial inertia and numerical finite difference methods that either neglected or incorporated the effects of this parameter. Good correspondence was found between the predicted and measured strain histories during first pulse passage; subsequent correlation showed increasing divergence both with shorter pulse durations and increasing propagation distance.
Disciplines
Publication Date
1980
DOI
10.1016/0020-7403(80)90035-1
Publisher Statement
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Citation Information
Nuri Akkas, Freidoon Barez and Werner Goldsmith. "Elastic wave propagation in an exponential rod" International Journal of Mechanical Sciences Vol. 22 Iss. 4 (1980) p. 199 - 208 ISSN: 0020-7403 Available at: http://works.bepress.com/freidoon_barez/7/