Method for predicting plastic strain ratio from stamping simulation
US10956634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2018 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | May 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2113/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of evaluating a sheet metal stamping simulation is provided. The method may include defining elements of a finite-element mesh representing a stamped panel, operating on the elements to simulate deformation of the panel during stamping to generate, for each of the elements, incremental differential major and minor plastic strain values, applying a weighting factor to temporally adjacent pairs of the values to generate smoothed values, deriving, from the smoothed values and for each of the elements, a plurality of plastic strain incremental ratios representing plastic flow direction of the elements during the deformation, and altering colors of a map based on the ratios to represent changes in severity of plastic deformation of the stamped panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.