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| Hydrostatic extrusion process of rods through conical die by element-free method |
| Revised:October 28, 2002 |
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| DOI：10.7511/jslx20046116 |
| KeyWord:meshless method,finite deformation,visco-plasticity,hydrostatic extrusion |
| Qing Qixiang~ |
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| Abstract: |
| The constitutive equations of non-Newtonian fluids are characterized primarily by a Non-linear relationship of Cauchy stress and strain rates. Total Lagrange equilibrium equations are derived through consistent transformation of the special weak equilibrium equations, after which the central difference method solution formulas of the nonlinear equilibrium equations are given by lineralization. An overall element|free method simulation on conical die rods hydrostatic extrusion process is performed. These justified the effectiveness of the finite deformation visco-plastic meshless method in die designing, forming process optimization and analysis on technology. |
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