Explicit reproducing kernel particle methods for large deformation problems

Sukky Jun, Wing K Liu*, Ted Belytschko

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

120 Scopus citations

Abstract

The explicit Reproducing Kernel Particle Method (RKPM) is presented and applied to the simulations of large deformation problems. RKPM is a meshless method which does not need a mesh structure in its formulation. Because of this mesh-free property, RKPM is able to simulate large deformation problems without remeshing which is often required for the mesh-based methods such as the finite element method. The RKPM shape function and its derivatives are constructed by imposing the consistency conditions. An efficient treatment of essential boundary conditions is also proposed for explicit time integration. The Lagrangian method based on the reference configuration is employed for the RKPM simulation of large deformation problems. Several examples of non-linear elastic materials are solved to demonstrate the performance of the method. The numerical experiment for the problem of underwater bubble explosion is also performed using the explicit Lagrangian RKPM formulation.

Original languageEnglish (US)
Pages (from-to)137-166
Number of pages30
JournalInternational Journal for Numerical Methods in Engineering
Volume41
Issue number1
DOIs
StatePublished - Jan 1 1998

Keywords

  • Large deformation
  • Meshless methods
  • Non-linear elasticity
  • Reference configuration
  • Reproducing kernel particle methods
  • Underwater bubble dynamics

ASJC Scopus subject areas

  • Numerical Analysis
  • Engineering(all)
  • Applied Mathematics

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