Class: OptimizationParams

Hashin-Shtrikman optimization class.

Class to integrate Hashin-Shtrikman (HS) bounds with a genetic algorithm and find optimal material properties for each composite constituent to achieve desired properties.

Built on the Pydantic BaseModel.

Attributes

  • property_categories, list[str]
    List of property categories considered for optimization.

  • property_docs, dict[str, dict[str, Any]]
    A hard coded yaml file containing property categories and their individual properties.

  • lower_bounds, dict[str, Any]
    Lower bounds for properties of materials considered in the optimization.

  • upper_bounds, dict[str, Any]
    Upper bounds for properties of materials considered in the optimization.

  • desired_props, dict[str, list[float]]
    Dictionary mapping individual properties to their desired properties.

  • num_materials, int
    Number of materials to comprise the composite.

  • num_properties, int
    Number of properties being optimized.

  • indices_elastic_moduli, list[Any]
    For handling coupling between bulk & shear moduli. List of length 2, first element is index of bulk modulus in list version of the bounds, second element is the shear modulus.

Class Methods

  • from_user_input

    • Initializes the OptimizationParams class from the user input dictionary.

  • get_num_properties_from_desired_props

    • Calculates the total number of properties from the desired properties dictionary.
    • Args: desired_props (dict)
    • Returns: num_properties (int)

  • get_bounds_from_user_input

    • Extracts bounds (upper or lower) for material properties from the user input.
    • Args:
      • user_input (dict)
      • bound_key (str)
      • property_docs (dict[str, list[str]])
      • num_materials (int)
    • Returns:
      • bounds (dict)

  • get_desired_props_from_user_input

    • Extracts the desired values for each property category.
    • Args:
      • user_input (dict)
      • property_categories (list[str])
      • property_docs (dict)
    • Returns:
      • desired_props (dict)

  • get_elastic_idx_from_user_input

    • Gets the indices of elastic properties from the upper bounds.
    • Args:
      • upper_bounds (dict)
      • property_categories (list[str])
    • Returns:
      • indices (list[int]): ensures proper ordering of elastic moduli