Method and system for numerically simulating foam-like...

Details Method and system for numerically simulating foam-like... Method and system for numerically simulating foam-like...

2007-12-11

2007-12-11

Rodriguez, Paul (Department: 2123)

Data processing: structural design, modeling, simulation, and em

Structural design

C703S007000

Reexamination Certificate

active

10783562

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.

REFERENCES:
Nonlinear FEA of Elastomers-MSC Technical Paper, MSC Software, Technical Paper 2000, p. 1-61.
Gallagher et al., “An Efficient 3-D Visualization Technique for Finite Element Models and Other Coarse Volumes” 1989 ACM p. 185-194.
Peric et al., “Finite-Element Applications to the Non-linear Mechanics of Solids” 1998 Univ of Wales p. 1495-1574.

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