sgio.read_material_from_json

sgio.read_material_from_json(file_path: str) → dict[str, CauchyContinuumModel]

Read a single material from a JSON file and return as a dictionary.

Parameters:

file_path (str) – Path to the JSON file containing a material dictionary

Returns:

Dictionary with material name as key and material model as value

Return type:

dict[str, CauchyContinuumModel]

Raises:

• FileNotFoundError – If the specified file does not exist

• ValueError – If the JSON is invalid or does not represent a single material, or if the material has no name

• TypeError – If the JSON content is not a dictionary

Examples

>>> # JSON file: {"name": "Steel", "isotropy": 0, "e": 200e9, "nu": 0.3, "density": 7850}
>>> materials = read_material_from_json("steel.json")
>>> materials['Steel'].e1
200000000000.0

Notes

This function now returns a dictionary to align with the name-based material storage architecture. The material’s name field is used as the dictionary key.