fedoo.constitutivelaw.BeamPipe

class BeamPipe(material, r_int, r_ext, k=0.5, name='')

__init__(material, r_int, r_ext, k=0.5, name='')

Properties for a beam with pipe cross section.

Parameters:

• material (ConstitutiveLaw name (str) or ConstitutiveLaw object) – Material Constitutive Law used to get the elastic modulus and shear modulus. The ConstitutiveLaw object should have attributes E and G that gives the young and the shear modulus (as fedoo.constitutivelaw.ElasticIsotrop).

• r_int (scalar or arrays of gauss point values) – Internal radius.

• r_ext (scalar or arrays of gauss point values) – External radius.

• k (scalar or arrays of gauss point values, default: 0.5) – Shear shape factor. If k=0 the beam use the bernoulli hypothesis. Default is set to 0.5 (usual value for thin tube)

• name (str) – Name of the WeakForm

Methods

BeamPipe.get_all()	Return a dict with all the known ConstitutiveLaw (with a name).
BeamPipe.get_beam_rigidity()
BeamPipe.initialize(assembly, pb)	Initialize the constitutive law for the current problem.
BeamPipe.reset()	Reset the constitutive law.
BeamPipe.set_start(assembly, pb)	Begin a new time iteration.
BeamPipe.to_start(assembly, pb)	Restart the current time iteration.
BeamPipe.update(assembly, pb)	Update the constitutive law for the current problem state.

BeamPipe.name	Name of the constitutive law.
BeamPipe.r_int	Internal radius of the beam section.
BeamPipe.r_ext	External radius of the beam section.
BeamPipe.A	Section surface
BeamPipe.Jx	Torsion constant
BeamPipe.Iyy	Second moment of area with respect to y
BeamPipe.Izz	Second moment of area with respect to z
BeamPipe.k	Shear shape factor.