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Dynamic Behavior Characterization of Lead at High Strain Rates Using High Speed Photography for Finite Element Simulation

[+] Author Affiliations
G. S. Sohoni, M. V. Walame

Vishwakarma Institute of Technology

V. Tandon, R. S. Mahajan, S. Raju

Automotive Research Association of India

Paper No. IMECE2005-82693, pp. 525-530; 6 pages
doi:10.1115/IMECE2005-82693
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Applied Mechanics
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Applied Mechanics Division
  • ISBN: 0-7918-4212-6 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

This paper reviews experimental as well as computational techniques for determining stress-strain characteristics of materials at high strain rates. Quasi-static and dynamic compression tests were performed on standard Lead (Pb) specimens of three different L/D ratios, 0.8, 2 and 3. A Drop tower system was used to achieve different strain rates along with high-speed camera to capture the vertical and radial deformation of specimen and accelerometers to capture load data. The results obtained from the experiments were processed to generate dynamic stress-strain curve for Lead under different strain rate conditions. It was observed that the dynamic stress increases with increasing strain rate. The information gained is valuable for validating constitutive models.

Copyright © 2005 by ASME

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