Implementing 6-noded octahedral elements

febiosoftware / FEBio

FEBio Suite Solver

https://febio.org/

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Implementing 6-noded octahedral elements #63

Closed Kevin-Mattheus-Moerman closed 11 months ago

Kevin-Mattheus-Moerman commented 1 year ago

It would be great to have 6-noded (and maybe higher order ones too) octahedral elements. Would this be easy to add to FEBio?

gateshian commented 11 months ago

Hi Kevin, Would you please provide a literature or online reference for this type of element, including shape functions? Thanks, Gerard

gateshian commented 11 months ago

Hi Kevin,

You can use two pyramid elements to form an octahedron. 5-node (linear) and 13-node (quadratic) pyramid elements already exist in FEBio. Meshes that contain such elements are generally imported from a meshing software that produces this type of elements. FEBioStudio will also generate pyramid elements when revolving a triangular surface about an axis that passes through one edge of that surface.

Best,

Gerard