Method and system for numerically simulating foam-like material in finite element analysis
US7308387B1 · kind B1 · utility
6Cited by
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20Claims
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Key dates
| Filing date | Feb 19, 2004 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Jun 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/23
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system to numerically simulating structural responses of a highly compressible material such as foam in finite element analysis is disclosed. According to one aspect of the simulation, a new improved method for calculating structural responses is derived using the following assumptions: uniaxial loading and isotropic material. As a result of the new method, Ogden polynomial stress function f(λ) is replaced by a tabulated function depending upon only a set of stress-strain curves obtained via uniaxial tension and compression tests. The method is implemented in a finite element analysis software product.
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