Abstract
Marchand and Duffy tested thin-walled steel tubes in a split Hopkinson torsion bar at a nominal strain-rate of approximately 1600/s and could not determine conclusively whether a shear band initiating at a point in the tube propagated around the circumference in one direction or in both directions. They estimated the speed of propagation to be 520 m/s in the former case and 260 m/s in the latter. Here we simulate their test numerically and find that the shear band propagates in both directions around the circumference of the tube. When the tube is twisted at a nominal strain-rate of 5000/s, the band speed varies from 180 m/s at the site of the initiation to approximately 1000 m/s at the nearly diametrically opposite point. The band speed increases with an increase in the nominal strain-rate. The material defect is modeled by assuming that a small region near the center of the tubular surface is made of a material weaker than that of the rest of the tube. © 1994 by ASME.
Recommended Citation
R. C. Batra and X. Zhang, "On the Propagation of a Shear Band in a Steel Tube," Journal of Engineering Materials and Technology, Transactions of the ASME, vol. 116, no. 2, pp. 155 - 161, American Society of Mechanical Engineers, Jan 1994.
The definitive version is available at https://doi.org/10.1115/1.2904266
Department(s)
Mechanical and Aerospace Engineering
Publication Status
Available Access
International Standard Serial Number (ISSN)
1528-8889; 0094-4289
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Society of Mechanical Engineers, All rights reserved.
Publication Date
01 Jan 1994
