sdynpy.fem.sdynpy_beam.beamkm_2d

• Module: sdynpy.fem.sdynpy_beam

• Source: GitHub

Signature¶

def sdynpy.fem.sdynpy_beam.beamkm_2d(length, width, height, nnodes, E, rho, nu, axial=True)

A simplified 2D beam with uniform cross section and linear materials

Parameters¶

• length : float Length of the beam

• width : float Width of the beam, perpendicular to the bending plane

• height : float Height of the beam, in the bending direction.

• nnodes : int Number of nodes in the beam (number of elements + 1)

• E : float Elastic modulus

• rho : float Density

• nu : float Poisson’s Ratio

• axial : bool Keep axial motions (default = True)

Returns¶

• K : np.ndarray Stiffness matrix of the beam

• M : np.ndarray Mass matrix of the beam

Notes¶

Dof ordering is axial translation, bending translation, and bending rotation repeated for each node. Axial is X, bending is Z, and rotation is about Y. If axial == False, Dof ordering is bending translation, bending rotation.