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Large Deformation Analysis by Smoothed Particle Hydrodynamics

[+] Author Affiliations
Yoichi Kawashima, Yuzuru Sakai

Yokohama National University, Yokohama, Japan

Nobuki Yamagata

Advanced Creative Technology Company, Ltd., Tokyo, Japan

Paper No. PVP2006-ICPVT-11-93612, pp. 539-543; 5 pages
  • ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
  • Volume 2: Computer Technology
  • Vancouver, BC, Canada, July 23–27, 2006
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4753-5 | eISBN: 0-7918-3782-3
  • Copyright © 2006 by ASME


Smoothed particle hydrodynamics (SPH)[1] is extended to the elastic-plastic large deformation analysis of metals and the hyper-elastic analysis of rubbers. The elastic-plastic analysis theory and the large deformation theory used in this study are fundamentally similar to those of FEM however the theories are applied at the particle points within a smoothing radius in SPH models. In this study the volume constant condition is imposed on the plastic deformation process using a pressure equation given by the particle density condition in a unit volume. Test problems show that the large deformation analysis by SPH leads to good stability and accuracy comparing with FEM results.

Copyright © 2006 by ASME



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