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Growth of Pre-Existing Micro-Void in Infinite Elastoplastic Body Under Remote Thermal and Mechanical Loads

[+] Author Affiliations
X. Y. Shi, X. C. Shang

University of Science and Technology Beijing, Beijing, China

Paper No. IMECE2013-62538, pp. V08CT09A045; 5 pages
doi:10.1115/IMECE2013-62538
From:
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 8C: Heat Transfer and Thermal Engineering
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5636-9
  • Copyright © 2013 by ASME

abstract

Growth of pre-existing micro-void in infinite elastoplastic body under remote thermal and mechanical loads is analyzed. A geometrical nonlinear mathematic model based on the Hooke elastic law and the ideally Mises yield criterion is constructed. The stress and the displacement distributions near the micro-void are presented by the elastoplastic analysis in this paper. The critical temperature and mechanical loads of cavitation can be calculated by the limiting case of a micro-void. The radius of the micro-void and the radius of the plastic zone increase rapidly when the remote temperature and mechanical load increase and close to the critical value from the numeric computation. It is shown that the unlimited micro-void growth under the critical thermal and mechanical load is referred to as an unstable cavitation.

Copyright © 2013 by ASME
Topics: Stress

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