gs.materials.MPM.Muscle#

class genesis.engine.materials.MPM.muscle.Muscle(*, use_visual_raycasting: bool = False, E: float = 1000000.0, nu: float = 0.2, rho: float = 1000.0, lam: float | None = None, mu: float | None = None, sampler: str = 'pbs', update_F_S_Jp: Any = None, update_stress: Any = None, needs_svd: bool = True, idx: int | None = None, model: Literal['corotation', 'neohooken'] = 'neohooken', n_groups: int = 1, stiffness: float = 0.0)[source]#

Bases: Elastic

The muscle material class for MPM.

Parameters:

  • E (float, optional) – Young’s modulus. Default is 1e6.

  • nu (float, optional) – Poisson ratio. Default is 0.2.

  • rho (float, optional) – Density (kg/m³). Default is 1000.

  • model (str, optional) – Stress model (‘corotation’, ‘neohooken’). Default is ‘neohooken’.

  • n_groups (int, optional) – Number of muscle groups. Default is 1.

E: float#
model: Literal['corotation', 'neohooken']#
n_groups: int#
stiffness: float#
model_post_init(context: Any) → None[source]#

Override this method to perform additional initialization after __init__ and model_construct. This is useful if you want to do some validation that requires the entire model to be initialized.

model_config: ClassVar[ConfigDict] = {'extra': 'forbid', 'strict': True, 'validate_default': True}#

Configuration for the model, should be a dictionary conforming to [ConfigDict][pydantic.config.ConfigDict].