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Problem Description

Metal forming requires the analysis of adaptive results at specific coordinates. The results can then be compared even though the node locations and numbers differ between FE models.

This example demonstrates:

  • Robustness of metal forming,
  • Mapping results from adaptive meshes, and
  • Using a stochastic field described with a sinusoidal perturbation.

 

Introduction

The structure shown is a simple metal forming problem. Part 1, modeled as adaptive, is the work piece being deformed.

prob_desc1.png

A Monte Carlo analysis is done to estimate the scatter that can occur in practice. The variables are:

  • YIELD, the yield strength of the material used in the work piece;
  • FS1, the scaling of the contact force between the work piece and the
    punch;
  • FS2, the scaling of the contact force between the work piece and the
    die;
  • FS3, the scaling of the contact force between the work piece and the
    blank holder; and
  • POFF, the offset of the stochastic field.

 

Problem Solution