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Material Processing Simulation Using a Meshfree Method

[+] Author Affiliations
Young H. Park

New Mexico State University, Las Cruces, NM

Paper No. PVP2002-1196, pp. 77-86; 10 pages
doi:10.1115/PVP2002-1196
From:
  • ASME 2002 Pressure Vessels and Piping Conference
  • New and Emerging Computational Methods: Applications to Fracture, Damage, and Reliability
  • Vancouver, BC, Canada, August 5–9, 2002
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-1949-3
  • Copyright © 2002 by ASME

abstract

In this paper, material processing simulation is carried out using a meshfree method. The domain of the workpiece is discretized using the Lagrangian Reproducing Kernel Particle Method (RKPM) where no external meshes are used. The proposed method is formulated for path-dependent material behavior and frictional contact condition. In order to handle large deformation problems, a finite plasticity theory is formulated based on the multiplicative decomposition. The presented formulation is characterized by specifying the elastic domain via any classical yield criterion formulated in terms of Kirchhoff stresses, and a hyperelastic stored energy function relative to the intermediate configuration. A numerical example is demonstrated using the proposed method.

Copyright © 2002 by ASME

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