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Fracture in Taylor Rod Impact Test Specimens

[+] Author Affiliations
Sachin S. Gautam

RWTH Aachen University, Aachen, Nordrhein-Westfalen, Germany

Ravindra K. Saxena

Sant Longowal Institute of Engineering and Technology, Sangrur, PB, India

P. M. Dixit

IIT Kanpur, Kanpur, UP, India

Paper No. IMECE2010-37869, pp. 129-138; 10 pages
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4446-5
  • Copyright © 2010 by ASME


High velocity contact-impact problems are of great interest in industries related to aerospace, mechanical and civil engineering. Ductile fracture often occurs in such applications. Taylor rod impact tests are used as experimental and numerical tests for determining the mechanical behaviour of materials subjected to high strain rates. At sufficiently high velocities, a significant plastic deformation leading to fracture is observed. In this paper, ductile fracture in Taylor rod made of AISI1045 steel is simulated using a continuum damage mechanics model. Simulations are performed for the velocity of 250 and 300 m/s. It is observed that, at lower velocities, tensile cracks are observed at the outer edge of the impact surface. On the other hand, at higher velocities, the fracture is observed at the central axis (confined fracture) as well as at the outer edge leading to fragmentation. Both the results are consistent with the experimental results available in the literature.

Copyright © 2010 by ASME



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