We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A Smoothed Particle Galerkin Formulation for Extreme Material Flow Analysis in Bulk Forming Applications.
- Authors
Wu, C. T.; Hu, W.; Koishi, M.
- Abstract
This paper presents a new particle formulation for extreme material flow analyses in the bulk forming applications. The new formulation is first established by an introduction of a smoothed displacement field to the standard Galerkin formulation to eliminate zero-energy modes in conventional particle methods. The discretized system of linear equations is consistently derived and integrated using a direct nodal integration scheme. The linear formulation is next extended to the large deformation quasi-static analysis of inelastic materials. As quasi-static Lagrangian simulation proceeds in the severe deformation range, the analysis method is switched to explicit dynamics formulation and an adaptive Lagrangian kernel approach is preformed to reset the reference configuration and maintain the injective deformation mapping at the particles. Both nonconvex and convex meshfree approximations are investigated in this study. Several numerical benchmarks are provided to demonstrate the effectiveness and accuracy of the proposed method.
- Subjects
CLUSTERING of particles; MATERIALS analysis; FLUID flow; GALERKIN methods; PARTICLE methods (Numerical analysis); LINEAR equations
- Publication
International Journal of Computational Methods, 2016, Vol 13, Issue 3, p-1
- ISSN
0219-8762
- Publication type
Article
- DOI
10.1142/S0219876216500195