elaston.orientation module

elaston.orientation.get_dislocation_orientation(dislocation_type: str = 'screw', crystal: str = 'bcc') → dict[str, ndarray]

Get the orientation of a dislocation in a crystal.

Parameters:

• dislocation_type (str) – Type of dislocation. “screw” or “edge”.

• crystal (str) – Crystal structure. “bcc” or “fcc”.

Returns:

Dictionary containing the following keys:

• glide_plane (np.ndarray): Glide plane normal.

• burgers_vector (np.ndarray): Burgers vector.

• dislocation_line (np.ndarray): Dislocation line.

• orientation (np.ndarray): Dislocation orientation matrix; First

  row is the glide plane, and the last row is the dislocation line.

Return type:

dict

elaston.orientation.get_shockley_partials(burgers_vector: ndarray = array([1, -1, 0]), glide_plane: ndarray = array([1, 1, 1])) → tuple[ndarray, ndarray]

Get the Shockley partials for a dislocation in fcc materials.

Parameters:

• burgers_vector ((3,)-np.ndarray) – Burgers vector.

• glide_plane ((3,)-np.ndarray) – Glide plane normal.

Returns:

Shockley partials.

Return type:

(np.ndarray, np.ndarray)