Effects of texture evolutions and point defects on ultrasonic waves under simple shear and pure shear

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Abstract

In this paper, longitudinal and transverse wave velocities propagating into aluminum alloy A6061 under simple shear and pure shear were studied experimentally. Compared with the same velocity change tendencies of transverse wave under simple shear and pure shear, longitudinal wave velocity shows different change tendencies under both shear states, regardless of the same shear strain states in two cases. Finite element analysis was performed and the analyzed results indicate that the transverse wave velocity depends on texture evolutions mainly, whereas the longitudinal wave velocity is sensitively influenced by point defects induced by cross-slips. Consequently, the longitudinal wave velocity showing a sensitive response to the point defects was examined by measuring longitudinal wave velocity changes propagating into Al single crystal subjected to the combination loads of equi-biaxial tension and compression. © 2006 Elsevier Ltd. All rights reserved.

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Tang, S. H., Wu, S., Kobayashi, M., & Pan, H. L. (2007). Effects of texture evolutions and point defects on ultrasonic waves under simple shear and pure shear. International Journal of Solids and Structures, 44(3–4), 1277–1290. https://doi.org/10.1016/j.ijsolstr.2006.06.014

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