jaxdem.materials.elasticMats

Implementation of some variations of elastic materials.

Classes

Elastic(density, young, poisson)	Example: >>> import jaxdem as jdem >>> elastic_steel = jdem.Material.create("elastic", density=7850.0, young=2.0e11, poisson=0.3)
ElasticFriction(density, young, poisson, mu, e)	Example: >>> import jaxdem as jdem >>> frictional_rubber = jdem.Material.create("elasticfrict", density=1100.0, young=1.0e7, poisson=0.49, mu=0.5, e=1.0) >>> geared_sphere = jdem.Material.create("elasticfrict", density=1100.0, young=1.0e7, poisson=0.49, mu=0.5, e=1.0, mu_r=0.3)

class jaxdem.materials.elasticMats.Elastic(density: float, young: float, poisson: float)

Bases: Material

Example:

>>> import jaxdem as jdem
>>> elastic_steel = jdem.Material.create("elastic", density=7850.0, young=2.0e11, poisson=0.3)

young: float

poisson: float

class jaxdem.materials.elasticMats.ElasticFriction(density: float, young: float, poisson: float, mu: float, e: float, mu_r: float = 0.0)

Bases: Material

Example:

>>> import jaxdem as jdem
>>> frictional_rubber = jdem.Material.create("elasticfrict", density=1100.0, young=1.0e7, poisson=0.49, mu=0.5, e=1.0)
>>> geared_sphere = jdem.Material.create("elasticfrict", density=1100.0, young=1.0e7, poisson=0.49, mu=0.5, e=1.0, mu_r=0.3)

young: float

poisson: float

mu: float

e: float

mu_r: float

Rolling friction coefficient. Produces a resistive torque \(-\mu_r R_{\text{eff}} F_n \hat{\omega}_{\text{rel}}\) opposing relative angular velocity at the contact.