"elements" block

The current parser uses the JSON block name "elements". The old [elmts] text block is obsolete.

json { "elements": { "elmt1": { "type": "mechanics", "dofs": ["ux", "uy"], "domain": ["alldomain"], "material": { "type": "linearelastic", "parameters": { "E": 210.0, "nu": 0.3 } } } } }

Each subobject such as "elmt1" or "elmt2" is one element block.

Options inside each element block

• "type": required string. This is the element or physics model name.
• "dofs": required array of DoF names. Every entry must already exist in the "dofs" block.
• "domain": optional array of bulk domain names. If omitted, AsFem uses ["alldomain"].
• "material": optional object. If present, it must contain "type", and it can also contain a "parameters" object. If omitted, AsFem keeps the element material as null and prints a warning.

"domain" names must match the bulk physical names stored in the mesh. For imported meshes this usually means the physical volume/surface names defined in the mesh file.

There is no standalone "mates" block anymore. Materials are defined inline under each element block.

Supported element types

text poisson diffusion thermal mechanics dynamics allencahn cahnhilliard wave kobayashi laplace scalarbodysource stresscahnhilliard stressdiffusion allencahnfracture miehefracture diffusionacfracture user1 ... user10