GESAC has extensive experience in developing finite element and lumped mass models of biological systems and complicated engineering systems. FE and lumped mass models have been used in support of design and load and stress analysis. Some models that we have developed, such as the FE model of an infant eye have been used to evaluate the stresses on the infant eye when it is exposed to an external input such as force or acceleration. In addition, GESAC has extensive experience in reconstruction of automotive accidents.
1. Finite Element Modelling
Most of the dynamic FE models that GESAC has developed have been based on LS-Dyna. Our staff maintain and enhance the SImon FE model of the head and brain for the NHTSA. We have developed LS-Dyna models of Thor dummy components to guide our design efforts.
As a general rule, GESAC tends to develop lumped mass models to support design efforts before developing FE models. Lumped mass models are developed using DYNAMAN, our copyrighted 3-D occupant simulation model. DYNAMAN can be used to model other dynamic systems not involving automobiles and occupants. A description of the DYNAMAN software is available on the page entitled "Software".